Cathopedia:Voci della Catholic Encyclpedia
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Segui @CathopediaL'elenco completo delle voci della Catholic Encyclopedia.
- Aachen
- Aarhus, Ancient See of
- Aaron
- Abachum, Audifax, Martha, and Maris, Saints
- Abaddon
- Abandonment
- Abarca, Pedro
- Abarim
- Abba
- Abbadie, Antoine d'
- Abban of Magheranoidhe, Saint
- Abban of New Ross, Saint
- Abban the Hermit, Saint
- Abbé
- Abbeloos, Jean Baptiste
- Abbess
- Abbey
- Abbo Cernuus
- Abbon, Saint
- Abbot
- Abbot, Commendatory
- Abbot, Henry
- Abbot, Lay
- Abbreviation, Methods of
- Abbreviations, Ecclesiastical
- Abbreviators
- Abdera
- Abdias
- Abdias of Babylon
- Abdication
- Abdon and Sennen, Saints
- Abduction
- Abecedaria
- Abecedarians
- Abel
- Abel
- Abel, Blessed Thomas
- Abelard, Peter
- Abelly, Louis
- Abenakis
- Aben-Ezra, Abraham-ben-Méir
- Abercius, Inscription of
- Abercromby, John
- Abercromby, Robert
- Aberdeen, The Diocese of
- Aberdeen, The University of
- Aberle, Moritz von
- Abgar, The Legend of
- Abhan, Saint
- Abiathar
- Abila
- Abingdon, The Abbey of
- Abington, Thomas
- Abiogenesis and Biogenesis
- Abipones
- Abisai
- Abjuration
- Abner
- Abomination of Desolation, The
- Abortion
- Abortion, Physical Effects of
- Abra de Raconis, Charles François d'
- Abrabanel, Don Isaac
- Abraham
- Abraham (in Liturgy)
- Abraham, The Bosom of
- Abraham a Sancta Clara
- Abraham Ecchelensis
- Abrahamites
- Abram, Nicholas
- Abrasax
- Absalom
- Absalon of Lund
- Absinthe
- Absolute, The
- Absolution
- Abstemii
- Abstinence
- Abstinence, Physical Effects of
- Abstraction
- Abthain
- Abucara, Theodore
- Abundius
- Abydus
- Abyss
- Abyssinia
- Acacia
- Acacians, The
- Acacius
- Acacius
- Acacius
- Acacius, Saint
- Academies, Roman
- Academy, The French
- Acadia
- Acanthus
- Acanthus
- Acathistus
- Acca, Saint
- Accaron
- Accentus Ecclesiasticus
- Acceptance
- Acceptants
- Accession
- Accessus
- Acciajuoli
- Accident
- Acclamation
- Acclamation (in Papal Elections)
- Accommodation, Biblical
- Accomplice
- Accursius, Francesco
- Acephali
- Acerenza
- Achab
- Achaia
- Achaicus
- Achaz
- Achéry, Lucas d'
- Achiacharus
- Achilleus and Nereus, Domitilla and Pancratius, Saints
- Achimaas
- Achimelech
- Achitopel
- Achonry
- Achor Valley
- Achrida
- Achterfeldt, Johann Heinrich
- Achtermann, Theodore William
- Acidalius, Valens
- Aci-Reale, The Diocese of
- Ackermann, Leopold
- Acmonia
- Acoemetae
- Acolouthia
- Acquaviva
- Acquaviva, Claudius
- Acolyte
- Acosta, Joaquín
- Acosta, José de
- Acquapendente
- Acquaviva
- Acqui
- Acre
- Acre
- Acrostic
- Act of Settlement (Irish)
- Acta Pilati
- Acta Sanctae Sedis
- Acta Sanctorum Hiberniae
- Acta Triadis Thaumaturgae
- Acton, Charles Januarius
- Acton, John
- Acton, John Emerich Edward Dalberg, Baron Acton
- Acton, John Francis Edward
- Acts, Canonical
- Acts, Human
- Acts, Indifferent
- Acts of the Apostles
- Acts of the Martyrs
- Acts of Roman Congregations
- Actual Grace
- Actus et Potentia
- Actus primus
- Actus Purus
- Acuas
- Ad Apostolicae Dignitatis Apicem
- Ad Limina Apostolorum
- Ad Sanctam Beati Petri Sedem
- Ad Universalis Ecclesiae
- Ad Limina Visit
- Adalard, Saint
- Adalbert
- Adalbert I
- Adalbert, Saint
- Adalbert, Saint
- Adam
- Adam in Early Christian Liturgy and Literature
- Adam, The Books of
- Adam of Bremen
- Adam of Fulda
- Adam of Murimuth
- Adam of Perseigne
- Adam of St. Victor
- Adam of Usk
- Adam, John
- Adam, Nicholas
- Adam Scotus
- Adami da Bolsena, Andrea
- Adamites
- Adamnan, Saint
- Adams, James
- Adams, Ven. John
- Adana
- Adar
- Adauctus and Felix, Saints
- Adda, Ferdinando d'
- Addai, Doctrine of
- Addas
- Addeus and Maris, Liturgy of
- Addresses, Ecclesiastical
- Adelaide, Archdiocese of
- Adelaide, Saint
- Adelaide, Saint
- Adelard of Bath
- Adelham, John Placid
- Adelmann
- Adelophagi
- Aden
- Adeodatus I, Pope Saint
- Adeodatus
- Adeodatus (II), Pope Saint
- Adeste Fidelis
- Adjuration
- Administrator
- Administrator (of Ecclesiastical Property)
- Admonitions, Canonical
- Admont
- Ado of Vienne, Saint
- Adonai
- Adonias
- Adoption
- Adoption, Canonical
- Adoption, Supernatural
- Adoptionism
- Adoration
- Adoration, Perpetual
- Adorno, Francis
- Adoro Te Devote
- Adria
- Adrian I, Pope
- Adrian II, Pope
- Adrian III, Pope Saint
- Adrian IV, Pope
- Adrian V, Pope
- Adrian VI, Pope
- Adrian of Canterbury, Saint
- Adrian of Castello
- Adrianople
- Adrichem, Christian Kruik van
- Adso
- Aduarte, Diego Francisco
- Adullam
- Adulteration of Food
- Adultery
- Advent
- Adventists
- Advertisements, Book of
- Advocates of Roman Congregations
- Advocates of St. Peter
- Advocatus Diaboli
- Advocatus Ecclesiae
- Advowson
- Adytum
- Aedan of Ferns, Saint
- Aedh of Kildare
- Aegidius of Assisi, Blessed
- Aegidius of Viterbo
- Aelfred the Great
- Aelfric, Abbot of Eynsham
- Aelnoth
- Aelred, Saint
- Aeneas of Gaza
- Aengus, Saint (the Culdee)
- Aenon
- Aeons
- Aër
- Aërius of Pontus
- Aesthetics
- Aeterni Patris
- Aeterni Patris
- Aëtius
- Affinity (in the Bible)
- Affinity (in Canon Law)
- Affirmation
- Afflighem
- Affre, Denis Auguste
- Afonzo de Albuquerque
- Afra, Saint
- Africa
- African Church, Early
- African Liturgy
- African Synods
- Agabus
- Agape
- Agapetae
- Agapetus
- Agapetus I, Pope Saint
- Agapetus II, Pope
- Agar, William Seth
- Agatha, Saint
- Agathangelus
- Agathias
- Agatho, Pope Saint
- Agaunum
- Agazzari, Agostini
- Agde, Council of
- Age, Canonical
- Age of Reason
- Agen, Diocese of
- Agents of Roman Congregations
- Aggeus
- Aggressor, Unjust
- Agiles, Raymond d'
- Agilulfus, Saint
- Agios O Theos
- Agnelli, Giuseppe
- Agnelli, Fra. Guglielmo
- Agnellus of Pisa, Blessed
- Agnellus, Andreas, of Ravenna
- Agnes of Assisi, Saint
- Agnes of Bohemia, Blessed
- Agnes of Montepulciano, Saint
- Agnes of Prague, Blessed
- Agnes of Rome, Saint and Martyr
- Agnesi, Maria Gaetana
- Agnetz
- Agnoetae
- Agnosticism
- Agnus Dei
- Agnus Dei (in Liturgy)
- Agony, Archconfraternity of Holy
- Agonistici
- Agony of Christ
- Agostini, Paolo
- Agostino Novello, Blessed
- Agoult, Charles Consstance César Joseph Matthieu d'
- Agra
- Agram
- Agrapha
- Agrarianism
- Agreda, Maria de
- Agria
- Agricius, Saint
- Agricola, Alexander
- Agricola, George
- Agricola, Rudolph
- Agrippa of Nettesheim, Heinrich Cornelius
- Agrippinus
- Aguas Calientes
- Aguirre, Joseph Saenz de
- Ahicam
- Ahriman and Ormuzd
- Aiblinger, Johann Caspar
- Aichinger, Gregor
- Aidan of Lindisfarne, Saint
- Aiguillon, Duchess of
- Aikenhead, Mary
- Ailbe, Saint
- Ailleboust, Family of d'
- Ailly, Pierre d'
- Aileran, Saint
- Aimerich, Mateo
- Aire
- Airoli, Giacomo Maria
- Aisle
- Aistulph
- Aix, Archdiocese of
- Aix-en-Provence, Councils of
- Ajaccio, Diocese of
- Akathistos
- Akhmin
- Akominatos, Michael & Nicetas
- Alabama
- Alabanda
- Alabaster
- Alagoas
- Alagona, Pietro
- Alain de l'Isle
- Alalis
- Alaman, Lucas
- Alamanni, Niccolò
- Alan of Tewkesbury
- Alan of Walsingham
- Alanus de Rupe
- Alarcón, Pedro Antonio de
- Alaska
- Alatri
- Alb
- Alba Pompeia, Diocese of
- Alban, Saint
- Albanenses
- Albani
- Albania
- Albano
- Albany
- Albenga
- Albergati, Niccolo
- Alberic of Monte Cassino
- Alberic of Ostia
- Albero de Montreuil
- Alberoni, Giulio
- Albert, Bishop of Riga
- Albert II, Archbishop of Magdeburg in Saxony
- Albert, Blessed (Patriarch of Jerusalem)
- Albert, Saint
- Albert Berdini of Sarteano, Blessed
- Albert of Aachen
- Albert of Brandenburg
- Albert of Castile
- Albert of Saxony
- Albert of Stade
- Alberta and Saskatchewan
- Alberti, Leandro
- Alberti, Leone Battista
- Albertini, Nicolò
- Albertrandi, John Baptist
- Albertus Magnus, Saint
- Albi (Albia), Archdiocese of
- Albi, Council of
- Albi, Juan de
- Albicus, Sigismund
- Albigenses
- Albinus
- Albrechtsberger, Johann G.
- Albright Brethren, The
- Alcalá, University of
- Alcántara, Military Order of
- Alcedo, Antonio de
- Alchemy
- Alcmund, Saint
- Alciati, Andrea
- Alcimus
- Alcock, John
- Alcoholism
- Alcuin
- Aldegundis, Saint
- Aldersbach
- Aldfrith
- Aldhelm, Saint
- Aldric, Saint
- Aldrovandi, Ulissi
- Alea, Leonard
- Alegambe, Philippe
- Alegre, Francisco Xavier
- Alemany, Joseph Sadoc
- Alenio, Guilio
- Aleppo
- Ales and Terralba
- Alessandria della Paglia
- Alessi, Galeazzo
- Alessio
- Alexander (Name of Seven Men)
- Alexander (Name of Several Early Bishops)
- Alexander I, Pope Saint
- Alexander II, Pope
- Alexander III, Pope
- Alexander IV, Pope
- Alexander V
- Alexander VI, Pope
- Alexander VII, Pope
- Alexander VIII, Pope
- Alexander, Saint (Of Cappadocia and Jerusalem)
- Alexander, Saint (Bishop of Comana)
- Alexander, Saint (Patriarch of Alexandria)
- Alexander Briant, Blessed
- Alexander Natalis
- Alexander of Abonoteichos
- Alexander of Hales
- Alexander of Lycopolis
- Alexander Sauli, Blessed
- Alexandre, Dom Jacques
- Alexandria
- Alexandria, Councils of
- Alexandria, The Church of
- Alexandrian Library, The
- Alexandrine Liturgy, The
- Alexandrinus, Codex
- Alexian Nuns
- Alexians
- Alexis Falconieri, Saint
- Alexius, Saint
- Alfield, Venerable Thomas
- Alfieri, Count Vittorio
- Alfieri, Pietro
- Alfonso de Zamora
- Alfonso of Burgos
- Alford, Michael
- Alfred the Great
- Alfrida, Saint
- Alfwold, Saint
- Alger of Liége
- Alghero
- Algiers
- Algonquins
- Alife
- Alighieri, Dante
- Alimentation
- Alimony
- Aliturgical Days
- All Hallows College
- All Saints' Day
- All Souls' Day
- Allah
- Allahabad
- Allard, Paul
- Allatius, Leo
- Allegranza, Joseph
- Allegri, Antonio
- Allegri, Gregorio
- Alleluia
- Allemand, Jean
- Allen, Edward Patrick
- Allen, Frances
- Allen, George
- Allen, John
- Allen, John
- Allen, William
- Allerstein, August
- Alliance, Holy
- Allies, Thomas William
- Allioli, Joseph Franz
- Allison, William
- Allocution
- Allori
- Allot, William
- Allouez, Claude
- Alma
- Alma Redemptoris Mater
- Almagro, Diego de
- Almedha, Saint
- Almeida, John
- Almeria
- Almici, Camillo
- Almond, John
- Almond, John, Venerable
- Almond, Oliver
- Alms and Almsgiving
- Alnoth, Saint
- Alogi
- Aloysius Gonzaga, Saint
- Alpha and Omega (in Scripture)
- Alpha and Omega
- Alphabet, Christian Use of the
- Alphege, Saint
- Alphonsus Liguori, Saint
- Alphonsus Rodriguez, Saint
- Alpini, Prospero
- Alsace-Lorraine
- Altamirano, Diego Francisco
- Altamura and Acquaviva
- Altar Bell
- Altar Breadboxes
- Altar Breads
- Altar Candles
- Altar Candlesticks
- Altar Canopy
- Altar Cards
- Altar Carpets
- Altar Cavity
- Altar Cloths
- Altar Crucifix
- Altar Curtain
- Altar, Double
- Altar Frontal
- Altar, High
- Altar Horns
- Altar Lamp
- Altar Lanterns
- Altar Ledge
- Altar Linens
- Altar (in Liturgy)
- Altar of Our Lady
- Altar of Repose
- Altarpiece
- Altar, Portable
- Altar, Privileged
- Altar Protector
- Altar Rail
- Altar Screen
- Altar Side
- Altar Steps
- Altar Stole
- Altar Stone
- Altar, Stripping of an
- Altar Tomb
- Altar Vase
- Altar Vessels
- Altar Wine
- Altarage
- Altars (in the Greek Churches)
- Altars (in Scripture)
- Altar, History of the Christian
- Altmann, Blessed
- Alto, Saint
- Alton
- Altoona
- Altruism
- Alumbrados
- Alumnus
- Alunno, Niccolò
- Alva, The Duke of
- Alva y Astorga, Pedro d'
- Alvarado, Alonzo de
- Alvarado, Fray Francisco de
- Alvarado, Pedro de
- Alvarez, Balthazar
- Alvarez, Diego
- Alvarez, Manoel
- Alvarez de Paz
- Alvarus Pelagius
- Alypius, Saint
- Alzate, José Antonio
- Alzog, Johann Baptist
- Ama
- Amadeo, Giovanni Antonio
- Amadia and Akra
- Amalarius of Metz
- Amalberga, Saint
- Amalberga, Saint
- Amalec
- Amalfi
- Amalricians
- Amalricus Augerii
- Amandus, Saint
- Amasia
- Amastris
- Amat, Thaddeus
- Amathus
- Amazones, Diocese of
- Ambarach, Peter
- Ambition
- Ambo
- Ambo (in the Russian and Greek Church)
- Amboise, George d'
- Ambronay, Our Lady of
- Ambros, August Wilhelm
- Ambrosian Basilica
- Ambrosian Hymnography
- Ambrosian Library
- Ambrose, Saint
- Ambrose of Camaldoli, Saint
- Ambrose of Sienna, Blessed
- Ambrosian Chant
- Ambrosian Liturgy and Rite
- Ambrosians
- Ambrosiaster
- Ambulatory
- Amelia
- Amelote, Denis
- Amen
- Amende Honorable
- Amerbach, Veit
- America
- America, Pre-Columbian Discovery of
- American College at Louvain, The
- American College in Rome, The
- American College in Rome, The South
- American Protective Association, The
- Amerigo Vespucci
- Amherst, Francis Kerril, D.D.
- Amias, Ven. John
- Amiatinus, Codex
- Amice
- Amico, Antonio
- Amico, Francesco
- Amida
- Amiens, Diocese of
- Amiot, Joseph Maria
- Amisus
- Ammen, Daniel
- Ammon
- Ammon, Saint
- Ammonian Sections
- Ammonites
- Amorbach
- Amorios
- Amorrhites
- Amort, Eusebius
- Amos
- Amovibility
- Amoy
- Ampè, André-Marie
- Amphilochius of Iconium
- Amphilochius of Sida
- Amphorae
- Ampleforth, The Abbey of
- Ampullae
- Ampurias
- Amra
- Amrah
- Amraphel
- Amsterdam
- Amulet
- Amulets, Use and Abuse of
- Amyclae
- Amyot, Jacques
- Anabaptists
- Anacletus, Pope Saint
- Anacletus II
- Anaesthesia
- Anagni
- Analogy
- Analysis
- Anaphora
- Anarchy
- Anastasia, Saint
- Anastasiopolis
- Anastasius, Saint
- Anastasius I, Pope Saint
- Anastasius II, Pope
- Anastasius III, Pope
- Anastasius IV, Pope
- Anastasius, Saint
- Anastasius Bibliothecarius
- Anastasius Sinaita, Saint
- Anathema
- Anathoth
- Anatolia, Saint
- Anatolius, Saint
- Anatolius, Saint
- Anatolia, Saint
- Anatomy
- Anazarbus
- Añazco, Pedro de
- Anchieta, Joseph
- Anchor (as Symbol), The
- Anchorites
- Ancient of Days
- Ancilla Dei
- Ancona, Ciriaco d'
- Ancona and Umana
- Ancren Riwle
- Ancyra
- Ancyra, Councils of
- Andalusia
- Andechs
- Anderdon, William Henry
- Anderledy, Anthony Maria
- Anderson, Henry James
- Anderson, Lionel Albert
- Anderson, Patrick
- Anderton, James
- Anderton, Venerable Robert
- Anderton, Roger
- Anderton, Thomas
- Andlaw, Heinrich Bernhard, Freiherr von
- Andlaw, Venerable William
- Andrada, Alonso
- Andrada, Antonio de
- Andrada de Payva, Diego
- André, Bernard
- André, Yves Marie
- Andrea, Giovanni d'
- Andrea Dotti, Blessed
- Andrea Pisano
- Andreas of Caesarea
- Andreas, Saint
- Andreas of Ratisbon
- Andreis, Felix de
- Andres, Juan
- Andrés, Juan
- Andrew, Saint (Apostle and Martyr)
- Andrew, Saint (Martyr of Lampsacus)
- Andrew Avellino, Saint
- Andrew Bobola, Saint
- Andrew Corsini, Saint
- Andrew of Crete, Saint
- Andrew of Lonjumeau
- Andrew of Rhodes
- Andrew the Scot, Saint
- Andrews, William Eusebius
- Andronicus, Probus, and Tarachus, Saints
- Andria, Diocese
- Anemurium
- Anerio, Felice
- Anerio, Giovanni Francesco
- Anfossi, Filippo
- Ange de Saint Joseph
- Ange de Sainte Rosalie
- Angel
- Angel, Guardian
- Angela Merici, Saint
- Angela of Foligno, Blessed
- Angeli, Francesco degli
- Angeli, Girolamo degli
- Angelicals, The
- Angelico, Fra
- Angelo Carletti di Chivasso, Blessed
- Angelo Clareno da Cingoli
- Angels, Early Christian Representations of
- Angels of the Churches
- Angelus
- Angelus Bell
- Angelus, Silesius
- Anger
- Angers
- Angers, University of
- Anges, Notre Dame de
- Angilbert, Saint
- Angiolini, Francesco
- Anglesea, The Priory of
- Anglican Orders
- Anglicanism
- Anglin, Timothy Warren
- Anglo-Saxon Church, The
- Anglona-Tursi
- Angola and Congo
- Angora
- Angoulême
- Angra
- Angulo, Pedro
- Anhalt
- Anicetus, Pope Saint
- Anima, College and Church of the, in Rome
- Anima Christi
- Animals in Christian Art
- Animals in the Bible
- Animals, Cruelty to
- Animism
- Animuccia, Giovanni
- Anise
- Anna
- Anna Comnena
- Annals, Ecclesiastical
- Annas
- Annat, François
- Annates
- Anne, Saint
- Anne d'Auray, Sainte
- Anne de Beaupré, Sainte
- Anne de Xainctonge, Venerable
- Annecy
- Annegarn, Joseph
- Anne Line, Saint
- Anne-Marie Javouhey, Venerable
- Annibaldi, Annibale d'
- Annibale, Giuseppe d'
- Annius of Viterbo
- Anno, Saint
- Annunciation of the Blessed Virgin Mary, The Fact of the
- Annunciation of the Blessed Virgin Mary, The Feast of the
- Annunciation, The Orders of the
- Anointing of the Sick
- Anquetil, Louis-Pierre
- Ansaldi, Casto Innocenzio
- Ansaloni, Giordano
- Anschar, Saint
- Anse, Councils of
- Ansegisus
- Ansegisus, Saint
- Anselm, Saint
- Anselm, Saint
- Anselm of Laon
- Anselm of Liège
- Anselm of Lucca (the Younger), Saint
- Anselme, Antoine
- Anslo, Reyer
- Anstey, Thomas Chisholm
- Antediluvians
- Anterus, Pope Saint
- Anthelmi, Joseph
- Anthemius
- Anthony of the Desert, Saint
- Anthony, Orders of Saint
- Anthony of Padua, Saint
- Anthony of Sienna
- Anthony of the Mother of God
- Anthropomorphism, Anthropomorphites
- Antichrist
- Antidicomarianites
- Antidoron
- Antigonish
- Antimensium
- Antinoe
- Antinomianism
- Antioch
- Antioch, The Church of
- Antiochene Liturgy
- Antiochus of Palestine
- Antipater of Bostra
- Antipatris
- Antiphellos
- Antiphon
- Antiphon (in the Greek Church)
- Antiphon (in Greek Liturgy)
- Antiphon, Communion
- Antiphonary
- Antiphonary, Gregorian
- Antipodes
- Antipope
- Antiquities, Biblical
- Antivari
- Antofogaste
- Antoine, Paul Gabriel
- Anton Ulrich
- Antonelli, Giacomo
- Antonelli, Leonardo
- Antonelli, Nicolò Maria
- Antoniano, Giovanni
- Antoniano, Silvio
- Antoniewicz, Charles
- Antoninus, Saint
- Antoninus Pius
- Antonio Maria Zaccaria, Saint
- Antonio of Vicenza, Maria
- Antonius
- Antony, Franz Joseph
- Antwerp
- Anunciación, Fray Domingo de la
- Anunciación, Fray Juan de la
- Aosta
- Apaches
- Apameia
- Aparisi y Guijarro, Antonio
- Apelles
- Aphian, Saint
- Aphraates
- Apiarius of Sicca
- Apocalypse, Book of
- Apocatastasis
- Apocrisiarius
- Apocrypha
- Apodosis
- Apollinarianism
- Apollinaris
- Apollinaris, Saint
- Apollinaris (the Elder)
- Apollinaris Claudius, Saint
- Apollonia, Saint
- Apollonius of Ephesus
- Apologetics
- Apolysis
- Apolytikion
- Apophthegmata Patrum
- Aporti, Ferrante
- Apostasy
- Apostle (in Liturgy)
- Apostle Spoons
- Apostles, The
- Apostles, Acts of the
- Apostles' Creed
- Apostles, Portraits of the
- Apostles of Erin, The Twelve
- Apostleship of Prayer, The
- Apostolic Blessing
- Apostolic Camera
- Apostolic Churches
- Apostolic Church-Ordinance
- Apostolic College
- Apostolic Constitutions
- Apostolic Executor
- Apostolic Expeditors
- Apostolic Fathers, The
- Apostolic Letters
- Apostolic Majesty
- Apostolic See, The
- Apostolic Succession
- Apostolic Union of Secular Priests, The
- Apostolicae Curae
- Apostolicae Sedis Moderationi
- Apostolicae Servitutis
- Apostolici
- Apostolici Ministerii
- Apostolici Regiminis
- Apostolicity
- Apostolicum Pascendi Munus
- Apotactics
- Apotheosis
- Apparitions
- Apparitor
- Appeal as from an abuse
- Appeals
- Appetite
- Approbation
- Appropriation
- Apse
- Apse Chapel
- Apsidiole
- Apt, Council of
- Aquarians
- Aquila
- Aquila and Priscilla
- Aquileia
- Aquileia, Councils of
- Aquileian Rite
- Aquinas, St. Thomas
- Aquino, Sora, and Pontecorvo
- Arabia
- Arabia, Vicariate Apostolic of
- Arabia, Councils of
- Arabian School of Philosophy
- Arabici
- Arabissus
- Arad
- Aragon and Castile
- Aran, The Monastic School of
- Aranda, Council of
- Aranda, Philip
- Arason Jón
- Arator
- Araucania
- Araucanians
- Araujo, Antonio de
- Araujo, Francisco de
- Arawaks
- Arbieto, Ignacio de
- Arbitration
- Arbogast, Saint
- Arbroath, Abbey of
- Arbuthnott, Missal of
- Arca
- Arcachon, Our Lady of
- Arcadelt, Jacob
- Arcadiopolis
- Arcae
- Arcanum
- Arch
- Archaeology, Christian
- Archaeology, The Commission of Sacred
- Archange de Lyon
- Archbishop
- Archconfraternity
- Archdeacon
- Archdeacon, Richard
- Archdiocese
- Archelais
- Archeology, Christian
- Archer, James
- Arches, The Court of
- Archiereus
- Archimandrite
- Archinto, Filipo
- Architecture, Ecclesiastical
- Architecture, Gothic
- Archives, Ecclesiastical
- Archontics
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- Beverley Minster
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- Bigamy (in Canon Law)
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- Bilocation
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- Bishop
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- Bonnard, Ven. Jean Louis
- Bonnechose, Henri-Marie-Gaston Boisnormand de
- Bonne-Espérance, The Abbey of
- Bonner, Edmund
- Bonnetty, Augustin
- Bonosus
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- Bonvicino, Alessandro
- Book of Common Prayer
- Book of Kells
- Book of Martyrs, Foxe's
- Books, Index of Prohibited
- Bordeaux
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- Bordone, Cavaliere Paris
- Boré, Eugène
- Borgess, Caspar Henry
- Borgia, Stefano
- Börglum, Ancient See of
- Borgo San-Donnino
- Borgo San-Sepolcro
- Borgognone, Ambrogio
- Borie, Pierre-Rose-Ursule-Dumoulin
- Borneo
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- Borromeo, Andrea
- Borromeo, Saint Charles
- Borromeo, Federico
- Borromeo, Society of Saint Charles
- Borromini, Francesco
- Borrus, Christopher
- Bosa, Diocese of
- Bosch, Peter van der
- Bosco, Saint Giovanni (John)
- Boscovich, Ruggiero Giuseppe
- Bosio, Antonio
- Bosnia and Herzegovina
- Boso
- Boso (Breakspear)
- Bossu, Jacques le
- Bossuet, Jacques-Bénigne
- Boste, Saint John
- Boston
- Bostra
- Bothrys
- Botticelli, Sandro
- Botulph, Saint
- Boturini Benaducci, Lorenzo
- Boucher, Pierre
- Bougaud, Louis-Victor-Emile
- Bougeant, Guillaume-Hyacinthe
- Bouhours, Dominique
- Bouillart, Jacques
- Bouillon, Cardinal de
- Bouix, Marie Dominique
- Boulainvilliers, Henri, Count of
- Boulanger, André de
- Boulay, César-Egasse du
- Boulogne, Etienne-Antoine
- Bouquet, Martin
- Bouquillon, Thomas
- Bourassé, Jean-Jacques
- Bourchier, Thomas
- Bourdaloue, Louis
- Bourdeilles, Hélie de
- Bourdon, Jean
- Bourgade, François
- Bourges
- Bourget, Ignace
- Bourgoing, François
- Bourke, Ulick Joseph
- Bourne, Gilbert
- Bouvens, Charles de
- Bouvet, Joachim
- Bouvier, Jean-Baptiste
- Bouvier, Jeanne-Marie, de La Motte-Guyon
- Bova
- Bovino
- Bowyer, Sir George
- Boy-Bishop
- Boyce, John
- Boycotting
- Boyle Abbey
- Bracken, Thomas
- Bracton, Henry de
- Bradley, Denis Mary
- Bradshaigh, Edward
- Bradshaw, Henry
- Brady, William Maziere
- Braga, Archdiocese of
- Braga, Councils of
- Bragança-Miranda, Diocese of
- Brahminism
- Braille, Louis
- Bralion, Nicolas de
- Bramante, Donato
- Brancaccio
- Brancati, Francesco
- Brancati di Lauria, Francesco Lorenzo
- Branch Sunday
- Brandenburg
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- Brant, Sebastian
- Brantôme, Seigneur de Bourdeille, Pierre de
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- Brasseur de Bourbourg, Charles Etienne, Abbé
- Brassicanus, Johann Alexander
- Brassicanus, Johann Ludwig
- Braulio, Saint
- Braun, Placidus
- Braunschweig
- Bravo, Francisco
- Brazil
- Bread, Liturgical Use of
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- Breads, Altar
- Breast, Striking of the
- Brébeuf, Jean de
- Breda
- Bréhal, Jean
- Brehon Laws, The
- Bremen
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- Brenan, Michael John
- Brendan, Saint
- Brentano, Klemens Maria
- Brescia
- Breslau
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- Brest, Union of
- Brethren of the Lord, The
- Breton, Raymond
- Bretton, Venerable John
- Breviary
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- Breviary, Reform of the Roman
- Brewer, Heinrich
- Briand, Joseph Olivier
- Briant, Saint Alexander
- Bribery
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- Bridge-Building Brotherhood, The
- Bridget of Sweden, Saint
- Bridgett, Thomas Edward
- Bridgewater, John
- Bridgewater Treatises
- Briefs and Bulls
- Brieuc, Saint
- Brigid of Ireland, Saint
- Brigidines, Institute of the
- Brigittines
- Brignon, John
- Bril, Paulus
- Brillmacher, Peter Michael
- Brindholm, Ven. Edmund
- Brindisi
- Brinkley, Stephen
- Brisacier, Jacques-Charles de
- Brisacier, Jean de
- Brisbane
- Brischar, Johann Nepomucene
- Bristol, Ancient Diocese of
- Bristow, Richard
- British Columbia
- Britius, Francis
- Brittain, Thomas Lewis
- Britto, Blessed John de
- Britton, Venerable John
- Brixen
- Brogan, Saint
- Broglie, Auguste-Théodore-Paul de
- Broglie, Jacques-Victor-Albert, Duc de
- Broglie, Maurice-Jean de
- Brogny, Jean-Allarmet de
- Bromyard, John
- Brondel, John Baptist
- Brookby, Anthony
- Brookes, James
- Brooklyn
- Brosse, Jean-Baptiste de la
- Brothers Hospitallers of St. John of God
- Broughton, Richard
- Brouwer, Christoph
- Brown, William
- Browne, Charles Farrar
- Brownson, Orestes Augustus
- Brownson, Sarah
- Brownsville
- Bru, Saint
- Brück, Heinrich
- Bruel, Joachim
- Brueys, David-Augustin de
- Brugère, Louis-Frédéric
- Bruges
- Brugière, Pierre
- Brugman, John
- Brumidi, Constantino
- Brumoy, Pierre
- Brunellesco, Filippo
- Brunetière, Ferdinand
- Brunforte, Ugolino
- Bruni, Leonardo
- Brünn
- Brunner, Francis de Sales
- Brunner, Sebastian
- Bruno, Saint
- Bruno, Saint
- Bruno, Giordano
- Bruno of Querfurt, Saint
- Bruno the Saxon
- Brunswick
- Brus, Anton
- Brusa
- Brussels
- Bruté de Rémur, Simon William Gabriel
- Bruyas, Jacques
- Bryant, John Delavau
- Bubastis
- Bucelin, Gabriel
- Bucer, Martin
- Bucharest
- Buck, Victor De
- Buckfast Abbey
- Buckley, Venerable John
- Buckley, Sir Patrick Alphonsus
- Buddhism
- Budé, Guillaume
- Budweis
- Buenos Aires
- Buffalo
- Buffier, Claude
- Buglio, Louis
- Buil, Bernardo
- Buildings, Ecclesiastical
- Bukarest
- Bulgaria
- Bulla Aurea
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- Bullarium
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- Bullion, Angélique
- Bulls and Briefs
- Bulstrode, Sir Richard
- Bunderius, Joannes
- Buonarroti, Michelangelo
- Burchard of Basle
- Burchard of Worms
- Burchard of Würzurg, Saint
- Burckmair, Hans
- Burgis, Edward Ambrose
- Burgoa, Francisco
- Burgos
- Burgundy
- Burial, Christian
- Buridan, Jean
- Burigny, Jean Lévesque de
- Burkard, Franz
- Burke, Edmund
- Burke, Thomas
- Burke, Thomas Nicholas
- Burleigh, Walter
- Burlington
- Burma
- Burnett, Peter Hardeman
- Burns, James
- Burse
- Bursfeld, The Abbey of
- Bury St. Edmund's, The Abbey of
- Bus, Venerable César de
- Busée, Pierre
- Busembaum, Hermann
- Busiris
- Buskins
- Buss, Franz Joseph, Ritter von
- Bustamante, Carlos María
- Buston, Thomas Stephen
- Bute, John Patrick Crichton-Stuart, Third Marquess of
- Buteux, Jacques
- Butler, Alban
- Butler, Charles
- Butler, Mary Joseph
- Butler, Sir William Francis
- Buttress
- Buxton, Ven. Chrisopher
- Byblos
- Bye-Altar
- Byllis
- Byrd, William
- Byrne, Andrew
- Byrne, Richard
- Byrne, William
- Byzantine Architecture
- Byzantine Art
- Byzantine Empire, The
- Byzantine Literature
- Byzantine Rite
- Caballero, Fernán de
- Caballero, Raimundo Diosdado
- Caballero y Ocio, Juan
- Cabas
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- Cabello de Balboa, Miguel
- Cabeza de Vaca, Alvar Nuñez
- Cabot, John & Sebastian
- Cabral, Francisco
- Cabral, Pedralvarez
- Cabrillo, Estévan
- Cadalous
- Caddo Indians
- Cades
- Cadillac, Antoine de Lamothe, Sieur de
- Cadiz, Diocese of
- Cadwallador, Venerable Roger
- Caedmon, Saint
- Caen, University of
- Caeremoniale Episcoporum
- Caerularius, Michael
- Caesarea
- Caesarea Mauretaniae
- Caesarea Palestinae
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- Caesarius of Arles, Saint
- Caesarius of Heisterbach
- Caesarius of Nazianzus
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- Caesar of Speyer
- Caesaropolis
- Cagliari, Archdiocese of
- Cagli e Pergola, Diocese of
- Cahier, Charles
- Cahill, Daniel William
- Cahors, Diocese of
- Caiaphas
- Caiazzo, Diocese of
- Caillau, Armand-Benjamin
- Cain
- Cainites
- Caiphas
- Caius
- Caius, John
- Caius and Soter, Saints
- Cajetan, Saint
- Cajetan, Constantino
- Cajetan, Tommaso de Vio Gaetani
- Calabozo, Diocese of
- Calahorra and La Calzada, Diocese of
- Calama
- Calancha, Fray Antonio de la
- Calas Case, The
- Calasanctius, Saint Joseph
- Calasio, Mario di
- Calatayud, Pedro de
- Calatrava, Military Order of
- Calcutta
- Caldani, Leopoldo Marco Antonio
- Caldara, Polidoro (da Caravaggio)
- Caldas-Barbosa, Domingo
- Calderon de la Barca, Pedro
- Caleb
- Calendar, Christian
- Calendar, Jewish
- Calendar, Reform of the
- Calepino, Ambrogio
- Cali, Diocese of
- Caliari, Paolo
- California
- California, Vicariate Apostolic of Lower
- California Missions
- Callières, Louis-Hector de
- Callinicus
- Callipolis
- Callistus I, Pope
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- Callistus III, Pope
- Callot, Jacques
- Cally, Pierre
- Calmet, Dom Augustin
- Caloe
- Caltagirone
- Caltanisetta
- Calumny
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- Calvary, Congregation of Our Lady of
- Calvary, Mount
- Calvert, George
- Calvert, Cecilius
- Calvert, Charles
- Calvert, Leonard
- Calvert, Philip
- Calvi and Teano, Diocese of
- Calvin, John
- Calvinism
- Calvinus, Justus Baronius
- Calynda
- Camachus
- Camaldolese
- Cámara y Castro, Tomás
- Camargo, Diego Muñoz
- Cambiaso, Luca
- Cambrai, Archdiocese of
- Cambridge, University of
- Cambysopolis
- Camel, George Joseph
- Camerino, Diocese of
- Camerlengo
- Cameroon
- Camillus de Lellis, Saint
- Camisards
- Camões, Luis Vaz de
- Campagna, Girolamo
- Campagnola, Domenico
- Campan, Jeanne-Louise-Henriette
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- Campanella, Tommaso
- Campani, Giuseppe
- Campbell, James
- Campeche
- Campeggio, Lorenzo
- Campi, Bernardino
- Campi, Galeazzo
- Campi, Giulio
- Campion, Saint Edmund
- Campo Santo de' Tedeschi
- Camus de Pont-Carré, Jean-Pierre
- Cana
- Canaan, Canaanites
- Canada
- Canada, Catholicity in
- Canal, José de la
- Canary Islands, The
- Canatha
- Cancer de Barbastro, Luis
- Candace
- Candia
- Candidus
- Candle, Paschal
- Candlemas
- Candles
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- Candlestick, Seven-Branch
- Candlestick, Triple
- Candlesticks
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- Canea
- Canelos and Macas
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- Canice, Saint
- Canisius, Henricus
- Canisius, Peter, Blessed
- Canisius, Theodorich
- Cano, Alonso
- Cano, Melchior
- Canon
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- Canopus
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- Canossa
- Canova, Antonio
- Cantate Sunday
- Canterbury
- Canticle
- Canticle of Canticles
- Canticle of Simeon
- Canticle of Zachary
- Cantius, Saint John
- Cantor
- Cantù, Cesare
- Canute
- Canute IV, Saint
- Capaccio and Vallo
- Capecelatro, Alfonso
- Capefigue, Baptiste-Honoré-Raymond
- Caperolo, Pietro
- Capgrave, John
- Cap Haïtien
- Capharnaum
- Capital Punishment
- Capitolias
- Capitulations, Episcopal and Pontifical
- Capocci, Gaetano
- Capponi, Gino, Count
- Capranica, Domenico
- Caprara, Giovanni Battista
- Capreolus, John
- Capsa
- Captain (in the Bible)
- Captivities of the Israelites
- Capua
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- Capuchin Friars Minor
- Capuciati
- Caquetá
- Carabantes, José de
- Caracalla
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- Caraffa, Vincent
- Caraites
- Caramuel y Lobkowitz, Juan
- Caravaggio (Michaelangelo Morigi)
- Carayon, Auguste
- Carbery, James Joseph
- Carbonari
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- Carcassonne
- Cardan, Girolamo
- Cardenas, Juan
- Cardica
- Cardinal
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- Carem
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- Cariati
- Caribs
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- Carli, Dionigi da Piacenza
- Carlisle
- Carlovingian Schools
- Carmel
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- Carmel, Feast of Our Lady of Mount
- Carmelite Order, The
- Carneiro, Melchior
- Carnoy, Jean-Baptiste
- Carochi, Horacio
- Caroline Books
- Caroline Islands
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- Caron, Reneé-Edouard
- Carpaccio, Vittore
- Carpasia
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- Carpi
- Carracci
- Carranza, Bartolomé
- Carranza, Diego
- Carreno de Miranda, Juan
- Carrera, Rafael
- Carrhae
- Carrière, Joseph
- Carrières, Louis de
- Carroll, Charles, of Carrollton
- Carroll, Daniel
- Carroll, John
- Cartagena
- Cartagena
- Carter, Venerable William
- Carthage, Saint
- Carthage
- Carthusian Order, The
- Cartier, Georges-Etienne
- Cartier, Jacques
- Carvajal, Bernardino Lopez de
- Carvajal, Gaspar de
- Carvajal, Juan
- Carvajal, Luis de
- Carvajal, Luisa de
- Carve, Thomas
- Caryll, John
- Carystus
- Casale Monferatto
- Casali, Giovanni Battista
- Casanare
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- Casas, Bartolomé de las
- Caserta
- Casey, John
- Casgrain, Henri Raymond
- Cashel
- Casimir, Saint
- Casium
- Casot, Jean-Jacques
- Cassander, George
- Cassani, Joseph
- Cassano all' Ionio
- Casserly, Patrick S.
- Cassian, John
- Cassidy, William
- Cassini, Giovanni Domenico
- Cassiodorus
- Casson, François Dollier de
- Cassovia
- Castabala
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- Castellammare di Stabia
- Castellaneta (Castania)
- Castellanos, Juan de
- Castelli, Benedetto
- Castelli, Pietro
- Castello, Giovanni Battista
- Castiglione, Baldassare
- Castiglione, Carlo Ottavio
- Castiglione, Giovanni Benedetto
- Castile and Aragon
- Castillejo, Cristóbal de
- Castner, Caspar
- Castoria
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- Castro, Guigo de
- Castro, Alphonsus de
- Castro Palao, Fernando
- Castro y Bellvis, Guillen de
- Casuistry
- Caswall, Edward
- Catacombs, Roman
- Catafalque
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- Catalonia
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- Categorical Imperative
- Category
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- Catherine of Siena, Saint
- Catherine of Sweden, Saint
- Catholic
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- Caunus
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- Cavanagh, James
- Cavazzi, Giovanni Antonio
- Cavedoni, Celestino
- Cavity, Altar
- Cavo, Andres
- Caxton, William
- Cayes
- Cayetano, Saint
- Caylus, Comte de
- Cazeau, Charles-Félix
- Ceadda, Saint
- Cebú
- Cecilia, Saint
- Cedar
- Cedar
- Cedd, Saint
- Cedes
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- Cefalù
- Ceillier, Rémi
- Celebret
- Celenderis
- Celestine I, Pope Saint
- Celestine II, Pope
- Celestine III, Pope
- Celestine IV, Pope
- Celestine V, Pope Saint
- Celestine Order
- Celestines
- Celibacy of the Clergy
- Cella
- Cellier, Elizabeth
- Cellites
- Celsus and Nazarius, Saints
- Celsus the Platonist
- Celtes, Conrad
- Celtic Rite, The
- Cemeteries
- Cemeteries in Law
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- Cenalis, Robert
- Ceneda
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- Census
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- Centuriators of Magdeburg
- Centurion
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- Ceolwulf
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- Ceramus
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- Certitude
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- Cervantes, Salazar Francisco
- Cervia
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- Cesarini, Giuliano
- Cesena
- Ceslaus, Saint
- Cestra
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- Ceylon
- Chabanel, Noel
- Chachapoyas
- Chad, Saint
- Chadwick, James
- Chaignon, Pierre
- Chair of Peter
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- Chalcedon, Council of
- Chaldean Christians
- Chalice
- Challoner, Richard
- Châlons-sur-Marne
- Cham, Chamites
- Chambéry
- Chamberlain
- Champlain, Samuel de
- Champney, Anthony
- Champollion, Jean-François
- Champs, Etienne Agard de
- Chanaan, Chanaanites
- Chanca, Diego Alvarez
- Chancel
- Chancery, Diocesan
- Chanel, Peter-Louis-Marie, Saint
- Changanacherry
- Chant, Gregorian
- Chant, Plain
- Chantal, Saint Jane Frances de
- Chantelou, Claude
- Chantry
- Chapeauville, Jean
- Chapel
- Chapelle, Placide-Louis
- Chaplain
- Chaplets (Prayer Beads)
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- Chapter
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- Chapter and Conventual Mass
- Character
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- Charadrus
- Chardon, Jean-Baptiste
- Chardon, Mathias
- Charette de la Contrie, Baron Athanase-Charles-Marie
- Chariopolis
- Charismata
- Charitable Bequests, Civil Law Concerning
- Charity and Charities
- Charity, Theological Virtue of
- Charity, Congregation of the Brothers of
- Charity, Sisters of, of St. Vincent de Paul
- Charity, Sisters of, of St. Vincent de Paul (New York)
- Charity, Sisters of, of St. Elizabeth
- Charity, Sisters of, (St. John, New Brunswick)
- Charity, Sisters of, of the Blessed Virgin Mary
- Charity, Sisters of, of Providence
- Charity, Sisters of, of Jesus and Mary
- Charity, Sisters of, of St. Louis
- Charity, Sisters of, of St. Paul
- Charity, Sisters of, of Our Lady Mother of Mercy
- Charity, Theological Virtue of
- Charlemagne
- Charlemagne and Church Music
- Charles V, Emperor
- Charles Borromeo, Saint
- Charles Martel
- Charleston
- Charlevoix, François-Xavier
- Charlottetown
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- Charron, Pierre
- Charterhouse
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- Chartres
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- Chartulary
- Chastel, Guigues du
- Chastellain, Georges
- Chastellain, Pierre
- Chastity
- Chasuble
- Chateaubriand, François-René
- Chatham
- Chaucer, Geoffrey
- Chaumonot, Pierre-Joseph
- Chauncy, Maurice
- Chauveau, Pierre-Joseph-Octave
- Chelm and Belz
- Cheminais de Montaigu, Timoléon
- Cherokee Indians
- Chersonesus
- Cherubim
- Cherubini, Maria Luigi Carlo Zenobio Salvatore
- Chester
- Cheverus, Jean-Louis Lefebvre de
- Chevreul, Michel-Eugène
- Cheyenne
- Chézy, Antoine-Léonard
- Chiabrera, Gabriello
- Chiapas
- Chiavari
- Chibchas
- Chicago, Archdiocese of
- Chichele, Henry
- Chichester
- Chicoutimi
- Chieregati, Francesco
- Chieti
- Chihuahua
- Chilapa
- Children of Mary
- Children of Mary of the Sacred Heart, The
- Chile
- Chimalpain, Domingo (San Anton y Muñon)
- China
- China, The Church in
- China, History of
- China, Martyrs in
- Chinooks
- Chioggia (Chiozza)
- Chios
- Chippewa Indians
- Chi-Rho (Labarum)
- Chiusi-Pienza
- Chivalry
- Choctaw Indians
- Choir
- Choir
- Choiseul, Etienne-François, Duc de
- Choiseul du Plessis-Praslin, Gilbert
- Cholonec, Pierre
- Chorepiscopi
- Choron, Alexandre-Etienne
- Chrism
- Chrismal, Chrismatory
- Chrismarium
- Christ, Jesus
- Christ, Agony of
- Christ, Character of
- Christ, Chronology of the Life of
- Christ, Early Historical Documents on
- Christ, Genealogy of
- Christ, Holy Name of
- Christ, Knowledge of
- Christ, Order of the Knights of
- Christ, Temptation of
- Christ, Virgin Birth of
- Christchurch
- Christendom
- Christendom, Union of
- Christian
- Christian Archaeology
- Christian Art
- Christian Brothers
- Christian Brothers of Ireland
- Christian Charity, Sisters of
- Christian Doctrine, Confraternity of
- Christian Instruction, Brothers of
- Christianity
- Christian Knowledge, Society for Promoting
- Christian Retreat, Congregation of
- Christina Alexandra
- Christine de Pisan
- Christine of Stommeln, Blessed
- Christmas
- Christology
- Christopher, Saint
- Christopher, Pope
- Christopher Numar of Forli
- Chrodegang, Saint
- Chromatius, Saint
- Chronicle of Eusebius
- Chronicon Paschale
- Chronicles (Paralipomenon), Books of
- Chronology, Biblical
- Chronology, General
- Chrysanthus and Daria, Saints
- Chrysogonus, Saint
- Chrysopolis
- Chrysostom, Saint John
- Chur
- Church, The
- Church and State
- Churching of Women
- Church Maintenance
- Chusai
- Chysoloras, Manuel
- Chytri
- Ciampini, Giovanni Giustino
- Ciasca, Agostino
- Ciborium
- Cibot, Pierre-Martial
- Ciboule, Robert
- Cibyra
- Ciccione, Andrea
- Cicognara, Leopoldo, Count
- Cid, El
- Cidyessus
- Cienfuegos
- Cignani Family
- Cimabue, Cenni di Pepo
- Cima da Conegliano, Giovanni Battista
- Cimbebasia
- Cincinnati
- Cincture
- Cinites
- Cinna
- Circesium
- Circumcision
- Circumcision, Feast of the
- Cisalpine Club
- Cisamus
- Cistercians
- Cistercian Sisters
- Cistercians in the British Isles
- Cîteaux, Abbey of
- Citation
- Citharizum
- Città della Pieve, Diocese of
- Città di Castello, Diocese of
- Ciudad Real
- Ciudad Rodrigo
- Cius
- Civil Allegiance
- Civil Authority
- Civil Marriage
- Cività Castellana, Orte, and Gallese
- Civitavecchia and Corneto, Diocese of
- Clairvaux, Abbey of
- Clandestinity (in Canon Law)
- Clare of Assisi, Saint
- Clare of Montefalco, Saint
- Clare of Rimini, Blessed
- Claret y Clará, Saint Antonio María
- Clark, William
- Claude de la Colombière, Saint
- Claudia
- Claudianus Mamertus
- Claudiopolis
- Claudiopolis
- Claver, Saint Peter
- Clavigero, Francisco Saverio
- Clavius, Christopher
- Clavius, Claudius
- Clayton, James
- Clazomenae
- Clean and Unclean
- Cleef, Jan van
- Cleef, Joost van
- Cleef, Martin van
- Clémanges, Mathieu-Nicolas Poillevillain de
- Clémencet, Charles
- Clemens, Franz Jacob
- Clemens non Papa
- Clement I, Pope Saint
- Clement II, Pope
- Clement III, Pope
- Clement IV, Pope
- Clement V, Pope
- Clement VI, Pope
- Clement VII, Pope
- Clement VIII, Pope
- Clement IX, Pope
- Clement X, Pope
- Clement XI, Pope
- Clement XII, Pope
- Clement XIII, Pope
- Clement XIV, Pope
- Clement, Caesar
- Clément, François
- Clement, John
- Clementines
- Clement Mary Hofbauer, Blessed
- Clement of Alexandria
- Clement of Ireland, Saint
- Clenock, Maurice
- Cleophas
- Clerestory
- Cleric
- Clericato, Giovanni
- Clericis Laicos
- Clerk, John
- Clerke, Agnes Mary
- Clerke, Ellen Mary
- Clerks Regular
- Clerks Regular of Our Saviour
- Clerks Regular of the Mother of God of Lucca
- Clermont
- Cletus, Pope Saint
- Cletus, Pope Saint
- Cleveland
- Clichtove, Josse
- Clifford, William
- Clifton
- Climent, José
- Clitherow, Saint Margaret
- Clogher
- Cloister
- Clonard, School of
- Clonfert
- Clonmacnoise, Abbey and School of
- Cloths, Altar
- Clotilda, Saint
- Clouet
- Clovesho, Councils of
- Clovio, Giorgio
- Clovis
- Cloyne, Diocese of
- Cluny, Congregation of
- Clynn, John
- Cobo, Bernabé
- Coccaleo, Viatora
- Cochabamba
- Cochem, Martin of
- Cochin, Diocese of
- Cochin, Jacques-Denis
- Cochin, Pierre-Suzanne-Augustin
- Cochlaeus, Johann
- Co-Consecrators
- Cocussus
- Codex
- Codex Alexandrinus
- Codex Amiatinus
- Codex Bezae
- Codex Ephraemi Rescriptus
- Codex Sinaiticus
- Codex Vaticanus
- Codrington, Thomas
- Co-education
- Coeffeteau, Nicolas
- Coelchu
- Coelde, Theodore
- Coemgen, Saint
- Coenred
- Coeur d'Alêne Indians
- Coffin, Edward
- Coffin, Robert Aston
- Cogitosus
- Cogolludo, Diego López de
- Cohen, Hermann
- Coimbatore, Diocese of
- Coimbra, Diocese of
- Coimbra, University of
- Colbert, Jean-Baptiste
- Cole, Henry
- Coleman, Edward
- Coleridge, Henry James
- Colet, John
- Coleti, Nicola
- Colette, Saint
- Colgan, John
- Colima
- Colin, Frédéric-Louis
- Colin, Jean-Claude-Marie
- Coliseum, The
- Collado, Diego
- Colle de Val d'Elsa
- Collect
- Collectarium
- Collections
- Collectivism
- College
- College (in Canon Law)
- College, Apostolic
- Collège de France, The
- Colleges, Roman
- Collegiate
- Colman, Saint, of Kilmacduagh
- Colman, Saint, of Templeshambo
- Colman Mac Lenine, Saint
- Colman, Saint, of Mayo
- Colman, Saint, of Dalaradia
- Colman, Saint Elo
- Colman, Saint MacCathbad
- Colman, Saint
- Colman, Walter
- Colmar, Joseph Ludwig
- Cologne
- Cologne, University of
- Colomba of Rieti, Blessed
- Colombia
- Colombière, Saint Claude de la
- Colombo
- Colombo, Mateo Realdo
- Colona, Blessed Margaret
- Colonia
- Colonia
- Colonna
- Colonna, Egidio
- Colonna, Giovanni Paolo
- Colonna, Vittoria
- Colonnade
- Colophon
- Colorado
- Colossae
- Colossians, Epistle to the
- Colours, Liturgical
- Columba, Saint
- Columba, Saint
- Columba of Sens, Saint
- Columba of Terryglass, Saint
- Columbanus, Saint
- Columbia University (Oregon)
- Columbus, Christopher
- Columbus, Knights of
- Columbus, Diocese of
- Column
- Comacchio
- Comana
- Comayagua
- Combefis, François
- Comboni, Daniel
- Comellas y Cluet, Antonio
- Comgall, Saint
- Commandments of the Church
- Commandments of God (The Ten Commandments)
- Commemoration (in Liturgy)
- Commendatory Abbot
- Commendone, Giovanni Francesco
- Commentaries on the Bible
- Commines, Philippe de
- Commissariat of the Holy Land
- Commissary Apostolic
- Commissions, Ecclesiastical
- Commodianus
- Commodus
- Common Life, Brethren of the
- Common Prayer, Book of
- Common Sense, Philosophy of
- Commune, Martyrs of the Paris
- Communicatio Idiomatum
- Communion, Frequent
- Communion, Holy
- Communion Antiphon
- Communion Bench
- Communion of Children
- Communion of Saints
- Communion of the Sick
- Communion Rail
- Communion under Both Kinds
- Communism
- Comnena, Anna
- Como
- Compagnie du Saint-Sacrement
- Compensation
- Compensation, Occult
- Competency, Privilege of
- Compiégne, Teresian Martyrs of
- Compline
- Compostela
- Compromise (in Canon Law)
- Conal, Saint
- Conan, Saint
- Concelebration
- Concepción
- Conceptionists
- Conceptualism, Nominalism, Realism
- Conciliation, Industrial
- Concina, Daniello
- Conclave
- Concordances of the Bible
- Concordat
- Concordat of 1801, The French
- Concordia, Diocese of
- Concordia, Diocese of
- Concubinage
- Concupiscence
- Concursus
- Condamine, Charles-Marie de la
- Condillac, Ettiene Bonnot de
- Condition
- Conecte, Thomas
- Conferences, Ecclesiastical
- Confession
- Confession, Lay
- Confession, Sacrament of
- Confession, Seal of
- Confessor
- Confirmation
- Confiteor
- Confraternity (Sodality)
- Confraternity of Christian Doctrine
- Confucianism
- Congo
- Congregatio de Auxiliis
- Congregationalism
- Congregational Singing
- Congregations, Roman
- Congresses, Catholic
- Congrua
- Congruism
- Conimbricenses
- Coninck, Giles de
- Connecticut
- Connolly, John
- Conon, Pope
- Conradin of Bornada
- Conrad of Ascoli, Blessed
- Conrad of Hochstadt
- Conrad of Leonberg
- Conrad of Marburg
- Conrad of Offida, Blessed
- Conrad of Piacenza, Saint
- Conrad of Saxony
- Conrad of Urach
- Conrad of Utrecht
- Conry, Florence
- Consalvi, Ercole
- Consanguinity (in Canon Law)
- Conscience
- Conscience, Examination of
- Conscience, Hendrik
- Consciousness
- Consecration
- Consent (in Canon Law)
- Consentius
- Conservator
- Consistory, Papal
- Constable, Cuthbert
- Constable, John
- Constance
- Constance, Council of
- Constantia
- Constantine, Pope
- Constantine (Cirta)
- Constantine Africanus
- Constantine the Great
- Constantine, Donation of
- Constantinople
- Constantinople, First Ecumenical Council of
- Constantinople, Second Ecumenical Council of
- Constantinople, Third Ecumenical Council of
- Constantinople, Fourth Ecumenical Council of
- Constantinople, Council of
- Constantinople, Council of, in Trullo
- Constantinople, Council of
- Constantinople, Councils of
- Constantinople, Councils of
- Constantinople, The Rite of
- Constantius, Flavius Julius
- Constitutions, Ecclesiastical
- Constitutions, Papal
- Consubstantiation
- Consultors, Diocesan
- Contant de la Molette, Philippe du
- Contarini, Gasparo
- Contarini, Giovanni
- Contemplation
- Contemplative Life
- Contenson, Vincent
- Continence
- Contingent
- Contract
- Contract, The Social
- Contractus, Hermann
- Contrition
- Contrition, Imperfect
- Contumacy (in Canon Law)
- Contzen, Adam
- Convent
- Convent Schools (Great Britain)
- Conventual and Chapter Mass
- Conventuals, Order of Friars Minor
- Conversano
- Conversi
- Conversion
- Convocation of the English Clergy
- Conwell, Henry
- Conza
- Cooktown
- Coombes, William Henry
- Copacavana
- Cope
- Copenhagen, University of
- Copernicus, Nicolaus
- Coppée, François Edouard Joachim
- Coptic Literature
- Coptic Persecutions
- Coptic Versions of the Bible
- Coptos
- Coquart, Claude-Godefroi
- Coracesium
- Corbie, Ambrose
- Corbie, Venerable Ralph
- Corbie, Monastery of
- Corbinian
- Corcoran, James Andrew
- Corcoran, Michael
- Cord, Confraternities of the
- Cordara, Guilo Cesare
- Cordell, Charles
- Cordier, Balthasar
- Cordova
- Cordova
- Cordova, Juan de
- Cordova, Pedro de
- Core, Dathan, and Abiron
- Corea
- Corfu
- Coria
- Corinth
- Corinthians, Epistles to the
- Coriolis, Gaspard-Gustave de
- Cork, Diocese of
- Cork, School of
- Corker, Maurus
- Cormac MacCuilenan
- Cornaro, Elena Lucrezia Piscopia
- Corneille, Jean-Baptiste
- Corneille, Michel, the Younger
- Corneille, Michel, the Elder
- Corneille, Pierre
- Cornelisz, Jacob
- Cornelius
- Cornelius, Pope
- Cornelius, Peter
- Cornelius and Companions, Ven. John
- Cornelius Cornelii a Lapide
- Cornely, Karl Josef Rudolph
- Corner Stone
- Cornet, Nicolas
- Cornice
- Cornillon, Abbey of
- Cornoldi, Giovanni Maria
- Coronado, Francisco Vasquez de
- Coronation
- Coronel, Gregorio Nuñez
- Coronel, Juan
- Corporal
- Corporation
- Corporation Act of 1661
- Corpus Christi, Feast of
- Corpus Juris Canonici
- Correction, Fraternal
- Correctories
- Corrigan, Michael
- Corrigan, Sir Dominic
- Corsica
- Corsini, Saint Andrew
- Cortés, Hernando
- Cortese, Giovanni Andrea
- Cortona
- Corvey, Abbey of
- Corycus
- Corydallus
- Cosa, Juan de la
- Cosenza
- Cosgrove, Henry
- Cosin, Edmund
- Cosmas
- Cosmas and Damian, Saints
- Cosmas Indicopleustes
- Cosmas of Prague
- Cosmati Mosaic
- Cosmogony
- Cosmology
- Cossa, Francesco
- Costa, Lorenzo
- Costadoni, Giovanni Domenico
- Costa Rica
- Coster, Francis
- Costume, Clerical
- Cosway, Maria
- Cotelier, Jean-Baptiste
- Cotenna
- Cotiaeum
- Coton, Pierre
- Cotrone
- Cottam, Blessed Thomas
- Coucy, Robert De
- Coudert, Frederick René
- Councils, Ecumenical
- Councils, General
- Councils, Plenary
- Counsels, Evangelical
- Counterpoint
- Counter-Reformation, The
- Court (in Scripture)
- Courtenay, William
- Courts, Ecclesiastical
- Cousin, Germain, Saint
- Cousin, Jean
- Coussemaker, Charles-Edmond-Henride
- Coustant, Pierre
- Coustou, Nicholas
- Coutances
- Couturier, Louis-Charles
- Covarruvias, Diego
- Covenant, Ark of the
- Covenanters
- Covetousness
- Covington
- Cowl
- {{Catholic Encyclopedia||ote mark up the word cuculla throughout the |{{{1}
- Coxcie, Michiel
- Coysevox, Charles-Antoine
- Cozza, Lorenzo
- Cozza-Luzi, Giuseppe
- Cracow
- Cracow, The University of
- Craigie, Pearl Mary Teresa
- Crashaw, Richard
- Crasset, Jean
- Craven, Augustus, Mrs.
- Crawford, Francis Marion
- Crayer, Gaspar de
- Creagh, Richard
- Creation
- Creation, Six Days of
- Creationism
- Credence
- Credi, Lorenzo di
- Cree
- Creed
- Creed, Apostles'
- Creed, Liturgical Use of
- Creed, Nicene
- Creeks
- Creighton University
- Crelier, Henri-Joseph
- Crema, Diocese of
- Cremation
- Cremona
- Crépieul, François
- Crescens
- Crescentia, Modestus, and Vitus, Saints
- Crescentius
- Crescimbeni, Giovanni Mario
- Cresconius
- Cressy, Hugh Paulinus Serenus
- Creswell, Joseph
- Crétin, Joseph
- Crétineau-Joly, Jacques
- Crèvecoeur, Hector St. John de
- Crib
- Crime, Impediment of
- Crisium
- Crispin, Milo
- Crispina, Saint
- Crispin and Crispinian, Saints
- Crispin of Viterbo, Blessed
- Criticism, Higher
- Criticism, Historical
- Criticism, Textual
- Crivelli, Carlo
- Croagh Patrick
- Croatia
- Croce, Giovanni
- Crockett, Venerable Ralph
- Croia
- Croke, Thomas William
- Crolly, William
- Cronan
- Crosier
- Crosiers, The
- Cross and Crucifix in Archaeology
- Cross and Crucifix in Liturgy
- Cross, Daughters of the
- Cross, Daughters of the Holy
- Cross, Daughters of the
- Cross, Sign of the
- Cross, The True
- Cross-Bearer
- Cross of Jesus, Brothers of the
- Crotus, Johann
- Crown, Franciscan
- Crown of Thorns
- Crown of Thorns, Feast of the
- Croyland, Abbey of
- Crucifix and Cross in Archaeology
- Crucifix and Cross in Liturgy
- Crucifix, Altar
- Cruelty to Animals
- Cruet
- Crusade, Bull of the
- Crusades
- Crutched Friars
- Cruz, Ramón de la
- Crypt
- Csanád
- Cuba
- Cuenca
- Cuenca
- Cuernavaca
- Cueva, Juan de la
- Culdees
- Cullen, Paul
- Cult, Disparity of
- Culm
- Cummings, Jeremiah Williams
- Cuncolim, Martyrs of
- Cunegundes, Blessed
- Cuneo, Diocese of
- Cuoq, André-Jean
- Cupola
- Curaçao
- Curate
- Curator
- Cura Animarum
- Curé d'Ars
- Cure of Souls
- Curia, Roman
- Curityba do Parana
- Curium
- Curley, James
- Curr, Joseph
- Curry, John
- Cursing
- Cursores Apostolici
- Cursor Mundi
- Curtain, Altar
- Curubis
- Cusae
- Cush
- Cuspinian, Johannes
- Custom (in Canon Law)
- Custos
- Cuthbert, Saint
- Cuthbert
- Cuthbert
- Cuyabá
- Cuyo, Virgin of
- Cuzco, Diocese of
- Cybistra
- Cyclades
- Cydonia
- Cyme
- Cynewulf
- Cynic School of Philosophy
- Cyprian of Toulon, Saint
- Cyprian and Justina, Saints
- Cyprian of Carthage, Saint
- Cyprus
- Cyrenaic School of Philosophy
- Cyrene
- Cyril and Methodius, Saints
- Cyril of Alexandria, Saint
- Cyril of Constantinople, Saint
- Cyril of Jerusalem, Saint
- Cyrrhus
- Cyrus and John, Saints
- Cyrus of Alexandria
- Cyzicus
- Czech Literature
- Dablon, Claude
- Dabrowski, Joseph
- Dacca
- Dacier, André
- Dacier, Anne
- Dagon
- Daguesseau, Henri-François
- Dahomey
- Dalberg, Adolphus von
- Dalgairns, John Dobree
- Dalila
- Dallas
- Dalley, William Bede
- Dalmatia
- Dalmatic
- Dalton, John
- Damão
- Damaraland
- Damascus
- Damasus I, Saint, Pope
- Damasus II, Pope
- Damberger, Joseph Ferdinand
- Damian and Cosmas, Saints
- Damien, Father (Joseph de Veuster)
- Damietta
- Dan
- Danaba
- Dance of Death
- Dancing
- Dandolo, Enrico
- Daniel
- Daniel, Anthony
- Daniel, Book of
- Daniel, Charles
- Daniel, Gabriel
- Daniel, John
- Daniel and Companions, Saint
- Daniel of Winchester
- Dansara
- Dante Alighieri
- Danti, Ignazio
- Danti, Vincenzo
- Dantine, Maurus
- Da Ponte, Lorenzo
- Darboy, Georges
- Dardanus
- Dardel, Jean
- Darerca, Saint
- Dareste de la Chavanne, Antoine-Elisabeth
- Darius and Chrysanthus, Saints
- Darnis
- Darras, Joseph-Epiphane
- Darrell, William
- Dates and Dating
- Daubrée, Gabriel-Auguste
- Daulia
- Daumer, Georg Friedrich
- D'Avenant, Sir William
- Davenport, Christopher
- Davenport
- David, Saint
- David, Armand
- David, Gheeraert
- David, King
- David of Augsburg
- David of Dinant
- David Scotus
- Davies, Venerable William
- Dávila Padilla
- Dawson, Aeneas McDonnell
- Day, George
- Day, John Charles, Sir
- Day of Atonement
- Dax, Diocese of
- Deaconesses
- Deacons
- Dead, Prayers for the
- Dead Sea
- Deaf, Education of the
- Dean
- Dean, William, Venerable
- Dease, Thomas
- Death, Dance of
- Death, Preparation for
- Death Penalty
- Debbora
- Debt
- Decalogue
- Decapolis
- Dechamps, Adolphe
- Dechamps, Victor Augustin Isidore
- Decius
- Decker, Hans
- Declaration, The Royal
- Decorations, Pontifical
- Decree
- Decretals, Papal
- Dedication
- Dedication, Feast of the
- Deduction
- Deer, Abbey of
- Defender of the Matrimonial Tie
- Definitions, Theological
- Definitor (in Canon Law)
- Definitors (in Religious Orders)
- Deger, Ernst
- Degradation
- Deharbe, Joseph
- Deicolus, Saint
- Dei gratia; Dei et Apostolicae Sedis gratia
- Deism
- Deity
- De La Croix, Charles
- Delacroix, Ferdinand-Victor-Eugène
- Delaroche, Hippolyte
- Delatores
- Delaware
- Delaware Indians
- Delcus
- Delegation
- Delfau, François
- Delfino, Pietro
- Delilah
- Delille, Jacques
- De Lisle, Ambrose Lisle March Phillipps
- Delisle, Guillaume
- De L'Orme, Philibert
- Delphine, Blessed
- Delrio, Martin Anton
- Delta of the Nile, Prefecture Apostolic of the
- Deluge
- Demers, Modeste
- Demetrius, Saint
- Demetrius
- Demiurge
- Democracy, Christian
- Demon
- Demoniacs
- Demonology
- Dempster, Thomas
- Denaut, Pierre
- Dénés
- Denifle, Heinrich Seuse
- Denis, Saint
- Denis, Johann Nepomuk Cosmas Michael
- Denis, Joseph
- Denman, William
- Denmark
- Denonville, Seigneur and Marquis de
- Dens, Peter
- Denunciation
- Denver
- Denys the Carthusian
- Denza, Francesco
- Denzinger, Heinrich Joseph Dominicus
- Deo Gratias
- De Paul University
- Deposition
- Deprés, Josquin
- De Profundis
- Derbe
- Dereser, Anton
- Derogation
- De Rossi, Giovanni Battista
- Derry
- Derry, School of
- Desains, Paul-Quentin
- Desault, Pierre-Joseph
- Descartes, René
- Deschamps, Eustache
- Deschamps, Nicolas
- Desclée, Henri and Jules
- Desecration
- Desert
- Desertion
- Deshon, George
- Desiderius
- Desiderius of Cahors, Saint
- Desmarets de Saint-Sorlin, Jean
- De Smet, Pierre-Jean
- Desolation, The Abomination of
- De Soto, Hernando
- Despair
- Despretz, César-Mansuète
- Desservants
- Desurmont, Achille
- Determinism
- Detraction
- Detré, William
- Detroit
- Deusdedit, Pope Saint
- Deusdedit, Saint
- Deusdedit, Cardinal
- Deus in Adjutorium Meum Intende
- Deuteronomy
- Deutinger, Martin
- Devas, Charles Stanton
- De Vere, Aubrey Thomas Hunt
- Devereux, John C.
- Devereux, Nicholas
- Devil
- Devil Worship
- Devil's Advocate
- Devolution
- Devoti, Giovani
- Devotions, Popular
- Deymann, Clementine
- Deza, Diego
- Dhuoda
- Diaconicum
- Diakovár
- Dialectic
- Diamantina
- Diana, Antonino
- Diano
- Diario Romano
- Diarmaid, Saint
- Dias, Bartolomeu
- Diaspora
- Díaz, Pedro
- Díaz del Castillo, Bernal
- Díaz de Solís, Juan
- Dibon
- Dicastillo, Juan de
- Dicconson, Edward
- Diceto, Ralph de
- Dichu, Saint
- Dicuil
- Didache
- Didacus, Saint
- Didascalia Apostolorum
- Didon, Henri
- Didot
- Didron, Adolphe-Napoleon
- Didymus the Blind
- Diego y Moreno, Francisco Garcia
- Diekamp, Wilhelm
- Diemoth
- Diepenbeeck, Abraham van
- Diepenbrock, Melchior, Baron von
- Dieringer, Franz Xaver
- Dies Irae
- Dietenberger, Johann
- Diether of Isenburg
- Dietrich von Nieheim
- Digby, George
- Digby, Kenelm Henry
- Digby, Sir Everard
- Digby, Sir Kenelm
- Digne
- Dignitary, Ecclesiastical
- Dijon
- Dillingen, University of
- Dillon, Arthur-Richard
- Dimissorial Letters
- Dingley, Ven. Sir Thomas
- Dinooth, Saint
- Diocaesarea
- Diocesan Chancery
- Diocese
- Diocese (Supplemental List)
- Dioclea
- Diocletian
- Diocletianopolis
- Diodorus of Tarsus
- Diognetus, Epistle to
- Dionysias
- Dionysius, Pope Saint
- Dionysius, Saint
- Dionysius Exiguus
- Dionysius of Alexandria
- Dionysius the Pseudo-Areopagite
- Dioscorus
- Dioscorus
- Diplomatics, Papal
- Diptych
- Direction, Spiritual
- Directories, Catholic
- Discalced
- Discernment of Spirits
- Disciple
- Disciples of Christ
- Discipline, Ecclesiastical
- Discipline of the Secret
- Discussions, Religious
- Disibod, Saint
- Disparity of Cult
- Disparity of Worship
- Dispensation
- Dispersion of the Apostles
- Dissen, Heinrich von
- Dissentis, Abbey of
- Distraction
- Distributions
- Dithmar
- Dives
- Divination
- Divine Attributes
- Divine Charity, Society of
- Divine Charity, Sisters of
- Divine Charity, Daughters of
- Divine Compassion, Institute of the
- Divine Nature and Attributes, The
- Divine Office
- Divine Providence, Sisters of
- Divine Redeemer, Daughters of the
- Divine Savior, Society of the
- Divine Word, Society of the
- Divisch, Procopius
- Divorce (in Moral Theology)
- Divorce (in Civil Jurisprudence)
- Dixon, Joseph
- Dlugosz, Jan
- Dobmayer, Marian
- Dobrizhoffer, Martin
- Docetae
- Docimium
- Doctor
- Doctors, Surnames of Famous
- Doctors of the Church
- Doctrine, Christian
- Doctrine of Addai
- Dogma
- Dogmatic Fact
- Dogmatic Theology
- Dogmatic Theology, History of
- Dolbeau, Jean
- Dolci, Carlo
- Doliche
- Döllinger, Johann Joseph Ignaz von
- Dolman, Charles
- Dolores Mission
- Dolphin
- Dome
- Domenech, Emmanuel-Henri-Dieudonne
- Domenechino
- Domesday Book
- Domicile
- Dominic, Saint
- Dominical Letter
- Dominican Republic
- Dominic of Prussia
- Dominic of the Mother of God
- Dominicans
- Dominici, Blessed Giovanni
- Dominis, Marco Antonio de
- Dominus Vobiscum
- Domitian
- Domitilla and Pancratius, Nereus and Achilleus, Saints
- Domitiopolis
- Domnus Apostolicus
- Don Bosco
- Donahoe, Patrick
- Donatello Di Betto Bardi
- Donation (in Canon Law)
- Donation (in Civil Law)
- Donation of Constantine
- Donatists
- Donatus of Fiesole
- Donders, Peter
- Dongan, Thomas
- Donlevy, Andrew
- Donnan, Saint
- Donner, Georg Raphael
- Donnet, Ferdinand-François-Auguste
- Donoso Cortés, Juan Francesco Maria de la Saludad
- Donus, Pope
- Doorkeeper
- Dora
- Dorchester, Abbey of
- Doré, Pierre
- Doria, Andrea
- Döring, Matthias
- Dorman, Thomas
- Dornin, Bernard
- Dorothea, Saint
- Dorsey, Anne Hanson
- Dorylaeum
- Dositheans
- Dosquet, Pierre-Herman
- Dossi, Giovanni
- Dotti, Blessed Andrea
- Douai
- Douay Bible
- Double Altar
- Double Monasteries
- Doubt
- Douglas, Gavin
- Doutreleau, Stephen
- Dove
- Dowdall, George
- Dowdall, James
- Dower
- Dower, Religious
- Down and Connor
- Downside Abbey
- Doxology
- Doyle, James Warren
- Doyle, John
- Doyle, Richard
- Drach, David Paul
- Drachma
- Dracontius, Blossius Aemilius
- Drane, Augusta Theodosia
- Dreams, Interpretation of
- Drechsel, Jeremias
- Dresden
- Dreves, Lebrecht Blücher
- Drevet Family, The
- Drexel, Francis Anthony
- Drexel, Jeremias
- Drey, Johann Sebastian von
- Dromore
- Drostan, Saint
- Droste-Vischering, Clemens August von
- Druidism
- Druillettes, Gabriel
- Drumgoole, John C.
- Drury, Robert
- Drusilla
- Drusipara
- Druys, Jean
- Druzbicki, Gaspar
- Druzes
- Dryburgh Abbey
- Dryden, John
- Dualism
- Dublin
- Dubois, Guillaume
- Dubois, Jean-Antoine
- Dubois, John
- Dubourg, Louis-Guillaume-Valentin
- Dubric, Saint
- Dubuque
- Duc, Fronton du
- Du Cange, Charles Dufresne
- Duccio di Buoninsegna
- Duchesne, Philippine-Rose
- Duckett, Ven. James
- Du Coudray, Philippe-Charles-Jean-Baptiste-Tronson
- Duckett, John, Venerable
- Ducrue, Francis Bennon
- Dudik, Beda Franciscus
- Duel
- Duffy, Sir Charles Gavan
- Duhamel, Jean-Baptiste
- Du Lhut Daniel Greysolon, Sieur
- Dulia
- Duluth
- Dumas, Jean-Baptiste
- Dumetz, Francisco
- Dumont, Hubert-André
- Dumoulin, Charles
- Dunbar, William
- Dunchadh, Saint
- Dundrennan, Abbey of
- Dunedin
- Dunfermline, Abbey of
- Dungal
- Dunin, Martin von
- Dunkeld
- Dunkers
- Duns Scotus, Blessed John
- Dunstan, Saint
- Dupanloup, Félix-Antoine-Philibert
- Duperron, Jacques-Davy
- Dupin, Louis Ellies
- Dupin, Pierre-Charles-François
- Duponceau, Peter Stephen
- Duprat, Antoine & Guillaume
- Dupré, Giovanni
- Dupuytren, Baron Guillaume
- Duquesnoy, François
- Duran, Narcisco
- Durand Ursin
- Durandus, William
- Durandus, William, the Younger
- Durandus of Saint-Pourçain
- Durandus of Troarn
- Durango
- Durazzo
- Durbin, Elisha John
- Dürer, Albrecht
- Durham
- Durham Rite
- Durrow, School of
- Duty
- Duvergier de Hauranne, Jean
- Duvernay, Ludger
- Dwight, Thomas
- Dyck, Antoon (Anthonis) Van
- Dymoke, Robert
- Dymphna, Saint
- Dynamism
- Eadmer
- Eanbald I
- Eanbald II
- East Indies, Patriarchate of the
- Easter
- Easter Controversy
- Eastern Churches
- Eastern Schism
- Easterwine
- Easton, Adam
- Eata, Saint
- Ebbo
- Ebendorfer, Thomas
- Eberhard, Matthias
- Eberhard of Ratisbon
- Ebermann, Veit
- Ebionites
- Ebner
- Ecclesiastes
- Ecclesiastical Addresses
- Ecclesiastical Architecture
- Ecclesiastical Archives
- Ecclesiastical Art
- Ecclesiastical Buildings
- Ecclesiastical Forum
- Ecclesiasticus
- Eccleston, Samuel
- Eccleston, Thomas of
- Echard, Jacques
- Echave, Baltasar de
- Echinus
- Echternach, Abbey of
- Echter von Mespelbrunn, Julius
- Eck, Johann
- Eckart, Anselm
- Eckebert
- Eckhart, Johann Georg von
- Eckhart, Meister
- Eckhel, Joseph Hilarius
- Eclecticism
- Economics
- Ecstasy
- Ecuador
- Ecumenical Councils
- Ecumenism
- Edda
- Edelinck
- Eden, Garden of
- Edesius and Frumentius
- Edessa
- Edgeworth, Henry Essex
- Edinburgh
- Editions of the Bible
- Edmund, Congregation of Saint
- Edmund Arrowsmith, Venerable
- Edmund Campion, Saint
- Edmund Rich, Saint
- Edmund the Martyr, Saint
- Education
- Educational Association, The Catholic
- Education of the Blind
- Education of the Deaf
- Edward III
- Edward Powell, Blessed
- Edward the Confessor, Saint
- Edward the Martyr, Saint
- Edwin, Saint
- Edwy
- Egan, Boetius
- Egan, Michael
- Egbert, Saint
- Egbert
- Egbert, Archbishop of Trier
- Egbert, Archbishop of York
- Egfrid
- Eginhard
- Egloffstein, Frederick W. von
- Egmont, Lamoral, Count of
- Egoism
- Eguiara y Eguren, Juan José
- Egwin, Saint
- Egypt
- Egyptian Church Ordinance
- Eichendorff, Josef Karl Benedikt
- Eichstätt
- Eimhin, Saint
- Einhard
- Einsiedeln, Abbey of
- Eisengrein, Martin
- Eithene, Saint
- Eithne, Saint
- Ekkehard
- Ekkehard of Aura
- Elaea
- Elba
- Elbel, Benjamin
- Elcesaites
- El Cid
- Elder, George
- Elder, William Henry
- Eleazar
- Elect
- Election
- Election, Papal
- Eleutherius, Pope Saint
- Eleutherius, Saint
- Eleutheropolis
- Elevation, The
- El Greco
- Elhuyar y de Suvisa, Fausto de
- Eli
- Elias
- Elias of Cortona
- Elias of Jerusalem
- Elie de Beaumont, Jean-Baptiste-Armand-Louis-Léonce
- Eligius, Saint
- Elijah
- Elined, Saint
- Eliseus
- Elisha
- Elishé
- Eliud, Saint
- Elizabeth
- Elizabeth Ann Seton, Saint
- Elizabeth, Sisters of Saint
- Elizabeth Associations
- Elizabeth of Hungary, Saint
- Elizabeth of Portugal, Saint
- Elizabeth of Reute, Saint
- Elizabeth of Schönau, Saint
- Ellis, Philip Michael
- Ellwangen Abbey
- Elohim
- Elphege, Saint
- Elphin
- Elusa
- Elvira, Council of
- Ely
- Elzéar of Sabran
- Emanationism
- Emancipation, Ecclesiastical
- Ember Days
- Embolism
- Embroidery
- Emerentiana, Saint
- Emery, Jacques-André
- Emesa
- Emigrant Aid Societies
- Emiliana and Trasilla, Saints
- Emiliani, Saint Jerome
- Emmanuel
- Emmaus
- Emmeram, Saint
- Emmeram, Saint, Abbey of
- Emmerich, Anne Catherine
- Empiricism
- Ems, Congress of
- Emser, Hieronymus
- Encina, Juan de la
- Enciso, Diego Ximenez de
- Enciso, Martín Fernández de
- Encolpion
- Encratites
- Encyclical
- Encyclopedia
- Encyclopedists
- Endlicher, Stephan Ladislaus
- Endowment
- Energy, The Law of Conservation of
- Engaddi
- Engel, Ludwig
- Engelberg, Abbey of
- Engelbert of Cologne, Saint
- Engelbert
- Engelbrechtsen, Cornelis
- England (Before 1066)
- England (1066-1558)
- England (After 1558)
- England, John
- Englefield, Sir Henry Charles, Bart.
- English College, The, in Rome
- English Confessors and Martyrs (1534-1729)
- English Hierarchy, Reorganization of the
- English Literature
- English Revolution of 1688
- Ennodius, Magnus Felix
- Enoch
- Enoch, Book of
- Ensingen, Ulrich
- Entablature
- Enthronization
- Envy
- Eoghan, Saints
- Epact
- Eparchy
- Epée, Charles-Michel de l'
- Eperies
- Ephesians, Epistle to the
- Ephesus
- Ephesus, Council of
- Ephesus, Robber Council of
- Ephesus, Seven Sleepers of
- Ephod
- Ephraem, Saint
- Ephraemi Rescriptus, Codex
- Ephraim of Antioch
- Epicureanism
- Epiklesis
- Epimachus and Gordianus, Saints
- Epiphania
- Epiphanius
- Epiphanius of Constantinople
- Epiphanius of Salamis
- Epiphany
- Episcopalians
- Episcopal Subsidies
- Epistemology
- Epistle (in Scripture)
- Epping, Joseph
- Erasmus, Desiderius
- Erastus and Erastianism
- Erbermann, Veit
- Ercilla y Zúñiga, Alonso de
- Erconwald, Saint
- Erdeswicke, Sampson
- Erdington Abbey
- Erhard of Ratisbon, Saint
- Erie
- Erin, The Twelve Apostles of
- Eriugena, John Scotus
- Ermland
- Ernakulam, Vicariate Apostolic of
- Ernan, Saints
- Ernst of Hesse-Rheinfels
- Ernulf
- Errington, William
- Error
- Erskine, Charles
- Erthal, Franz Ludwig von
- Erthal, Friedrich Karl Joseph, Freiherr von
- Erwin of Steinbach
- Erythrae
- Erzerum (Theodosiopolis)
- Esau
- Esch, Nicolaus van
- Eschatology
- Escobar, Marina de
- Escobar y Mendoza, Antonio
- Escorial, The
- Esdras
- Esglis, Louis-Philippe Mariauchau d'
- Eskil
- Eskimo
- Esnambuc, Pierre Belain, Sieur d'
- ESP
- Espejo, Antonio
- Espen, Zeger Bernhard van
- Espence, Claude D'
- Espinel, Vincent
- Espinosa, Alonso De
- Espousals
- Espousals of the Blessed Virgin Mary
- Essence and Existence
- Essenes
- Est, Willem Hessels van
- Establishment, The
- Estaing, Comte d'
- Esther
- Estiennot de la Serre, Claude
- Eternity
- Ethelbert, Saint
- Ethelbert, Saint
- Ethelbert
- Etheldreda, Saint
- Ethethard
- Ethelwold, Saint
- Etherianus, Hugh and Leo
- Ethics
- Ethiopia
- Etschmiadzin
- Euaria
- Eucarpia
- Eucharist, Introduction to the
- Eucharist, as a Sacrament
- Eucharist, as a Sacrifice
- Eucharist, Early Symbols of the
- Eucharist, Real Presence of Christ in
- Eucharistic Congresses
- Eucharistic Prayer
- Eucharius, Saint
- Eucherius, Saint
- Euchologion
- Eudes, Blessed Jean
- Eudists
- Eudocia
- Eudoxias
- Eugendus, Saint
- Eugene I, Saint, Pope
- Eugene II, Pope
- Eugene III, Pope
- Eugene IV, Pope
- Eugenics
- Eugenius I
- Eugenius II (the Younger)
- Eugenius of Carthage, Saint
- Eulalia of Barcelona, Saint
- Eulogia
- Eulogius of Alexandria, Saint
- Eulogius of Cordova, Saint
- Eumenia
- Eunan, Saint
- Eunomianism
- Euphemius of Constantinople
- Euphrasia, Saint
- Euphrosyne, Saint
- Euroea
- Europe
- Europus
- Eusebius, Saint
- Eusebius, Saint
- Eusebius, Saint
- Eusebius, Saint, Pope
- Eusebius, Chronicle of
- Eusebius Bruno
- Eusebius of Alexandria
- Eusebius of Caesarea
- Eusebius of Dorylaeum
- Eusebius of Laodicea
- Eusebius of Nicomedia
- Eustace, Saint
- Eustace, John Chetwode
- Eustace, Maurice
- Eustachius, Bartolomeo
- Eustachius and Companions, Saints
- Eustathius, Saint
- Eustathius of Sebaste
- Eustochium Julia, Saint
- Euthalius
- Euthanasia
- Euthymius, Saint
- Eutropius of Valencia
- Eutyches
- Eutychianism
- Eutychianus, Saint, Pope
- Eutychius I
- Eutychius
- Evagrius
- Evagrius
- Evangeliaria
- Evangelical Alliance, The
- Evangelical Church
- Evangelical Counsels
- Evangelist
- Evaristus, Pope Saint
- Eve
- Eve of a Feast
- Evesham Abbey
- Evil
- Evin, Saint
- Evodius
- Evolution, Catholics and
- Evolution, History and Scientific Foundation of
- Evora
- Evreux
- Ewald, Saints
- Ewin, Saint
- Ewing, Thomas
- Ex Cathedra
- Examination
- Examination of Conscience
- Examiners, Apostolic
- Examiners, Synodal
- Exarch
- Excardination and Incardination
- Exclusion, Right of
- Excommunication
- Executor, Apostolic
- Exedra
- Exegesis, Biblical
- Exemption
- Exequatur
- Exeter, Ancient Diocese of
- Exmew, Blessed William
- Exodus (See Pentateuch)
- Exorcism
- Exorcist
- Expectation of the Blessed Virgin Mary
- Expectative
- Expeditors, Apostolic
- Exposition of the Blessed Sacrament
- Extension
- Extension Society, The Catholic Church
- Extra-Sensory Perception (ESP)
- Extravagantes
- Extreme Unction
- Exul Hibernicus
- Exultet
- Exuperius, Saint
- Eyb, Albrecht von
- Eyck, Hubert and Jan van
- Eycken, Jean Baptiste van
- Eymard, Venerable Pierre-Julien
- Eymeric, Nicolas
- Eyre, Thomas
- Eyston, Charles
- Ezechias
- Ezekiel
- Ezion-geber
- Eznik
- Ezra
- Ezzo
- Faa di Bruno, Francesco
- Faber, Felix
- Faber, Frederick William
- Faber, Johann
- Faber, Johann
- Faber, Johann Augustanus
- Faber, Matthias
- Faber, Peter, Saint
- Faber, Philip
- Fabian, Pope Saint
- Fabiola, Saint
- Fabre, Joseph
- Fabri, Honoré
- Fabri, Philip
- Fabriano and Matelica
- Fabrica Ecclesiae
- Fabricius, Hieronymus
- Fabyan, Robert
- Façade
- Facciolati, Jacopo
- Fact, Dogmatic
- Faculties, Canonical
- Faculties of the Soul
- Facundus of Hermiane
- Faenza
- Fagnani, Prospero
- Fagnano, Guilio Carlo de' Toschi di
- Faillon, Etienne-Michel
- Faith
- Faith, Hope, and Charity (Saints)
- Faith, The Rule of
- Faithful, The
- Falco, Juan Conchillos
- Faldstool
- Falkner, Thomas
- Fall River
- Fallopio, Gabriello
- Falloux du Coudray
- False Decretals
- Falsity
- Famagusta
- Familiars
- Family
- Fano
- Fanon
- Faraud, Henri
- Farfa, Abbey of
- Fargo
- Faribault, George-Barthélemy
- Faribault, Jean-Baptiste
- Farinato, Paolo
- Faringdon, Blessed Hugh
- Farlati, Daniele
- Farnese, Alessandro
- Faro
- Faroe Islands
- Fast
- Fatalism
- Fate
- Fathers of the Church
- Fathers of Mercy, The
- Faye, Hervé-Auguste-Etienne-Albann
- Faunt, Lawrence Arthur
- Fauriel, Charles-Claude
- Faustinus and Jovita, Saints
- Faustus of Riez
- Faversham Abbey
- Fathers, The Apostolic
- Fear (in Canon Law)
- Fear (from a Moral Standpoint)
- Feast of Fools
- Feasts, Ecclesiastical
- Febronianism
- Feckenham, John de
- Feder, Johann Michael
- Feilding, Rudolph William Basil
- Feilmoser, Andreas Benedict
- Felbiger, Johann Ignaz von
- Felician and Primus, Saints
- Felician Sisters, O.S.F.
- Felicissimus
- Felicitas, Saint
- Felicitas and Perpetua, Saints
- Felix I, Pope Saint
- Felix II
- Felix III (II), Pope Saint
- Felix IV (III), Pope Saint
- Felix V
- Félix, Célestin Joseph
- Felix and Adauctus, Saints
- Felix and Nabor, Saints
- Felix of Cantalice, Saint
- Felix of Nola, Saint
- Felix of Valois, Saint
- Feller, François-Xavier de
- Feneberg, Johann Michael Nathanael
- Fénelon, François de Salignac de la Mothe-
- Fenn, John
- Ferber, Nicolaus
- Ferdinand, Blessed
- Ferdinand II
- Ferdinand III, Saint
- Ferdinando, Luigi, Count de Marsigli
- Ferentino, Diocese of
- Fergus, Saints
- Feria
- Ferland, Jean-Baptiste-Antoine
- Fermo, Archdiocese of
- Fernández, Antonio
- Fernández, Juan
- Fernández de Palencia, Diego
- Ferns
- Ferrara
- Ferrari, Gaudenzio
- Ferraris, Lucius
- Ferre, Vicente
- Ferreira, Antonio
- Ferrer, Rafael
- Ferrer, Saint Vincent
- Ferrières, Abbey of
- Ferstel, Heinrich, Freiherr von
- Fesch, Joseph
- Fessler, Josef
- Fetherston, Blessed Richard
- Feti, Domenico
- Fetishism
- Feuardent, François
- Feuchtersleben, Baron Ernst von
- Feudalism
- Feuillants
- Feuillet, Louis
- Féval, Paul-Henri-Corentin
- Feyjóo y Montenegro, Benito Jerónimo
- Fiacc, Saint
- Fiacre, Saint
- Ficino, Marsilio
- Ficker, Julius
- Fideism
- Fidelis of Sigmaringen, Saint
- Fiesole
- Fiji, Vicariate Apostolic of
- Filby, Blessed William
- Figueroa, Francisco de
- Figueroa, Francisco García de la Rosa
- Filelfo, Franscesco
- Filial Church
- Filicaja, Vincenzo da
- Filioque
- Fillastre, Guillaume
- Filliucci, Vincenzo
- Filliucius, Felix
- Final Perseverance
- Finan, Saint
- Finbarr, Saint
- Finch, Ven. John
- Finglow, Ven. John
- Finland
- Finotti, Joseph M.
- Finnian of Moville, Saint
- Fintan, Saints
- Fioretti di San Francesco d'Assisi
- Fire, Liturgical Use of
- Firmament
- Firmicus Maternus
- Firmilian
- First-Born
- First-Fruits
- Fiscal Procurator
- Fischer, Antonius
- Fish, Symbolism of the
- Fisher, Philip
- Fisherman, The Ring of the
- Fitter, Daniel
- Fitton, James
- Fitzalan, Henry
- FitzGibbon, Catherine
- Fitzherbert, Maria Anne
- Fitzherbert, Anthony, Sir
- Fitzherbert, Thomas
- Fitzpatrick, William John
- Fitzralph, Richard
- Fitzsimon, Henry
- Fitz-Simons, Thomas
- Fixlmillner, Placidus
- Fizeau, Armand-Hippolyte-Louis
- Flabellum
- Flaccilla, Aelia
- Flagellants
- Flagellation
- Flaget, Benedict Joseph
- Flanagan, Thomas Canon
- Flanders
- Flandrin, Jean-Hippolyte
- Flathead Indians
- Flathers, Ven. Mathew
- Flavia Domitilla
- Flavian, Saint
- Flavias
- Flavigny, Abbey of
- Flaviopolis
- Fléchier, Esprit
- Flemael, Bertholet
- Fleming, Patrick
- Fleming, Richard
- Fleming, Thomas
- Fletcher, John
- Flete, William
- Fleuriot, Zénaide-Marie-Anne
- Fleury, Abbey of
- Fleury, André-Hercule de
- Flodoard
- Flood of Noah
- Floreffe, Abbey of
- Florence
- Florence, Council of
- Florence of Worcester
- Florentina, Saint
- Flórez, Enrique
- Florian, Jean-Pierre Claris, Chevalier de
- Florians, The
- Florida
- Florilegia
- Florus
- Floyd, John
- Fogaras
- Foggia
- Foillan, Saint
- Folengo, Teofilo
- Foley, Henry
- Foligno
- Foliot, Gilbert
- Folkestone Abbey
- Fonseca, José Ribeiro da
- Fonseca, Pedro Da
- Fonseca Soares, Antonio da
- Fontana, Carlo
- Fontana, Domenico
- Fontana, Felice
- Fontbonne, Jeanne
- Fonte-Avellana
- Fontenelle, Abbey of
- Fontevrault, Order and Abbey of
- Fonts, Holy Water
- Fools, Feast of
- Foppa, Ambrogio
- Forbes, John
- Forbin-Janson, Comte de Charles-Auguste-Marie-Joseph
- Forcellini, Egidio
- Ford, Blessed Thomas
- Fordham University
- Foreman, Andrew
- Forer, Laurenz
- Foresters, Catholic Orders of
- Forgery, Forger
- Forli
- Form
- Formby, Henry
- Formosus, Pope
- Formularies
- Forrest, William
- Förster, Arnold
- Forster, Fobrenius
- Forster, Thomas Ignatius Maria
- Fort Augustus Abbey
- Fortaleza, Diocese of
- Fortescue, Blessed Adrian
- Fortitude
- Fortunato of Brescia
- Fortunatus
- Fort Wayne
- Forty Hours' Devotion
- Forty Martyrs
- Forum, Ecclesiastical
- Fossano
- Fossombrone
- Fossors
- Foster, John Gray
- Fothad, Saint
- Fouard, Constant
- Foucault, Jean-Bertrand-Léon
- Foulque de Neuilly
- Foundation
- Foundling Asylums
- Fountains Abbey
- Fouquet, Jehan
- Four Crowned Martyrs
- Four Masters, Annals of the
- Fowler, John
- Foxe's Book of Martyrs
- Fra Angelico
- Fractio Panis
- France
- Franceschini, Marc' Antonio
- Frances d'Amboise, Blessed
- Frances of Rome, Saint
- Franchi, Ausonio
- Francia
- Francis I
- Francis, Rule of Saint
- Francis Borgia, Saint
- Francis Caracciolo, Saint
- Francis de Geronimo, Saint
- Francis de Sales, Saint
- Francis of Assisi, Saint
- Francis Ingleby, Venerable
- Francis of Fabriano, Blessed
- Francis of Paula, Saint
- Francis of Vittoria
- Francis Regis Clet, Blessed
- Francis Solanus, Saint
- Francis Xavier, Saint
- Franciscan Crown
- Franciscan Order
- Franck, Kasper
- Franco, Giovanni Battista
- Frank, Michael Sigismund
- Frankenberg
- Frankfort, Council of
- Frankfort-on-the-Main
- Franks, The
- Franzelin, Johann Baptist
- Frascati
- Frassen, Claude
- Fraternal Correction
- Fraticelli
- Fraud
- Fraunhofer, Joseph von
- Frayssinous, Denis de
- Fréchette, Louis-Honoré
- Fredegarius
- Fredegis of Tours
- Frederick I (Barbarossa)
- Frederick II
- Fredoli, Berenger
- Free Church of Scotland
- Free Will
- Freeman, Ven. William
- Freemasonry
- Free-Thinkers
- Fregoso, Federigo
- Freiburg
- Fréjus
- Fremin, James
- French, Nicholas
- French Academy, The
- French Catholics in the United States
- French Concordat of 1801, The
- French Literature
- French Revolution
- Freppel, Charles-Emile
- Frequent Communion
- Fresnel, Augustin-Jean
- Friar
- Friars Minor, Order of
- Fribourg, University of
- Fridelli, Xavier Ehrenbert
- Frideswide, Saint
- Fridolin, Saint
- Friedrich von Hausen
- Friends, Society of
- Friends of God
- Frigolet, Abbey of
- Fringes (in Scripture)
- Fritz, Samuel
- Froissart, Jean
- Fromentin, Eugène
- Frontal, Altar
- Frontenac, Louis de Baude
- Frowin, Blessed
- Fructuosus of Braga, Saint
- Fructuosus of Tarragona, Saint
- Fuchs, Johann Nepomuk von
- Führich, Joseph
- Fulbert of Chartres
- Fulcran, Saint
- Fulda
- Fulgentius, Saint
- Fulgentius, Saint
- Fulgentius Ferrandus
- Fullerton, Lady Georgiana Charlotte
- Fullo, Peter
- Fumo, Bartolommeo
- Funchal
- Fundamental Articles
- Funeral Dues
- Funeral Pall
- Fünfkirchen
- Funk, Franz Xaver von
- Furness Abbey
- Furni
- Furniss, John
- Fursey, Saint
- Fürstenberg, Franz Friedrich Wilhelm von
- Fussola
- Fust, John
- Fytch, William Benedict
- Gabala
- Gabbatha
- Gaboon
- Gabriel the Archangel, Saint
- Gabriel, Brothers of Saint
- Gabriel Possenti, Blessed
- Gabriel Sionita
- Gad
- Gadara
- Gaddi, Agnolo, Giovanni, and Taddeo
- Gaeta
- Gaetano, Saint
- Gagarin, Ivan Sergejewitch
- Gagliardi, Achille
- Gahan, William
- Gaillard, Claude Ferdinand
- Gal, Saint
- Galantini, Ippolito, Blessed
- Galatians, Epistle to the
- Galatino, Pietro Colonna
- Galerius, Valerius Maximianus
- Galien, Joseph
- Galilee
- Galilei, Alessandro
- Galilei, Galileo
- Galitzin, Elizabeth
- Gall, Saint
- Gall, Abbey of Saint
- Galla, Saint
- Galla
- Gallait, Louis
- Galland, Antoine
- Gallandi, Andrea
- Galle
- Gallego, Juan Nicasio
- Galletti, Pietro Luigi
- Gallia Christiana
- Gallicanism
- Gallican Rite, The
- Gallicanus, Saints
- Gallienus, Publius Licinius Egnatius
- Gallifet, Joseph de
- Gallipoli
- Gallitzin, Adele Amalie
- Gallitzin, Demetrius Augustine
- Galloway, Diocese of
- Galluppi, Pasquale
- Galura, Bernhard
- Gallwey, Peter
- Galtelli-Nuoro
- Galvani, Luigi
- Galveston
- Galway and Kilmacduagh
- Gama, Vasco da
- Gamaliel
- Gamans, Jean
- Gambling
- Gams, Pius Bonifacius
- Gandolphy, Peter
- Gangra
- Gansfort, John Wessel
- Gap
- García, Anne
- Garcia, Saint Gonsalo
- García Moreno, Gabriel
- Garcilasso de la Vega
- Garcilasso de la Vega
- Gardellini, Aloisio
- Garesché, Julius Peter
- Garet, Jean
- Gargara
- Garin, André
- Garland
- Garland, John
- Garlick, Venerable Nicholas
- Garneau, François-Xavier
- Garnet, Henry
- Garnet, Saint Thomas
- Garnier, Charles
- Garnier, Jean
- Garnier, Julien
- Garrucci, Raffaele
- Garzon
- Gaspare del Bufalo, Blessed
- Gaspe, Philippe-Aubert de
- Gassendi, Pierre
- Gasser von Valhorn, Joseph
- Gassner, Johann Joseph
- Gaston, William
- Gatianus, Saint
- Gau, Franz Christian
- Gaubil, Antoine
- Gaudentius, Saint
- Gaudentius of Brescia
- Gaudete Sunday
- Gaudier, Antoine de
- Gaudiosus
- Gaul, Christian
- Gaultier, Aloisius-Edouard-Camille
- Gaume, Jean-Joseph
- Gavantus, Bartolommeo
- Gaza
- Gazzaniga, Pietro Maria
- Gebhard (III) of Constance
- Gebhart, Emile
- Gedeon
- Gédoyn, Nicolas
- Gegenbauer, Josef Anton
- Geiler von Kayserberg, Johann
- Geissel, Johannes von
- Gelasius I, Pope Saint
- Gelasius II, Pope
- Gelasius of Cyzicus
- Gemblours
- Genealogy (in the Bible)
- Genealogy of Christ
- General Judgment
- Génebrard, Gilbert
- General Chapter
- Generation
- Genesareth
- Genesius
- Genevieve, Saint
- Genezareth, Land of
- Genga, Girolamo
- Génicot, Edward
- Gennadius I, Saint
- Gennadius II
- Gennadius of Marseilles
- Gennings, Edmund and John
- Genoa
- Gentile da Fabriano
- Gentiles
- Gentili, Aloysius
- Genuflexion
- Geoffrey of Clairvaux
- Geoffrey of Dunstable
- Geoffrey of Monmouth
- Geoffrey of Vendôme
- Geography, Biblical
- Geography and the Church
- George, Saint
- George, Orders of Saint
- George Hamartolus
- George of Trebizond
- George Pisides
- George the Bearded
- Georgetown University
- Georgia
- Georgius Syncellus
- Gerace
- Gerald, Saint
- Geraldton
- Géramb, Baron Ferdinand de
- Gérando, Joseph-Marie de
- Gérard, Abbot of Brogne, Saint
- Gerard, Bishop of Toul, Saint
- Gerard, Archbishop of York
- Gerard, John
- Gerard, Ven. Miles
- Gerard, Richard
- Gerard Majella, Saint
- Gerard of Cremona
- Gerardus Odonis
- Gerasa
- Gerberon, Gabriel
- Gerbet, Olympe-Phillipe
- Gerbillon, Jean-François
- Gerdil, Hyacinthe Sigismond
- Gerhard of Zütphen
- Gerhoh of Reichersberg
- Germain, Saint, Bishop of Auxerre
- Germain, Saint, Bishop of Paris
- Germaine Cousin, Saint
- German Gardiner, Blessed
- Germanicia
- Germanicopolis
- Germans in the United States
- Germanus I, Saint
- Germany
- German Literature
- Germany, Vicariate Apostolic of Northern
- Germia
- Gerona
- Gerrha
- Gerson, Jean de Charlier de
- Gertrude of Aldenberg, Blessed
- Gertrude of Hackeborn
- Gertrude of Nivelles, Saint
- Gertrude the Great, Saint
- Gertrude van der Oosten, Venerable
- Gervaise, Dom François Armand
- Gervase, George
- Gervase of Canterbury
- Gervase of Tilbury
- Gervasius and Protasius, Saints
- Géry, Saint
- Gesellenvereine
- Gesta Dei per Francos
- Gesta Romanorum
- Gethsemane
- Gethsemane, Abbey of Our Lady of
- Gezireh
- Gfrörer, August Friedrich
- Ghardaia
- Ghent
- Ghibellines and Guelphs
- Ghiberti, Lorenzo di Cione
- Ghirlandajo
- Ghislain, Saint
- Ghost Dance
- Giannone, Pietro
- Gibail and Batrun
- Gibault, Pierre
- Gibbons, John
- Gibbons, Richard
- Giberti, Jean-Pierre
- Giberti, Gian Matteo
- Gibraltar
- Gideon
- Giffard, Bonaventure
- Giffard, Godfrey
- Giffard, William
- Gifford, William
- Gift of Miracles
- Gift, Supernatural
- Gilbert, Nicolas-Joseph-Laurent
- Gilbert, Sir John Thomas
- Gilbert de la Porrée
- Gilbert Foliot
- Gilbertines, Order of
- Gilbert Islands
- Gilbert of Sempringham, Saint
- Gildas, Saint
- Gil de Albornoz, Alvarez Carillo
- Giles, Saint
- Gillespie, Eliza Maria
- Gillespie, Neal Henry
- Gillis, James
- Gilmore, Patrick Sarsfield
- Gil of Santarem, Blessed
- Gindarus
- Ginoulhiac, Jacques-Marie-Achille
- Gioberti, Vincenzo
- Giocondo, Fra Giovanni
- Giordani, Tommasso
- Giordano, Luca
- Giorgione
- Giotto di Bondone
- Giovanelli, Ruggiero
- Giraldi, Giovanni Battista
- Giraldi, Ubaldo
- Giraldus Cambrensis
- Girard, Jean-Baptiste
- Girardon, François
- Giraud de Borneil
- Girba
- Girgenti
- Gisbert, Blaise
- Giovanni Dominici, Blessed
- Giuliani, Veronica
- Giulio Romano
- Giuseppe Maria Tommasi, Blessed
- Giuseppe Giusti
- Glaber, Raoul
- Glabrio, Manius Acilius
- Glagolitic
- Glaire, Jean-Baptiste
- Glanville, Ranulf de
- Glarean, Henry
- Glasgow
- Glastonbury Abbey
- Glebe
- Glendalough, School of
- Gloria in Excelsis Deo
- Gloria, Laus et Honor
- Glory
- Glory Be
- Glosses, Scriptural
- Glosses, Glossaries, Glossarists
- Glossolalia
- Gloves, Episcopal
- Gluttony
- Gnesen-Posen
- Gnosticism
- Goa
- Goajira, Vicariate Apostolic of
- Goar, Saint
- Goar, Jacques
- Gobat, George
- Gobban Saer
- Gobelinus, Person
- God
- "God", Etymology of the Word
- God, Existence of
- God, Nature and Attributes of
- God, Relation of the Universe to
- God, Three Persons of
- Godard, Saint
- Godden, Thomas
- Godeau, Antoine
- Godeberta, Saint
- Godelina, Saint
- Godet des Marais, Paul
- Godfrey of Bouillon
- Godfrey of Fontaines
- Godfrey of Viterbo
- Godinez
- Godric
- Goesport, John Wessel
- Goetz, Marie Josephine
- Goffe, Stephen
- Goffine, Leonard
- Gog and Magog
- Golden Bull
- Golden Calf
- Golden Rose
- Goldoni, Carlo
- Goldwell, Thomas
- Golgotha
- Gómara, Francisco Lopez de
- Gomes De Amorim, Francisco
- Gondulphus
- Gonet, Jean Baptiste
- Gonnelieu, Jérôme de
- Gonzaga, Saint Aloysius
- Gonzaga, Ercole
- Gonzaga, Scipione
- Gonzalez, Saint Peter
- González de Santalla, Thyrsus
- González, Zeferino
- Gonzalo de Berceo
- Good
- Good, Highest, The
- Good Faith
- Good Friday
- Good Hope, Cape of (Eastern)
- Good Hope, Cape of (Western)
- Godfrey Goodman
- Goodman, Ven. John
- Good Samaritan, Sisters of the
- Good Shepherd, Our Lady of Charity of the
- Goossens, Pierre-Lambert
- Gordian
- Gordianus and Epimachus, Saints
- Gordon, Andrew
- Gordon Riots
- Gordos
- Gorgonius, Saint
- Gorkum, The Martyrs of
- Görres, Guido
- Görres, Johann Joseph
- Gortyna
- Görz
- Goscelin
- Gospel and Gospels
- Gospel in the Liturgy
- Gospel of Mark
- Goss, Alexander
- Gossaert, Jan
- Gosselin, Jean-Edmé-Auguste
- Gother, John
- Gothic Architecture
- Gottfried von Strasburg
- Gotti, Vincent Louis
- Gottschalk, Saint
- Gottschalk of Orbais
- Göttweig, Abbey of
- Goulburn
- Gounod, Charles-François
- Goupil, René
- Gousset, Thomas-Marie-Joseph
- Government Authority
- Gower, John
- Goya y Lucientes, Francisco José de
- Goyaz, Diocese of
- Gozo, Diocese of
- Gozzi, Carlo
- Gozzoli
- Gozzolini, Saint Sylvester
- Grace
- Grace, Actual
- Grace, Supernatural
- Grace, Controversies on
- Grace, William Russell
- Grace at Meals
- Gradual
- Gradual Psalms
- Gradwell, Robert
- Graffiti
- Graham, Patrick
- Grail, The Holy
- Gramont, Eugénie de
- Gran
- Granada
- Granada, University of
- Grancolas, Jean
- Grande Chartreuse, La
- Granderath, Theodor
- Grandidier, Philippe-André
- Grandmont, Abbey and Order of
- Grand Rapids
- Grant, Thomas
- Granvelle, Antoine Perrenot de
- Gras, Venerable Louise de Marillac Le
- Grasse, François-Joseph-Paul
- Grässel, Lorenz
- Grassis, Paris de
- Gratian
- Gratian, Jerome
- Gratian, Johannes
- Gratianopolis
- Gratius, Ortwin
- Gratry, Auguste-Joseph-Alphonse
- Gratz, Peter Aloys
- Gravier, Jacques
- Gravina, Dominic
- Gravina, Giovanni Vincenzo
- Gravina and Montepeloso
- Graz, University of
- Great Falls
- Greco, El
- Greece
- Greek Catholics in America
- Greek Church
- Greek Orthodox Church in America
- Greek Rites
- Green, Hugh
- Green, Thomas Louis
- Green Bay
- Greenland
- Gregorian Chant
- Gregory I, Pope Saint
- Gregory II, Pope Saint
- Gregory III, Pope Saint
- Gregory IV, Pope
- Gregory V, Pope
- Gregory VI, Pope
- Gregory VI
- Gregory VII, Pope Saint
- Gregory VIII, Pope
- Gregory VIII
- Gregory IX
- Gregory X
- Gregory XI
- Gregory XII
- Gregory XIII, Pope
- Gregory XIV, Pope
- Gregory XV, Pope
- Gregory XVI, Pope
- Gregory Baeticus
- Gregory of Heimburg
- Gregory of Nazianzus, Saint
- Gregory of Neocaesarea, Saint
- Gregory of Nyssa, Saint
- Gregory of Rimini, Saint
- Gregory of Tours, Saint
- Gregory of Utrecht, Saint
- Gregory of Valencia
- Gregory the Illuminator
- Greifswald, University of
- Greith, Karl Johann
- Gremiale
- Grenoble
- Gresemund, Dietrich
- Greslon, Adrien
- Gresset, Jean Baptiste
- Gretser, Jacob
- Greuze, Jean-Baptiste
- Grey Nuns
- Grey Nuns of the Cross
- Griffin, Gerald
- Griffin, Martin Ignatius Joseph
- Griffiths, Thomas
- Grillparzer, Franz
- Grimaldi, Francesco Maria
- Grimaldi, Giovanni Francesco
- Grimmelshausen, Johann Jacob Christoffel von
- Gröne, Valentin
- Groote, Gerard
- Gropper, John
- Grosseteste, Robert
- Grosseto
- Grosswardein
- Grottaferrata, Abbey of
- Grueber, Johann
- Grün, Anastasius
- Guadalajara
- Guadalupe, Shrine of
- Guadeloupe
- Guadix, Diocese of
- Guaicuri Indians
- Guamanga, Diocese of
- Guaraní Indians
- Guarantees, Law of
- Guarda, Diocese of
- Guardi, Francesco
- Guardian Angels
- Guardian Angels, Feast of
- Guardianship, in Civil Jurisprudence
- Guarini, Battista
- Guarino da Verona
- Guastalla, Diocese of
- Guastallines
- Guatemala, Santiago de
- Guayaquil
- Gubbio
- Gudenus, Moritz
- Gudula, Saint
- Guelphs and Ghibellines
- Guéranger, Prosper Louis Pascal
- Guérard, Robert
- Guérin, Anne-Thérèse
- Guérin
- Gügler, Joseph Heinrich Aloysius
- Guglielmini, Giovanni Battista
- Guiana
- Guibert of Ravenna
- Guicciardini, Francesco
- Guido of Arezzo
- Guigues du Chastel
- Guijon, André
- Guilds
- Guiney, Patrick Robert
- Guiscard, Robert
- Guise, House of
- Guitmund
- Gulf of St. Lawrence
- Gunpowder Plot, The
- Gunther, Blessed
- Günther, Anton
- Günther of Cologne
- Gurk
- Gury, Jean-Pierre
- Gusmão, Bartholomeu Lourenço de
- Gutenberg, Johann
- Guthlac, Saint
- Guyon, Jeanne-Marie-Bouvier de La Motte-
- Guzmán, Fernando Pérez de
- Györ
- Haarlem
- Habacuc
- Habakkuk
- Haberl, Francis Xavier
- Habington, William
- Habit
- Habor River
- Haceldama
- Hadewych, Blessed
- Hadrian, Publius Aelius
- Hadrian
- Hadrumetum
- Haeften, Benedict van
- Hagen, Gottfried
- Haggai
- Haggith
- Hagiography
- Hague, The
- Hahn-Hahn, Ida
- Haid, Herenaus
- Hail Holy Queen
- Hail Mary
- Haimhausen, Karl von
- Hair (in Christian Antiquity)
- Hairshirt
- Haiti
- Haito
- Hakodate
- Hakon the Good
- Halicarnassus
- Halifax
- Hallahan, Margaret
- Haller, Karl Ludwig von
- Hallerstein, August
- Halloween
- Halloy, Jean-Baptiste-Julien D'Omalius
- Halma, Nicholas
- Ham, Hamites
- Hamar, Ancient See of
- Hamatha
- Hambley, Ven. John
- Hamburg
- Hamilton, Ontario, Diocese of
- Hamilton, John
- Hammer-Purgstall, Joseph, Baron von
- Hammurabi
- Hamsted, Adrian
- Haneberg, Daniel Bonifacius von
- Hanover
- Hanse, Blessed Everald
- Hansiz, Markus
- Hanthaler, Chrysostomus
- Hanxleden, Johann Ernest
- Happiness
- Haraldson, Saint Olaf
- Harbor Grace
- Hardee, William J.
- Hardey, Mary Aloysia
- Harding, St. Stephen
- Harding, Thomas
- Hardman, Mary Juliana
- Hardouin, Jean
- Hardyng, John
- Hare Indians
- Harland, Henry
- Harlay, Family of
- Harlez de Deulin, Charles-Joseph de
- Harmony
- Harney
- Harold, Francis
- Harold Bluetooth
- Harpasa
- Harper, Thomas Morton
- Harrington, Ven. William
- Harris, Joel Chandler
- Harrisburg
- Harrison, James
- Harrison, William
- Harrowing of Hell
- Hart, William
- Hartford
- Hartley, Ven. William
- Hartmann, Georg
- Hartmann von Aue
- Hasak, Vincenz
- Haschka, Lorenz Leopold
- Haspinger, Johann Simon
- Hassard, John Rose Greene
- Hasslacher, Peter
- Hatred
- Hatto
- Hatton, Edward Anthony
- Hauara
- Haudriettes
- Haughery, Margaret
- Hauréau, Jean-Barthélemy
- Hautecombe
- Hautefeuille, Jean de
- Hautefeuille, Jean de
- Hauteserre
- Haüy, René-Just
- Haüy, Valentin
- Hauzeur, Mathias
- Havana
- Havestadt, Bernhard
- Hawarden, Edward
- Hawes, Stephen
- Hawker, Robert Stephen
- Hawkins, Sir Henry
- Hay, Edmund and John
- Hay, George
- Haydn, Johann Michael
- Haydn, Franz Joseph
- Haydock, Venerable George
- Haydock, George Leo
- Haymo
- Haymo of Faversham
- Haynald, Lajos
- Hazart, Cornelius
- Healy, George Peter Alexander
- Hearse, Tenebrae
- Heart of Jesus, Devotion to the
- Heart of Mary, Congregations of
- Heart of Mary, Devotion to the
- Heath, Ven. Henry
- Heaven
- Hebrew Bible
- Hebrew Language and Literature
- Hebrews, Epistle to the
- Hebrides, New
- Hebron
- Hecker, Isaac Thomas
- Hédelin, François
- Hedonism
- Hedwig, Saint
- Heeney, Cornelius
- Heereman von Zuydwyk, Freiherr von
- Heeswijk
- Hefele, Karl Joseph von
- Hegelianism
- Hegesippus, Saint
- Hegesippus, The Pseudo-
- Hegius, Alexander
- Heidelberg, University of
- Heiligenkreuz
- Heilsbronn
- Heilsbronn, Monk of
- Heim, François Joseph
- Heinrich der Glïchezäre
- Heinrich von Ahaus
- Heinrich von Laufenberg
- Heinrich von Meissen
- Heinrich von Melk
- Heinrich von Veldeke
- Heinz, Joseph
- Heis, Eduard
- Heisterbach
- Helena, Saint
- Helena (Montana)
- Helen of Sköfde, Saint
- Helenopolis
- Heli
- Heliae, Paul
- Heliand, The
- Hélinand
- Heliogabalus
- Hell
- Hell, Maximilian
- Hello, Ernest
- Helmold
- Helmont, Jan Baptista van
- Helpers of the Holy Souls, Society of the
- Helpidius, Flavius Rusticius
- Hélyot, Pierre
- Hemmerlin, Felix
- Henderson, Issac Austin
- Hendrick, Thomas Augustine
- Hengler, Lawrence
- Hennepin, Louis
- Henoch
- Henoch, Book of
- Henoticon
- Henri de Saint-Ignace
- Henrion, Mathieu-Richard-Auguste
- Henríquez, Crisóstomo
- Henríquez, Enrique
- Henry II
- Henry II, Saint
- Henry III
- Henry IV
- Henry IV
- Henry V
- Henry VI
- Henry VIII
- Henry Abbot
- Henry of Friemar
- Henry of Ghent
- Henry of Herford
- Henry of Huntingdon
- Henry of Kalkar
- Henry of Langenstein
- Henry of Nördlingen
- Henry of Rebdorf
- Henry of Segusio, Blessed
- Henryson, Robert
- Henry Suso, Blessed
- Henry the Navigator, Prince
- Henschen, Godfrey
- Hensel, Luise
- Henten, John
- Heortology
- Hephaestus
- Heptarchy
- Heraclas
- Heraclea
- Heraldry, Ecclesiastical
- Herbart and Herbartianism
- Herbert of Bosham
- Herbert of Derwentwater, Saint
- Herbert of Lea, Lady Elizabeth
- Herbst, Johann Georg
- Herculano de Carvalho e Araujo, Alejandro
- Herder
- Herdtrich, Christian Wolfgang
- Heredity
- Hereford, Ancient Diocese of
- Hereswitha, Saint
- Heresy
- Hergenröther, Joseph
- Heribert, Saint
- Heribert
- Heriger of Lobbes
- Herincx, William
- Hermann I
- Hermann Contractus
- Hermann Joseph, Saint
- Hermann of Altach
- Hermann of Fritzlar
- Hermann of Minden
- Hermann of Salza
- Hermanos Penitentes, Los
- Hermas, Saint
- Hermas
- Hermeneutics
- Hermengild, Saint
- Hermes, Saint
- Hermes, George
- Hermite, Charles
- Hermits
- Hermits of St. Augustine
- Hermon
- Hermopolis Magna
- Hermopolis Parva
- Herod
- Herodias
- Heroic Act of Charity
- Heroic Virtue
- Herp, Henry
- Herrad of Landsberg
- Herregouts
- Herrera, Fernando de
- Herrera, Francisco
- Herrera Barnuevo, Sebastiano de
- Herrera y Tordesillas, Antonio de
- Herrgott, Marquard
- Hersfeld
- Hervás y Panduro, Lorenzo
- Hervetus, Gentian
- Hesebon
- Hesse
- Hessels, Jean
- Hesychasm
- Hesychius of Alexandria
- Hesychius of Jerusalem
- Hesychius of Sinai
- Hethites
- Hettinger, Franz
- Heude, Pierre
- Hewett, John
- Hewit, Augustine Francis
- Hexaemeron
- Hexapla
- Hexateuch
- Hexham and Newcastle
- Heynlin of Stein, Johann
- Heywood, Jasper and John
- Hezekiah
- Hibernians, Ancient Order of
- Hickey, Antony
- Hidalgo, Miguel
- Hierapolis
- Hierapolis
- Hierarchy
- Hierarchy of the Early Church
- Hierocaesarea
- Hieronymites
- Hierotheus
- Higden, Ranulf
- High Altar
- Higher Criticism
- High Priest, The
- Hilarion, Saint
- Hilarius, Pope Saint
- Hilarius of Sexten
- Hilarus, Pope Saint
- Hilary of Arles, Saint
- Hilary of Poitiers, Saint
- Hilda, Saint
- Hildebert of Lavardin
- Hildegard, Saint
- Hildesheim
- Hilduin, Abbot of St-Denis
- Hill, Ven. Richard
- Hillel
- Hilton, Walter
- Himeria
- Himerius
- Hincmar of Reims
- Hincmar of Laon
- Hinderer, Roman
- Hinduism
- Hingston, Sir William Hales
- Hippo Diarrhytus
- Hippo Regius
- Hippolytus of Rome, Saint
- Hippolytus, Saints
- Hippos
- Hirena
- Hirschau, Abbey of
- Hirscher, Johann Baptist von
- Historical Criticism
- History, Ecclesiastical
- Hittites
- Hittorp, Melchior
- Hladnik, Franz von Paula
- Hobart
- Hodgson, Sydney
- Hofer, Andreas
- Höfler, Konstantin von
- Hogan, John Baptist
- Hohenbaum van der Meer, Moritz
- Hohenburg
- Hohenlohe-Waldenburg-Schillingsfürst, Alexander Leopold
- Holbein, Hans
- Holden, Henry
- Holiness
- Holland, Ven. Thomas
- Hollanders in the United States
- Holmes, John
- Holocaust
- Holstenius, Lucas
- Holtei, Karl von
- Holy Agony, Archconfraternity of
- Holy Alliance
- Holy Childhood, Association of the
- Holy Child Jesus, Society of the
- Holy Coat
- Holy Communion
- Holy Cross, Congregation of
- Holy Cross, Sisters Marianites of
- Holy Cross, Sisters of the
- Holy Cross Abbey
- Holy Faith, Sisters of the
- Holy Family, Archconfraternity of the
- Holy Family, Congregations of the
- Holy Ghost
- Holy Ghost, Orders of the
- Holy Ghost, Religious Congregations of the
- Holy Grail, The
- Holy House of Loreto
- Holy Humility of Mary, Sisters of the
- Holy Infancy, Brothers of the
- Holy Innocents
- Holy Name, Feast of the
- Holy Name, Litany of the
- Holy Name, Society of the
- Holy Name of Jesus
- Holy Oils
- Holy Oils, Vessels for
- Holy Orders
- Holy Saturday
- Holy See
- Holy Sepulchre
- Holy Sepulchre, Canonesses Regular of the
- Holy Sepulchre, Fathers of the
- Holy Sepulchre, Knights of the
- Holy Spirit
- Holy Stairs (Scala Sancta)
- Holy Synod
- Holy Thursday
- Holy Water
- Holy Water Fonts
- Holy Week
- Holy Year of Jubilee
- Holyrood Abbey
- Holywell
- Holywood, Christopher
- Holywood, John
- Holzhauser, Bartholomew
- Homes
- Homicide
- Homiletics
- Homiliarium
- Homily
- Homoousion
- Honduras
- Hong-Kong
- Honoratus, Saint
- Honoratus a Sancta Maria
- Honorius, Saint
- Honorius I, Pope
- Honorius II, Pope
- Honorius III, Pope
- Honorius IV, Pope
- Honorius, Flavius
- Honorius of Autun
- Honour
- Hontheim, Johannes Nicolaus von
- Hood
- Hoogstraten, Jacob van
- Hooke, Luke Joseph
- Hope
- Hope-Scott, James Robert
- Hopi Indians
- Hôpital, Guillaume-François-Antoine de L'
- Hopkins, Gerard Manley
- Hormisdas, Pope Saint
- Horner, Nicholas
- Horns, Altar
- Hornyold, John Joseph
- Hortulus Animae
- Hosanna
- Hosea
- Hosius, Stanislaus
- Hosius of Cordova
- Hospice
- Hospitality
- Hospitallers
- Hospitallers of St. John of Jerusalem
- Hospitals
- Hospital Sisters of the Mercy of Jesus
- Hospitius, Saint
- Hossche, Sidron de
- Host, Johann
- Host
- Hottentots
- Houbigant, Charles François
- Houdon, Jean-Antoine
- Houdry, Vincent
- Houghton, John, Blessed
- Houghton, William
- Hours, Canonical
- Hours, Liturgy of the
- Hove, Peter van
- Howard, Mary, of the Holy Cross
- Howard, Philip Thomas
- Howard, Philip, Venerable
- Howard, Venerable William
- Hroswitha
- Huajuápam de León
- Huánuco
- Huaraz
- Huber, Alphons
- Hubert, Saint
- Hubert, Jean-François
- Hubert, Saint, Military Orders of
- Hubert Walter
- Hübner, Count Alexander
- Huc, Evariste Régis
- Hucbald of St-Amand
- Huddleston, John
- Hudson, Blessed James
- Hueber, Fortunatus
- Huelgas de Burgos
- Huesca
- Huet, Pierre-Daniel
- Hüffer, Hermann
- Hug, Johann Leonhard
- Hugh, Saint
- Hugh Capet
- Hughes, John
- Hugh Faringdon, Blessed
- Hugh of Digne
- Hugh of Lincoln, Saint
- Hugh of Flavigny
- Hugh of Fleury
- Hugh of Remiremont
- Hugh of St-Cher
- Hugh of St. Victor
- Hugh of Strasburg
- Hugh the Great, Saint
- Hugo, Charles-Hyacinthe
- Huguccio
- Huguenots
- Hülshoff, Annette Elisabeth von
- Hulst, Maurice Le Sage d'Hauteroche d'
- Human Acts
- Humanism
- Humbert of Romans
- Humeral Veil
- Humiliati
- Humility
- Humphrey Middlemore, Blessed
- Humphreys, Laurence
- Hungarian Catholics in America
- Hungary
- Hungarian Literature
- Hunolt, Franz
- Hunt, Ven. Thurston
- Hunter, Sylvester Joseph
- Hunting, Canons on
- Huntington, Jedediah Vincent
- Hunyady, János
- Huron Indians
- Hurst, Richard
- Hurtado, Caspar
- Hurter
- Hus, Jan
- Husenbeth, Frederick Charles
- Hussey, Thomas
- Hussites
- Hutton, Peter
- Huysmans, Joris Karl
- Hyacinth and Protus, Saints
- Hyacinth, Saint
- Hyacintha Mariscotti, Saint
- Hydatius of Lemica
- Hyderabad-Deccan, Diocese of
- Hyginus, Pope Saint
- Hylozoism
- Hymn
- Hymnody and Hymnology
- Hypaepa
- Hypnotism
- Hypocrisy
- Hypostatic Union
- Hypsistarians
- Hyrtl, Joseph
- Hyssop
- Ibar, Saint
- Ibarra
- Ibagué
- Ibas
- Iberville, Pierre Le Moyne, Sieur d'
- Ibora
- Iceland
- Ichthys (Fish), Symbolism of the
- Iconoclasm
- Iconography, Christian
- Iconium
- Iconostasis
- Idaho
- Idatius of Lemica
- Idea
- Idealism
- Ideas, Association of
- Idioms, Communication of
- Idiota
- Idolatry
- Idumea
- Iglesias, Diocese of
- Iglesias de la Casa, José
- Ignacio de Azevedo, Blessed
- Ignatius Loyola, Saint
- Ignatius of Antioch, Saint
- Ignatius of Constantinople, Saint
- Igneus, Blessed Peter
- Ignorance
- IHS
- Ildephonsus, Saint
- Illegitimacy
- Illinois
- Illinois Indians
- Illtyd, Saint
- Illuminated Manuscripts
- Illuminati
- Illuminati
- Illuminative Way
- Illyria
- Iltutus, Saint
- Images, Veneration of
- Imagination
- Imbonati, Carlo Giuseppe
- Imhof, Maximus von
- Imitation of Christ
- Immaculate Conception
- Immaculate Conception, Congregation of the
- Immanence
- Immanuel
- Immortality
- Immunity
- Imola
- Imola, Innocenzo di Pietro Francucci da
- Impanation
- Impediments, Canonical
- Imperative, Categorical
- Imperfect Contrition
- Imposition of Hands
- Impostors
- Improperia
- In Commendam
- Incorporation of Church Property, Civil
- In Partibus Infidelium
- In Petto
- Incardination and Excardination
- Incarnate Word, Sisters of Charity of the
- Incarnate Word and Blessed Sacrament, Order of the
- Incarnation, The
- Incense
- Incest
- Inchbald, Elizabeth
- In Caena Domini
- Index of Prohibited Books
- India
- Indiana
- Indianapolis
- Indian Missions, Bureau of Catholic
- Indians, American
- Indies, Patriarchate of the East
- Indifferentism, Religious
- Individualism
- Individual, Individuality
- Indo-China
- Induction
- Indulgences
- Indulgences, Apostolic
- Indult, Pontifical
- Ine, Saint
- Infallibility
- Infamy
- Infanticide
- Infessura, Stefano
- Infidels
- Infinity
- Infralapsarians
- Ingen-Housz, Jan
- Inghirami, Giovanni
- Ingleby, Venerable Francis
- Ingolstadt, University of
- Ingram, Venerable John
- Ingres, Jean-Auguste Dominique
- Ingulf
- Ingworth, Richard of
- Injustice
- Innocent I, Pope
- Innocent II, Pope
- Innocent III, Pope
- Innocent IV, Pope
- Innocent V, Blessed Pope
- Innocent VI, Pope
- Innocent VII, Pope
- Innocent VIII, Pope
- Innocent IX, Pope
- Innocent X, Pope
- Innocent XI, Pope
- Innocent XII, Pope
- Innocent XIII, Pope
- Innsbruck University
- Inquisition
- Inquisition, Canonical
- Insane, Asylums and Care for the
- Insanity
- Inscriptions, Early Christian
- Inspiration of the Bible
- Installation
- Instinct
- Institute of Mary
- Institute of Mission Helpers of the Sacred Heart
- Institute of the Blessed Virgin Mary, Irish
- Institute of the Brothers of the Christian Schools
- Institutes, Roman Historical
- Institution, Canonical
- Intellect
- Intendencia Oriental y Llanos de San Martín
- Intention
- Intercession
- Intercession, Episcopal
- Interdict
- Interest (in Psychology)
- Interest (in Economics)
- Interims
- Internuncio
- Introduction, Biblical
- Introit
- Intrusion
- Intuition
- Inventory of Church Property
- Investiture, Canonical
- Investitures, Conflict of
- Invincible Armada, The
- Invitatorium
- Iona, School of
- Ionian Islands
- Ionian School of Philosophy
- Ionopolis
- Iowa
- Ipolyi, Arnold
- Ippolito Galantini, Blessed
- Ipsus
- Ireland
- Ireland, Ven. William
- Irenaeus, Saint
- Irene, Sister
- Irenopolis
- Iriarte, Ignacio de
- Irish, The, (in countries other than Ireland)
- Irish College, in Rome
- Irish Colleges, on the Continent
- Irish Confessors and Martyrs
- Irish Literature
- Irnerius
- Iroquois
- Irregularity
- Irremovability
- Irvingites
- Isaac
- Isaac Jogues, Saint
- Isaac of Armenia
- Isaac of Nineveh
- Isaac of Seleucia
- Isabella I
- Isabel of France, Saint
- Isaias
- Isaura
- Ischia
- Isernia and Venafro
- Ishmael
- Isidore of Pelusium, Saint
- Isidore of Seville, Saint
- Isidore of Thessalonica
- Isidore the Labourer, Saint
- Isionda
- Isla, José Francisco de
- Islam (Concept)
- Islam (Religion)
- Isleta Pueblo
- Islip, Simon
- Ismael
- Ispahan
- Israelites
- Issachar
- Issus
- Ita, Saint
- Italian Literature
- Italians in the United States
- Italo-Greeks
- Italy
- Ite Missa Est
- Itineraria
- Itinerarium
- Ittenbach, Franz
- Ives, Saint
- Ives, Levi Silliman
- Ivo of Chartres, Saint
- Ivory
- Ivrea, Diocese of
- Ixtlilxochitl, Fernando de Alba
- Jaca, Diocese of
- Jackson, Henry Moore
- Jacob
- Jacob of Jüterbogk
- Jacobus de Teramo
- Jacopo de Voragine, Blessed
- Jacopone da Todi
- Jacotot, Joseph
- Jacques de Vitry
- Jacquier, François
- Jaén
- Jaenbert
- Jaffa
- Jaffna, Diocese of
- Jainism
- Jamaica
- Jamay, Denis
- James, Epistle of Saint
- James of Brescia
- James of Edessa
- James of Sarugh
- James of the Marches, Saint
- James Primadicci
- James the Greater, Saint
- James the Less, Saint
- James Thompson, Blessed
- Janauschek, Leopold
- Jandel, Alexandre Vincent
- Jane Frances de Chantal, Saint
- Janner, Ferdinand
- Janow, Matthew of
- Jansen, Cornelius
- Jansenius and Jansenism
- Janssen, Arnold
- Janssen, Johann
- Janssens, Abraham
- Janssens, Johann Hermann
- Januarius, Saint
- Japan
- Japanese Martyrs
- Jarcke, Karl Ernst
- Jaricot, Pauline-Marie
- Jarlath, Saint
- Jaro
- Jarric, Pierre de
- Jason
- Jassus
- Jassy
- Jáuregui, Juan de
- Javouhey, Venerable Anne-Marie
- Jealousy
- Jean de La Bruyère
- Jean Eudes, Blessed
- Jean-Baptiste-Marie Vianney, Saint
- Jean-Gabriel Perboyre, Blessed
- Jeanne de Valois, Saint
- Jeaurat, Edmond
- Jedburgh
- Jehoshaphat
- Jehoshaphat, Valley of
- Jehovah
- Jehu
- Jemez Pueblo
- Jeningen, Venerable Philipp
- Jenks, Silvester
- Jennings, Sir Patrick Alfred
- Jephte
- Jeremias
- Jeremias the Prophet
- Jericho
- Jeroboam
- Jerome, Saint
- Jerome Emiliani, Saint
- Jerusalem (Before A.D. 71)
- Jerusalem (71-1099)
- Jerusalem, Latin Kingdom of (1099-1291)
- Jerusalem (After 1291)
- Jerusalem, Assizes of
- Jerusalem, Liturgy of
- Jesi
- Jesu Dulcis Memoria
- Jesuits, The
- Jesuit Apologetic
- Jesuit Generals Prior to the Suppression
- Jesuits, Distinguished
- Jesuits, History of the (pre-1750)
- Jesuits, Suppression of the (1750-1773)
- Jesuits, History of the (1773-1814)
- Jesuits, History of the (1814-1912)
- Jesuit's Bark
- Jesus Christ
- Jesus Christ, Character of
- Jesus Christ, Chronology of the Life of
- Jesus Christ, Devotion to the Heart of
- Jesus Christ, Early Historical Documents on
- Jesus Christ, Genealogy of
- Jesus Christ, Holy Name of
- Jesus Christ, Knowledge of
- Jesus Christ, Origin of the Name of
- Jesus Christ, Resurrection of
- Jesus, Daughters of
- Jesus and Mary, Sisters of the Holy Childhood of
- Jesus Mary, Religious of
- Jesus, The Society of
- Jewish Calendar
- Jewish Tribe
- Jews (as a Religion)
- Jews, History of the
- Jezabel
- Jíbaro Indians
- Joachim, Saint
- Joachim of Flora
- Joan, Popess
- Joanna of Portugal, Blessed
- Joannes de Sacrobosco
- Joan of Arc, Saint
- Job
- Jocelin
- Jocelin de Brakelond
- Jocelin of Wells
- Joel
- Joest, Jan
- Jogues, Saint Isaac
- John I, Pope Saint
- John II, Pope
- John III, Pope
- John IV, Pope
- John V, Pope
- John VI, Pope
- John VII, Pope
- John VIII, Pope
- John IX, Pope
- John X, Pope
- John XI, Pope
- John XII, Pope
- John XIII, Pope
- John XIV, Pope
- John XV (XVI), Pope
- John XVI (XVII)
- John XVII (XVIII), Pope
- John XVIII (XIX), Pope
- John XIX (XX), Pope
- John XXI (XX), Pope
- John XXII, Pope
- John XXIII
- John, Epistles of
- John, Gospel of
- John and Cyrus, Saints
- John and Paul, Saints
- John Baptist de la Salle, Saint
- John Baptist de Rossi, Saint
- John Beche, Blessed
- John Berchmans, Saint
- John Bosco, Saint
- John Boste, Saint
- John Britton, Venerable
- John Buckley, Venerable
- John Cantius, Saint
- John Capistran, Saint
- John Chrysostom, Saint
- John Climacus, Saint
- John Colombini, Blessed
- John Cornelius and Companions, Venerable
- John Damascene, Saint
- John de Britto, Blessed
- John Felton, Blessed
- John Fisher, Saint
- John Forest, Blessed
- John Francis Regis, Saint
- John Hambley, Venerable
- John Ingram, Venerable
- John Joseph of the Cross, Saint
- John Larke, Blessed
- John Malalas
- John Nelson, Blessed
- John Nepomucene, Saint
- John of Antioch
- John of Avila, Blessed
- John of Beverley, Saint
- John of Biclaro
- John of Cornwall
- John of Ephesus
- John of Falkenberg
- John of Fécamp
- John of Fermo, Blessed
- John of Genoa
- John of God, Saint
- John of Hauteville
- John of Janduno
- John of Montecorvino
- John of Montesono
- John of Nikiû
- John of Paris
- John of Parma, Blessed
- John of Ragusa
- John of Roquetaillade (de Rupescissa)
- John of Rupella
- John of Sahagun, Saint
- John of Saint Thomas
- John of Salisbury
- John of Segovia
- John of the Cross, Saint
- John of Victring
- John of Winterthur
- John Parvus
- John Payne, Blessed
- John Rigby, Saint
- John Roberts, Saint
- John Rochester, Blessed
- John Sarkander, Blessed
- John Scholasticus
- John Shert, Blessed
- Johnston, Richard Malcolm
- John Stone, Blessed
- John Story, Blessed
- John Talaia
- John the Almsgiver, Saint
- John the Baptist, Saint
- John the Deacon
- John the Evangelist, Saint
- John the Faster
- John the Silent, Saint
- John Twenge, Saint
- Johnson, Lionel Pigot
- Johnson, Blessed Robert
- Johnson, Blessed Thomas
- Joinville, Jean, Sire de
- Joliet, Louis
- Joliette
- Jolly, Philipp Johann Gustav von
- Jonah
- Jonas
- Jonas of Bobbio
- Jonas of Orléans
- Jonathan
- Jones, Venerable Edward
- Jones, Inigo
- Jordan, The
- Jordanis
- Jordanus of Giano
- Jörg, Joseph Edmund
- Jornandes
- Josaphat
- Josaphat, Valley of
- Josaphat and Barlaam
- Josaphat Kuncevyc, Saint
- Joseph, Saint
- Joseph
- Joseph Calasanctius, Saint
- Joseph Calasanctius of the Mother of God, Pious Workers of Saint
- Joseph of Arimathea
- Joseph of Cupertino, Saint
- Joseph of Exeter
- Joseph of Issachar
- Joseph of Leonessa, Saint
- Joseph II
- Joseph, Sisters of Saint
- Josephites
- Joseph's Society for Colored Missions, Saint
- Joseph's Society for Foreign Missions, Saint
- Josephus, Flavius
- Joshua
- Josias
- Josue
- Joubert, Joseph
- Jouffroy, Claude-François-Dorothée de
- Jouffroy, Jean de
- Jouin, Louis
- Jouvancy, Joseph de
- Jouvenet, Jean
- Jovellanos, Gaspar Melchor de
- Jovinianus
- Jovianus, Flavius Claudius
- Jovius, Paulus
- Joyeuse, Henri, Duc de
- Juan Bautista de Toledo
- Jubilate Sunday
- Jubilee, Holy Year of
- Jubilee, Year of (Hebrew)
- Jubilees, Book of
- Juda
- Judaism
- Judaizers
- Judas Iscariot
- Judas Machabeus
- Judde, Claude
- Jude, Epistle of Saint
- Judea
- Judge, Ecclesiastical
- Judges, The Book of
- Judgment, Divine
- Judgment, General
- Judgment, Last
- Judgment, Particular
- Judica Sunday
- Judith, Book of
- Julian and Basilissa, Saints
- Julian of Eclanum
- Julian of Speyer
- Juliana, Saint
- Juliana Falconieri, Saint
- Juliana of Liège, Saint
- Juliana of Norwich
- Julian the Apostate
- Julia Billiart, Saint
- Julie Billiart, Saint
- Juliopolis
- Julitta and Quiricus
- Julius I, Pope Saint
- Julius II, Pope
- Julius III, Pope
- Julius Africanus
- Jumièges, Abbey of
- Jungmann, Bernard
- Jungmann, Josef
- Junípero Serra
- Jurisdiction, Ecclesiastical
- Jussieu, De
- Jus Spolii
- Juste
- Justice
- Justification
- Justin de Jacobis, Blessed
- Justinian I
- Justin Martyr, Saint
- Justina and Cyprian, Saints
- Justiniani, Benedetto
- Justiniani, Nicholas
- Justinianopolis
- Justus, Saint
- Juvencus, C. Vettius Aquilinus
- Juvenile Courts
- Kabbala
- Kadlubek, Blessed Vincent
- Kafiristan and Kashmir, Prefecture Apostolic of
- Kafirs
- Kager, Johann Matthias
- Kaiser, Kajetan Georg von
- Kaiserchronik
- Kaiserwilhelmsland
- Kalands Brethren
- Kalcker, Jan Stephanus van
- Kalinka, Valerian
- Kalispel Indians
- Kalocsa-Bacs, Archdiocese of
- Kamerun, Vicariate Apostolic of
- Kandy, Diocese of
- Kansas
- Kansas City, Diocese of
- Kan-Su, Prefecture Apostolic of Southern
- Kan-Su, Vicariate Apostolic of Northern
- Kant, Philosophy of
- Karinthia
- Karnkowski, Stanislaw
- Kaskaskia Indians
- Kassai, Upper
- Kauffmann, Angelica
- Kaufmann, Alexander
- Kaufmann, Leopold
- Kaulen, Franz Philip
- Kaunitz, Wenzel Anton
- Kateri Tekakwitha, Blessed
- Kavanagh, Edward
- Kavanagh, Julia
- Kearney, Diocese of
- Keating, Geoffrey
- Keewatin, Vicariate Apostolic of
- Kehrein, Joseph
- Keller, Jacob
- Kellner, Lorenz
- Kells, Book of
- Kells, School of
- Kemble, Ven. John
- Kemp, John
- Kenia
- Kenites
- Kennedy, James
- Kenneth, Saint
- Kenny, Saint
- Kenosis
- Kenraghty
- Kenrick, Francis Patrick and Peter Richard
- Kent, Nun of
- Kentigern, Saint
- Kentucky
- Keon, Miles Gerard
- Kerkuk
- Kernan, Francis
- Kerry and Aghadoe
- Kerssenbroch, Hermann von
- Kervyn de Lettenhove, Joseph-Marie-Bruno-Constantin, Baron
- Kessels, Matthias
- Ketteler, Wilhelm Emmanuel, Baron von
- Kevin of Glendalough, Saint
- Keyes, Erasmus Darwin
- Keys, Power of the
- Kharput
- Kiang-nan
- Kiang-si, Eastern
- Kiang-si, Northern
- Kiang-si, Southern
- Kickapoo Indians
- Kickham, Charles Joseph
- Kielce
- Kieran, Saints
- Kildare, School of
- Kildare and Leighlin
- Kilian, Saint
- Killala
- Killaloe
- Kilmore
- Kilwardby, Robert
- Kilwinning, Benedictine Abbey of
- Kimberley
- Kimberley in Orange
- Kingdom of God
- Kingisel
- Kings
- Kings, First and Second Books of
- Kings, Third and Fourth Books of
- Kings, Chronology of the
- Kingston
- Kinloss
- Kino, Eusebius
- Kiowa Indians
- Kirby, Blessed Luke
- Kircher, Athanasius
- Kirkwall
- Kisfaludy
- Kiss
- Klaczko, Julian
- Klee, Heinrich
- Klesl, Melchior
- Kleutgen, Josef Wilhelm Karl
- Klinkowström
- Klopp, Onno
- Knabl, Joseph
- Kneeling
- Kneipp, Sebastian
- Knight, Venerable William
- Knighton, Henry
- Knighthood
- Knights of Christ, Order of the
- Knights of Columbus
- Knights of the Cross
- Knights of Malta
- Knights Templars, The
- Knoblecher, Ignatius
- Knoll, Albert (Joseph)
- Knowledge
- Knowledge of Jesus Christ
- Knownothingism
- Knox, John
- Kober, Franz Quirin von
- Koberger, Anthony
- Kobler, Andreas
- Kochanowski, Jan
- Kochowski, Vespasian
- Kögler, Ignaz
- Kohlmann, Anthony
- Koller, Marian Wolfgang
- Konarski, Stanislaus
- König, Joseph
- Königgrätz
- Königshofen, Jacob
- Konings, Anthony
- Konrad ("der Pfaffe")
- Konrad of Lichtenau
- Konrad of Megenberg
- Konrad of Würzburg
- Konsag, Ferdinand
- Koran, The
- Kosciuszko, Tadeusz
- Kostka, Saint Stanislas
- Kottayam, Vicariate Apostolic of
- Kozmian, Stanislaus and John
- Krafft, Adam
- Krain
- Krämer, John
- Krasicki, Ignatius
- Krasinski, Sigismund
- Kraus, Franz Xaver
- Kreil, Karl
- Kreiten, William
- Kremsmünster
- Kromer, Martin
- Krzycki, Andrew
- Kuhn, Johannes von
- Kulturkampf
- Kumbakonam
- Kuncevyc, Saint Josaphat
- Kutenai Indians
- Kwango
- Kwang-si
- Kwang-tung
- Kwei-chou
- Kyrie Eleison
- La Chaise, François d'Aix de
- La Crosse
- La Richardie, Armand de
- La Roche Daillon, Joseph de
- La Rochefoucauld-Liancourt, The Duke of
- La Rochejacquelein, Henri-Auguste-Georges du Vergier, Comte de
- La Rochelle
- Larrey, Dominique-Jean
- La Rue, Charles de
- La Salette
- La Salette, Missionaries of
- La Salle, John Baptist de, Saint
- La Salle, René-Robert-Cavelier, Sieur de
- La Serena, Diocese of
- La Verna
- Labadists
- Laban
- Labarum (Chi-Rho)
- Labat, Jean-Baptiste
- Labbe, Philippe
- Labour and Labour Legislation
- Labour Unions, Moral Aspects of
- La Bruyère, Jean de
- Labyrinth
- Lac, Stanislaus du
- Lace
- Lacedonia, Diocese of
- Lacordaire, Jean-Baptiste-Henri-Dominique
- Lactantius, Lucius Caecilius Firmianus
- Lacy, Blessed William
- Laderchi, James
- Ladislaus, Saint
- Laennec, René-Théophile-Hyacinthe
- Laetare Sunday
- Laetus, Pomponius
- La Fayette, Marie Madeleine Pioche de la Vergne, Comtesse de
- LaFarge, John
- Lafitau, Joseph-Françs
- Laflèche, Louis-François Richer
- La Fontaine, Jean de
- Laforêt, Nicholas-Joseph
- La Fosse, Charles de
- Lafuente y Zamalloa, Modesto
- Lagania
- Lagrené, Pierre
- La Harpe, Jean-François
- La Haye, Jean de
- La Hire, Philippe de
- Lahore
- Laibach
- Laicization
- Lainez, James
- Laity
- Lake Indians
- Lalemant, Charles
- Lalemant, Gabriel
- Lalemant, Jerome
- Lallemant, Jacques-Philippe
- Lallemant, Louis
- Lalor, Teresa
- La Luzerne, César-Guillaume
- Lamarck, Chevalier de
- Lamartine, Alphonse de
- Lamb, Paschal
- Lamb (in Early Christian Symbolism)
- Lambeck, Peter
- Lambert, Saint
- Lambert, Louis A.
- Lambert Le Bègue
- Lambert of Hersfeld
- Lambert of St-Bertin
- Lamberville, Jacques and Jean de
- Lambillotte, Louis
- Lambin, Denis
- Lambruschini, Luigi
- Lambton, Ven. Joseph
- Lamego
- Lamennais, Félicité Robert de
- Lamennais, Jean-Marie-Robert de
- Lamoignon, Family of
- Lamont, Johann von
- La Moricière, Louis-Christophe-Leon Juchault de
- Lamormaini, Wilhelm
- Lampa
- Lamp, Altar
- Lamp and Lampadarii
- Lamprecht
- Lamps, Early Christian
- Lampsacus
- Lamuel
- Lamus
- Lamy, Bernard
- Lamy, François
- Lamy, Thomas Joseph
- Lana, Francesco
- Lance, The Holy
- Lancelotti, Giovanni Paolo
- Lanciano and Ortona
- Land-Tenure in the Christian Era
- Lando, Pope
- Landriot, Jean-François-Anne
- Lanfranc
- Lanfranco, Giovanni
- Lang, Matthew
- Langen, Rudolph von
- Langénieux, Benoit-Marie
- Langham, Simon
- Langheim
- Langhorne, Ven. Richard
- Langley, Richard
- Langres
- Lanigan, John
- Lanspergius
- Lantern
- Lanterns, Altar
- Lanzi, Luigi
- Laodicea
- Laos
- La Paz
- Laplace, Pierre-Simon
- Lapland and Lapps
- La Plata
- La Plata
- Lapparent, Albert Auguste de
- Laprade, Victor de
- Lapsi
- Lapuente, Venerable Luis de
- Laranda
- Lares
- Larino
- Larissa
- Larke, Blessed John
- Larrey, Dominique-Jean
- Larue, Charles de
- Lasaulx, Ernst von
- Lascaris, Constantine
- Lascaris, Janus
- Laski, John
- Lassberg, Baron Joseph Maria Christoph von
- Lassus, Orlandus de
- Last Judgment, The
- Last Supper, The
- Lataste, Marie
- Latera, Flaminius Annibali de
- Lateran, Christian Museum of
- Lateran, Saint John
- Lateran Councils
- Lateran Council, First
- Lateran Council, Second
- Lateran Council, Third
- Lateran Council, Fourth
- Lateran Council, Fifth
- Lathrop, George Parsons
- Latin, Ecclesiastical
- Latin Church
- Latin Kingdom of Jerusalem
- Latin Literature in Christianity (Before the Sixth Century)
- Latin Literature in Christianity (Sixth to Twentieth Century)
- Classical Latin Literature in the Church
- Latini, Brunetto
- La Trappe
- Latreille, Pierre-André
- Latria
- Latrocinium
- Latter-Day Saints, The Church of Jesus Christ of
- Lauda Sion
- Lauds
- Laura
- Laurence O'Toole, Saint
- Laurentie, Pierre-Sébastien
- Lausanne and Geneva
- Lauzon, Jean de
- Lauzon, Pierre de
- Lavabo
- Laval, François de Montmorency
- La Valette, Jean Parisot de
- Laval University of Quebec
- Lavant
- Laverdière, Charles-Honoré
- Lavérendrye, Pierre Gaultier de Varennes, Sieur de
- Laverlochère, Jean-Nicolas
- Lavigerie, Charles-Martial-Allemand
- Lavoisier, Antoine-Laurent
- Law
- Law, Canon
- Law, Cemeteries in
- Law, Civil (Influence of the Church on)
- Law, Common
- Law, Divine (Moral Aspect of)
- Law, International
- Law, Mosaic
- Law, Natural
- Law, Roman
- Lawrence, Saint
- Lawrence, Saint
- Lawrence Justinian, Saint
- Lawrence of Brindisi, Saint
- Lawrence O'Toole, Saint
- Laws, Penal
- Lay Abbot
- Lay Brothers
- Lay Communion
- Lay Confession
- Lay Tithes
- Laymann, Paul
- Lazarites
- Lazarus
- Lazarus of Bethany, Saint
- Lazarus of Jerusalem, Order of Saint
- Lead, Diocese of
- League, The
- League, German
- League of the Cross
- Leander of Seville, Saint
- Leavenworth
- Lebanon
- Lebedus
- Le Blant, Edmond-Frederic
- Lebrun, Charles
- Lebwin, Saint
- Le Camus, Emile-Paul-Constant-Ange
- Le Camus, Etienne
- Le Caron, Joseph
- Lecce
- Leclerc du Tremblay, François
- Leclercq, Chrestien
- Lecoy de La Marche
- Le Coz, Claude
- Lectern
- Lectionary
- Lector
- Ledge, Altar
- Ledochowski, Miecislas Halka
- Leeds
- Lefebvre, Camille
- Lefèvre, Family of
- Le Fèvre, Jacques
- Lefèvre de la Boderie, Guy
- Lefèvre d'Etaples, Jacques
- Legacies
- Legate
- Legends, Literary or Profane
- Legends of the Saints
- Leghorn
- Legio
- Legipont, Oliver
- Legists
- Legitimation
- Le Gobien, Charles
- Legrand, Louis
- Le Gras, Venerable Louise de Marillac
- Le Hir, Arthur-Marie
- Lehnin, Abbey of
- Leibniz, System of
- Leigh, Venerable Richard
- Leipzig
- Leipzig, University of
- Leitmeritz
- Lejeune, Jean
- Lelong, Jacques
- Le Loutre, Louis-Joseph
- Le Mans
- Lemberg
- Lemcke, Henry
- Le Mercier, François
- Lemercier, Jacques
- Lemos, Thomas de
- Le Moyne
- Le Moyne, Simon
- L'Enfant, Pierre-Charles
- Lennig, Adam Franz
- Lenormant, Charles
- Lenormant, François
- Le Nourry, Denis-Nicolas
- Lent
- Lentulus, Publius
- Leo I (the Great), Pope
- Leo II, Pope Saint
- Leo III, Pope Saint
- Leo IV, Pope
- Leo V, Pope
- Leo VI, Pope
- Leo VII, Pope
- Leo VIII, Pope
- Leo IX, Pope
- Leo X, Pope
- Leo XI, Pope
- Leo XII, Pope
- Leo XIII, Pope
- Leo, Brother
- Leocadia, Saint
- Leodegar, Saint
- Leo Diaconus
- Leon
- León
- León, Luis de
- Leonard of Chios
- Leonard of Limousin, Saint
- Leonard of Port Maurice, Saint
- Leonardo da Vinci
- Leonidas, Saint
- Leontius, Saint
- Leontius Byzantinus
- Leontopolis
- Leopoldine Society, The
- Lepanto
- Leprosy
- Leptis Magna
- Le Puy
- Le Quien, Michel
- Lérida
- Lérins, Abbey of
- Leros
- Leroy-Beaulieu, Anatole
- Le Sage, Alain-René
- Lesbi
- Lescarbot, Marc
- Lescot, Pierre
- Lesina
- Leslie, John
- Lesbi
- Lescarbot, Marc
- Lescot, Pierre
- Lessius, Leonard
- Lessons in the Liturgy
- Lestrange, Louis-Henri de
- Lesueur, François Eustache
- Lesueur, Jean-François
- Lete
- Le Tellier, Charles-Maurice
- Le Tellier, Michel
- Letourneux, Nicolas
- Letters, Ecclesiastical
- Leubus
- Leuce
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- Levau, Louis
- Le Verrier, Urbain-Jean-Joseph
- Levites
- Leviticus
- Lex
- Lezana, Juan Bautista de
- L'Hospital, Michael de
- Libel
- Libellatici, Libelli
- Liber Pontificalis
- Liber Septimus
- Libera Me
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- Liberalism
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- Liberatus of Carthage
- Liber Diurnus Romanorum Pontificum
- Liberia
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- Libermann, Ven. Francis Mary Paul
- Libraries
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- Lieber, Ernst Maria
- Lieber, Moriz
- Liebermann, Bruno Franz Leopold
- Liège
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- Liessies
- Life
- Ligamen
- Lights
- Ligugé
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- Lilienfeld
- Lilius, Aloisius
- Lille
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- Lima
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- Limbourg, Pol de
- Limburg
- Limerick
- Limoges
- Limyra
- Linacre, Thomas
- Linares
- Lincoln
- Lincoln
- Lindanus, William Damasus
- Linde, Justin Timotheus Balthasar, Freiherr von
- Lindemann, Wilhelm
- Lindisfarne, Ancient Diocese and Monastery of
- Lindores, Benedictine Abbey of
- Line, Saint Anne
- Linens, Altar
- Lingard, John
- Linköping, Ancient See of
- Linoe
- Linus, Pope Saint
- Linz
- Lippe
- Lippi, Filippino
- Lippi, Filippo
- Lippomano, Luigi
- Lipsanotheca
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- Lisbon
- Lismore
- Lismore, School of
- Lismore and Waterford
- Lister, Thomas
- Liszt, Franz
- Litany
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- Litany of the Saints
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- Lithuania
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- Liutprand of Cremona
- Liverpool
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- Lloyd, Saint John
- Loaisa, Garcia de
- Loango
- Loaves of Proposition
- Lobbes, Benedictine Abbey of
- Lobera, Ann
- Loccum
- Lochleven
- Lochner, Stephen
- Loci Theologici
- Locke, Matthew
- Lockhart, William
- Lockwood, Venerable John
- Lodi
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- Logic
- Logos, The
- Lohel, Johann
- Lohner, Tobias
- Loja, Diocese of
- Lollards
- Loman, Saint
- Lombard, Peter
- Lombard, Peter
- Lombardy
- Loménie de Brienne, Etienne-Charles de
- London (England)
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- Longstreet, James
- Lope de Vega Carpio, Félix de
- Lopez-Caro, Francisco
- Lord's Prayer
- Lorea
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- Lorenzetti, Pietro and Ambrogio
- Lorenzo da Brindisi, Saint
- Loreto, Holy House of
- Loreto, Litany of
- Lorette
- Lorrain, Claude de
- Lorraine
- Lorsch Abbey
- Loryma
- Los Angeles and Monterey
- Lossada, Luis de
- Lossen, Karl August
- Lot
- Lottery
- Lotti, Antonio
- Lotto, Lorenzo
- Loucheux
- Louis IX, Saint
- Louis XIV
- Louis Allemand, Blessed
- Louis Bertrand, Saint
- Louise, Sister
- Louisiana
- Louis-Marie Grignion de Montfort, Saint
- Louis of Casoria, Venerable
- Louis of Granada, Venerable
- Louis of Toulouse, Saint
- Louise de Marillac Le Gras, Venerable
- Louisville, Diocese of
- Lourdes, Brothers of Our Lady of
- Lourdes, Notre-Dame de
- Louvain, University of
- Love, Theological Virtue of
- Low Church
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- Lower Criticism
- Low Sunday
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- Loyola University (Chicago)
- Loyola University (New Orleans)
- Lübeck
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- Luca, Giovanni Battista de
- Lucas, Frederick
- Lucca
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- Lucian of Antioch
- Lucic, John
- Lucifer
- Lucifer of Cagliari
- Lucina, Crypt of
- Lucius I, Pope Saint
- Lucius II, Pope
- Lucius III, Pope
- Luçon
- Lucy, Saint
- Ludger, Saint
- Ludmilla, Saint
- Ludolph of Saxony
- Ludovicus a S. Carolo
- Lueger, Karl
- Lugo
- Lugo, Francisco de
- Lugo, John de
- Lugos
- Luini, Bernardino
- Luke, Gospel of Saint
- Lulé Indians
- Lully, Jean-Baptiste
- Lully, Raymond
- Lumen Christi
- Luminare
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- Lumper, Gottfried
- Luna, Pedro de
- Lund
- Lunette
- Luni-Sarzana-Brugnato
- Lupus
- Lupus, Christian
- Luscinius, Ottmar
- Lusignan, Jean-Baptiste-Alphonse
- Lussy, Melchior
- Lust
- Luther, Martin
- Lutheranism
- Lütolf, Aloys
- Lutzk, Zhitomir, and Kamenetz, Diocese of
- Luxemburg
- Luxeuil Abbey
- Lycopolis
- Lydda
- Lydgate, John
- Lying
- Lynch, John
- Lyndwood, William
- Lyons, Archdiocese of
- Lyons, Councils of (Introduction)
- Lyons, First Council of
- Lyons, Second Council of
- Lyrba
- Lysias
- Lystra
- Maassen, Friedrich Bernard Christian
- Mabillon, Jean
- Mabinogion
- Macao
- Macarius, Saint
- Macarius
- Macarius Magnes
- Macarius of Antioch
- McCabe, Edward
- Maccabee, Judas
- Maccabees, The
- Maccabees, The Books of
- MacCaghwell, Hugh
- MacCarthy, Bartholomew
- MacCarthy, Denis Florence
- McCarthy, Justin
- MacCarthy, Nicholas Tuite
- McCloskey, William George
- MacCuilenan, Cormac
- MacDonell, Alexander
- MacDonald, John
- Mace
- Macedonians
- Macedo, Francisco
- Macerata and Tolentino
- MacFarland, Francis Patrick
- McGee, Thomas D'Arcy
- MacGeoghegan, James
- Machabees, The
- Machabees, The Books of
- Machabeus, Judas
- MacHale, John
- Machiavelli
- Machpelah
- Machutus, Saint
- Mackenzie
- McLoughlin, John
- Maclovius, Saint
- MacMahon, Heber
- MacMahon, Marie-Edmé-Patrice-Maurice de
- McMahon, Martin Thomas
- McMaster, James Alphonsus
- MacNeven, William James
- Mâcon, Ancient Diocese of
- McQuaid, Bernard John
- Macri
- Macrina the Elder, Saint
- Macrina the Younger, Saint
- McSherry, James Jr.
- McSherry, James Sr.
- McSherry, Richard
- Mactaris
- Madagascar
- Madaurus
- Maderna, Carlo
- Maderno, Stefano
- Madianites
- Madras
- Madrid-Alcalá
- Madruzzi, Christopher
- Madura Mission
- Maedoc, Saint
- Maelruan, Saint
- Maelrubha, Saint
- Maerlant, Jacob van
- Maestro di Camera del Papa
- Maffei, Bernardino
- Maffei, Francesco
- Maffei, Marchese Francesco Scipione
- Maffei, Raffaelo
- Magaud, Antoine-Dominique
- Magdala
- Magdalens
- Magdeburg
- Mageddo
- Magellan, Ferdinand
- Magi
- Magin Catalá
- Maginn, Edward
- Magisterium and Tradition
- Magistris, Simone de
- Magliabechi, Antonio
- Magna Carta
- Magnesia
- Magnien, Alphonse
- Magnificat
- Magnus, Olaus
- Magnus, Saint
- Magnus, Valerianus
- Magrath, John Macrory
- Magydus
- Mahony, Ven. Charles
- Mai, Angelo
- Maignan, Emmanuel
- Mailla, Joseph-Anna-Marie de Moyria de
- Maillard, Antoine-Simon
- Maillard, Oliver
- Maimbourg, Louis
- Maimonides, Teaching of Moses
- Maina Indians
- Maine
- Maine de Biran, François-Pierre-Gonthier
- Maintenon, Françoise, Marquise de
- Mainz
- Maipure Indians
- Maisonneuve, Paul de Chomedey de
- Maistre, Joseph-Marie, Comte de
- Maistre, Xavier de
- Maitland
- Majano, Benedetto da
- Majella, St. Gerard
- Majorca and Iviza
- Majordomo
- Majority
- Majunke, Paul
- Malabar
- Malabar Rites
- Malacca
- Malachias
- Malachy, Saint
- Malaga
- Malagrida, Gabriel
- Malatesta, House of
- Malchus
- Maldonado, Juan
- Malebranche, Nicolas
- Malediction (in Scripture)
- Malherbe, François
- Maliseet Indians
- Mallard, Ernest-François
- Mallinckrodt, Herman von
- Mallinckrodt, Pauline
- Malling Abbey
- Mallory, Stephen Russell
- Mallus
- Malmesbury
- Malmesbury, The Monk of
- Malo, Saint
- Malone, William
- Malory, Sir Thomas
- Malpighi, Marcello
- Malta
- Malta, Knights of
- Maltret, Claude
- Malvenda, Thomas
- Malvern
- Mamachi, Thomas Maria
- Mame, Alfred-Henri-Amand
- Mameluco
- Mamertine Prison
- Mamertus, Claudianus
- Mamertus, Saint
- Mammon
- Man
- Manahem
- Manahen, Saint
- Manasses
- Mance, Jeanne
- Manchester
- Manchuria
- Mandan Indians
- Mandeville, Jean de
- Manfredonia
- Mangalore
- Mangan, James Clarence
- Manharter
- Manichaeism
- Manifestation of Conscience
- Manila
- Manila Observatory
- Maniple
- Manitoba
- Mann, Theodore Augustine
- Manna
- Manning, Henry Edward
- Mannyng, Robert
- Mansard, François
- Mansard, Jules
- Mansi, Gian Domenico
- Mantegna, Andrea
- Mantelletta
- Mantua
- Mantuanus, Baptista
- Manu, The Laws of
- Manuel Chysoloras
- Manuscripts
- Manuscripts, Illuminated
- Manuscripts of the Bible
- Manuterge
- Manutius, Aldus
- Manzoni, Alessandro
- Map, Walter
- Maphrian
- Maran, Prudentius
- Marash
- Maratta, Carlo
- Marbodius
- Marca, Pierre de
- Marcellian and Mark, Saints
- Marcellina, Saint
- Marcellinus, Flavius
- Marcellinus, Pope
- Marcellinus Comes
- Marcellinus of Civezza, O.F.M.
- Marcello, Benedetto
- Marcellus I, Saint, Pope
- Marcellus II, Pope
- Marcellus of Ancyra
- March, Auzias
- Marchand, Jean Baptiste
- Marchant, Peter
- Marchesi, Pompeo
- Marchi, Giuseppe
- Marcian
- Marciane
- Marcianopolis
- Marcionites
- Marco Polo
- Marcopois
- Marcosians
- Marcoux, Joseph
- Marcus
- Marcus, Pope Saint
- Marcus Aurelius Antoninus
- Marcus Diadochus
- Marcus Eremita
- Mardin
- Maréchal, Ambrose
- Marenco
- Marenzio, Luca
- Margaret, Saint
- Margaret Haughery
- Margaret of Hungary, Blessed
- Margaret of the Blessed Sacrament
- Margaret Clitherow, Saint
- Margaret Colona, Blessed
- Margaret Mary, Saint
- Margaret of Cortona, Saint
- Margaret of Lorraine, Blessed
- Margaret of Savoy, Blessed
- Margaret of Scotland, Saint
- Margaret Pole, Blessed
- Margaritae
- Margil, Antonio
- Margotti, Giacomo
- Maria de Agreda
- Maria-Laach
- Mariales, Kantes
- Mariana
- Mariana, Juan
- Mariana Islands
- Mariannhill, Congregation of the Missionaries of
- Marian Priests
- Marianus of Florence
- Marianus Scotus
- Maria Theresa
- Marie Antoinette
- Marie Christine of Savoy, Blessed
- Marie de France
- Marie de l'Incarnation, Blessed
- Marie de l'Incarnation, Venerable
- Marienberg
- Marignolli, Giovanni de'
- Marina, Saint
- Marina
- Marini, Luigi Gaetano
- Marinus I, Pope
- Marinus II, Pope
- Mariotte, Edme
- Maris, Martha, Audifax, and Abachum, Saints
- Marisco, Adam de
- Mariscotti, Saint Hyacintha
- Marius Aventicus, Saint
- Marius Maximus, Lucius Perpetuus Aurelianus
- Marius Mercator
- Mark, Saint
- Mark, Pope Saint
- Mark, Gospel of
- Mark and Marcellian, Saints
- Mark of Lisbon
- Maroni, Paul
- Maronia
- Maronites
- Marquesas Islands
- Marquette (Michigan)
- Marquette, Jacques
- Marquette League
- Marquette University
- Marriage Banns
- Marriage, Civil
- Marriage, History of
- Marriage, Mixed
- Marriage, Moral and Canonical Aspect of
- Marriage, Mystical
- Marriage, Putative
- Marriage, Ritual of
- Marriage, Sacrament of
- Marriage, Validation of
- Marryat, Florence
- Marseilles
- Marshall, Thomas William
- Marshall Islands
- Marsi
- Marsico Nuovo and Potenza
- Marsigli, Luigi Ferdinando, Count de
- Marsilius of Padua
- Martel, Charles
- Martène, Edmond
- Martha, Saint
- Martha, Maris, Audifax, and Abachum, Saints
- Martial, Saint
- Martiall, John
- Martianay, Jean
- Martianus Capella
- Martigny, Joseph-Alexander
- Martin I, Pope Saint
- Martin II, Pope
- Martin IV, Pope
- Martin V, Pope
- Martin
- Martín, Enrico
- Martin, Felix
- Martin, Gregory
- Martin, Konrad
- Martin, Paulin
- Martina, Saint
- Martini, Antonio
- Martini, Martino
- Martini, Simone
- Martinique
- Martin of Braga
- Martin of Leon, Saint
- Martin of Tours, Saint
- Martin of Troppau
- Martin of Valencia, O.F.M.
- Martinian and Processus, Saints
- Martinov, John
- Martinsberg
- Martinuzzi, George
- Martin y Garcia, Luis
- Martyr
- Martyr d'Anghiera, Peter
- Martyrology
- Martyropolis
- Martyrs, Acts of the
- Martyrs, Japanese
- Martyrs, The Ten Thousand
- Martyrs in China
- Maruthas, Saint
- Mary, Blessed Virgin, The
- Mary, Children of
- Mary, Devotion to the Heart of
- Mary, Devotion to the Virgin
- Mary, Feast of the Nativity of the Blessed Virgin Mary
- Mary, Little Brothers of
- Mary, Missionaries of the Company of
- Mary, Mother of John Mark
- Mary, Name of
- Mary, Name of
- Mary, Society of (Marist Fathers)
- Mary, Society of, of Paris
- Mary, Tomb of the Blessed Virgin
- Mary de Cervellione
- Mary of Cleophas
- Mary of Romans 16:6: Hugh Pope, IX, 749, www.newadvent.org/cathen/09749b.htm
- Mary Anne de Paredes, Blessed
- Mary de Sales Chappuis, Venerable
- Mary Frances of the Five Wounds of Jesus, Saint
- Maryland
- Mary Magdalen, Saint
- Mary Magdalen de' Pazzi, Saint
- Mary of Egypt, Saint
- Mary Queen of Scots
- Mary Tudor
- Masaccio
- Mascoutens Indians
- Masolino da Panicale
- Mason, Richard Angelus a S. Francisco
- Masonry
- Maspha
- Mass, Chapter and Conventual
- Mass, Liturgy of the
- Mass, Music of the
- Mass, Nuptial
- Mass, Parochial
- Mass, Sacrifice of the
- Massa Candida
- Massa Carrara
- Massachusetts
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- Massaia, Guglielmo
- Massa Marittima
- Massé, Enemond
- Masses, Bequests for
- Masses, Bequests for (Canada)
- Masses, Bequests for (England)
- Masses, Devises and Bequests for (United States)
- Massillon, Jean-Baptiste
- Massorah
- Massoulié, Antoine
- Massuet, René
- Massys, Quentin
- Master of Arts
- Master of Liesborn, The
- Master of the Sacred Palace
- Mastrius, Bartholomew
- Mataco Indians
- Mater
- Materialism
- Maternity of the Blessed Virgin Mary, Feast of the
- Mathathias
- Mathew, Theobald
- Mathieu, François-Désiré
- Mathusala
- Matilda, Saint
- Matilda, Saint
- Matilda of Canossa
- Matins
- Matricula
- Matteo da Siena
- Matteo di Termini
- Matteo of Aquasparta
- Matter
- Matteucci, Carlo
- Matthew, Saint
- Matthew, Gospel of Saint
- Matthew, Sir Tobie
- Matthew of Bassi
- Matthew of Cracow
- Matthias, Saint
- Matthias Corvinus
- Matthias of Neuburg
- Maundy Thursday
- Maunoury, Auguste-François
- Maurice, Saint
- Maurice
- Maurists, The
- Maurus, Saint
- Maurus, Sylvester
- Maurus Magnentius Rabanus, Blessed
- Maury, Jean-Siffrein
- Maxentius, Joannes
- Maxentius, Marcus Aurelius
- Maxfield, Venerable Thomas
- Maximianopolis
- Maximianus
- Maximilian
- Maximilian I
- Maximinus, Saint
- Maximinus, Caius Valerius Daja
- Maximinus Thrax
- Maximopolis
- Maximus of Constantinople, Saint
- Maximus of Turin, Saint
- Maxwell, William
- Maxwell, Winifred
- Maya Indians
- Mayer, Christian
- Mayhew, Edward
- Mayne, Blessed Cuthbert
- Maynooth College
- Mayo, School of
- Mayo Indians
- Mayor, John
- Mayoruna Indians
- Mayotte, Nossi-Bé, and Comoro
- Mayr, Beda
- Mayron, Francis
- Mazarin, Jules
- Mazatec Indians
- Mazenod, Charles Joseph Eugene de
- Mazzara del Vallo
- Mazzella, Camillo
- Mazzolini, Lodovico
- Mazzolini, Sylvester
- Mazzuchelli, Pietro Francesco
- Mbaya Indians
- Meagher, Thomas Francis
- Meath
- Meaux, Diocese of
- Meaux
- Mecca
- Mechanism
- Mechitar
- Mechitarists
- Mechlin
- Mechtel, Johann
- Mechtilde, Saint
- Mechtild of Magdeburg
- Mecklenburg
- Medaille, Jean Paul
- Medals, Devotional
- Medal, Miraculous
- Medal of Saint Benedict
- Medardus, Saint
- Medea
- Medellín
- Media and Medes
- Mediator (Christ as Mediator)
- Medices, Hieronymus
- Medici, House of
- Medici, Catherine de'
- Medici, Maria de'
- Medicine, History of
- Medicine and Canon Law
- Medina, Bartholomew
- Medina, Juan de
- Medina, Miguel de
- Medrano, Francisco
- Medulic, Andras
- Meehan, Charles Patrick
- Megara
- Megarians
- Mège, Antoine-Joseph
- Mehrerau
- Meignan, Guillaume-René
- Meilleur, Jean-Baptiste
- Meinwerk, Blessed
- Meissen
- Meissonier, Ernest
- Melancthon, Philipp
- Melania (the Younger), Saint
- Melbourne
- Melchers, Paul
- Melchisedech
- Melchisedechians
- Melchites
- Meléndez Valdés, Juan
- Meletius of Antioch
- Meletius of Lycopolis
- Melfi and Rapolla
- Meli, Giovanni
- Melia, Pius
- Melissus of Samos
- Melitene
- Melito, Saint
- Melk, Abbey and Congregation of
- Melkites
- Melleray
- Mellifont Abbey
- Mellitus, Saint
- Melo
- Melos
- Melozzo da Forlí
- Melrose Abbey
- Melrose, Chronicle of
- Melzi, Francesco
- Memberton
- Membre, Zenobius
- Memling, Hans
- Memorial Brasses
- Memory
- Memphis
- Mena, Juan de
- Menaion
- Ménard, Léon
- Ménard, Nicolas-Hugues
- Ménard, René
- Menas, Saint
- Mencius
- Mendaña de Neyra, Alvaro de
- Mende
- Mendel, Mendelism
- Mendes de Silva, João
- Méndez and Gualaquiza
- Mendíburu, Manuel de
- Mendicant Friars
- Mendieta, Jerónimo
- Mendoza, Diego Hurtade de
- Mendoza, Francisco Sarmiento de
- Mendoza, Pedro Gonzalez de
- Meneses, Osorio Francisco
- Menéndez y Pelayo, Marcelino
- Menestrier, Claude-François
- Menevia
- Mengarini, Gregario
- Mengs, Anthon Rafael
- Mennas
- Mennonites
- Menochio, Giovanni Stefano
- Men of Understanding
- Menologium
- Menominee Indians
- Mensa, Mensal Revenue
- Mensing, John
- Mental Reservation
- Mentelin, Johannes
- Menzini, Benedetto
- Mercadé, Eustache
- Mercedarians
- Mercier, Louis-Honoré
- Mercuriali, Geronimo
- Mercy, Brothers of Our Lady of
- Mercy, Corporal and Spiritual Works of
- Mercy, Sisters of
- Mercy, Sisters of, of St. Borromeo
- Meredith, Edward
- Merici, Saint Angela
- Mérida
- Merit
- Mermillod, Gaspard
- Merneptah I
- Mérode, Frédéric-François-Xavier Ghislain de
- Mersenne, Marin
- Mesa
- Mesopotamia, Kurdistan, and Armenia
- Mesrob
- Messalians
- Messene
- Messias
- Messina, Antonello da
- Messina
- Messingham, Thomas
- Metalwork in the Service of the Church
- Metaphrastes, Symeon
- Metaphysics
- Metastasio, Pietro
- Metcalfe, Edward
- Metellopolis
- Metempsychosis
- Metham, Thomas
- Methodism
- Methodius I
- Methodius and Cyril, Saints
- Methodius of Olympus, Saint
- Methuselah
- Methymna
- Metrophanes of Smyrna
- Metropolis
- Metropolitan
- Metternich, Klemens Lothar Wenzel Von
- Metz
- Meun, Jean Clopinel de
- Mexico
- Mexico, Archdiocese of
- Mezger, Francis, Joseph, and Paul
- Mezzofanti, Giuseppe
- Miami Indians
- Michael the Archangel, Saint
- Michael, Military Orders of Saint
- Michael Caerularius
- Michael de Sanctis, Saint
- Michael of Cesena
- Michael O'Loghlen
- Michael Scotus
- Michaud, Joseph-François
- Micheas of Ephraim
- Micheas, Son of Jemla
- Micheas, Book of
- Michel, Jean
- Michelangelo Buonarroti
- Michelians
- Michelis, Edward
- Michelozzo di Bartolommeo
- Michigan
- Michoacan
- Mickiewicz, Adam
- Micmacs
- Micrologus
- Middendorp, Jakob
- Middle Ages
- Middlesbrough
- Midianites
- Midrashim
- Midwives
- Migazzi, Christoph Anton
- Mignard, Pierre
- Migne, Jacques-Paul
- Migration
- Milan
- Milde, Vinzenz Eduard
- Miles, George Henry
- Miles Gerard, Venerable
- Mileto
- Miletopolis
- Miletus
- Miletus, Vitus
- Milevum
- Milic, Jan
- Military Orders, The
- Millennium and Millenarianism
- Miller, Ferdinand Von
- Millet, Jean-François
- Millet, Pierre
- Milner, John
- Milner, Venerable Ralph
- Milo Crispin
- Milopotamos
- Miltiades, Pope Saint
- Miltiz, Karl von
- Milwaukee
- Mind
- Minden
- Ming, John
- Minimi
- Minister
- Minkelers, Jean-Pierre
- Minnesota
- Mino di Giovanni
- Minor
- Minorca
- Minor Orders
- Minsk
- Mint, Papal
- Minucius Felix
- Mirabilia Urbis Romae
- Miracle
- Miracle Plays and Mysteries
- Miracles, Gift of
- Miraculous Medal
- Miraeus, Aubert
- Mirandola, Giovanni Francesco Pico della
- Mirandola, Giovanni Pico della
- Miridite, Abbey of
- Miserere
- Misericorde, Congregation of the Sisters of
- Misocco and Galanca
- Missa Pro Populo
- Missal
- Mission, Congregation of Priests of the
- Missionaries of St. Charles Borromeo, Congregation of
- Missionaries of St. Francis de Sales of Annecy
- Missionary Society of St. Paul the Apostle
- Mission Indians (of California)
- Missions, California
- Missions, Catholic
- Missions, Catholic Indian, of Canada
- Missions, Catholic Indian, of the United States
- Missions, Catholic Parochial
- Mississippi
- Missouri
- Missouri Test-Oath
- Mithraism
- Mitre
- Mittarelli, Nicola Giacomo
- Mitylene
- Mivart, St. George Jackson
- Mixe Indians
- Mixed Marriage
- Mixteca Indians
- Moab, Moabites
- Mobile
- Mocissus
- Mocoví Indians
- Modalism (Monarchianism)
- Modena
- Modernism
- Modestus, Vitus, and Crescentia, Saints
- Modigliana
- Modra
- Mohammedan Confraternities
- Mohammed and Mohammedism
- Mohileff
- Möhler, Johann Adam
- Mohr, Christian
- Mohr, Joseph
- Moigno, François-Napoléon-Marie
- Molai, Jacques de
- Molesme, Notre-Dame de
- Molfetta, Terlizzi, and Giovinazzo
- Molière, Jean-Baptiste Poquelin
- Molina, Antonio De
- Molina, Juan Ignacio
- Molina, Luis de
- Molinism
- Molinos, Miguel de
- Molitor, Wilhelm
- Molloy, Francis
- Molloy, Gerald
- Molo, Gasparo
- Moloch
- Molokai
- Molyneux, Sir Caryll
- Mombritius, Bonino
- Monaco, Principality and Diocese of
- Monad
- Monarchians
- Monarchia Sicula
- Monasteries, Double
- Monasteries in Continental Europe, Suppression of
- Monasteries in England, Suppression of
- Monastery, Canonical Erection of a
- Monasticism
- Monasticism, Eastern
- Monasticism, Pre-Chalcedonian
- Monasticism, Western
- Moncada, Francisco De
- Mondino dei Lucci
- Mondoñedo
- Mondovi
- Mone, Franz
- Moneta
- Mongolia
- Mongus, Peter
- Monica, Saint
- Monism
- Monita Secreta
- Monk
- Monk of Malmesbury, The
- Monogram of Christ
- Monomotapa
- Monophysites and Monophysitism
- Monopoli, Diocese of
- Monopoly, Moral Aspects of
- Monotheism
- Monothelitism and Monothelites
- Monreale
- Monroe, James
- Monsabré, Jacques-Marie-Louis
- Monseigneur
- Monsell, William, Baron Emly
- Monsignor
- Monstrance (Ostensorium)
- Monstrelet, Enguerrand de
- Montagna, Bartolomeo
- Montagnais Indians (Quebec)
- Montagnais Indians (Chippewayans)
- Montaigne, Michel-Eyquen de
- Montalcino
- Montalembert, Charles-Forbes-René
- Montalto
- Montana
- Montañés, Juan Martínez
- Montanists
- Montanus, Benedictus Arias
- Montauban
- Montault, Xavier Barbier De
- Montboissier, Blessed Peter of
- Montcalm-Gozon, Marquis de Louis-Joseph
- Monte Cassino, Abbey of
- Montefeltro
- Montefiascone
- Montemayor, Jorge De
- Montenegro
- Montepulciano
- Monterey and Los Angeles
- Montesa, Military Order of
- Montesino, Antonio
- Montesinos, Luis de
- Montes Pietatis
- Montesqieu, Charles-Louis de Secondat, Baron de
- Monteverde, Claudio
- Monte Vergine
- Montevideo
- Montfaucon, Bernard de
- Montfort, Simon de
- Montgolfier, Joseph-Michel
- Months, Special Devotions for
- Montmagny, Charles Huault De
- Montmirail, John de
- Montmorency, Anne, First Duke of
- Montor, Alexis-François Artaud De
- Montpellier
- Montreal, Archdiocese of
- Montreuil
- Montreuil Abbey
- Mont-St-Michel
- Montyon, Antoine-Jean-Baptiste-Robert Auget, Baron de
- Moore, Arthur
- Moore, Michael
- Moore, Thomas
- Mopsuestia
- Mor, Antonis Van Dashort
- Moral Theology
- Morales, Ambrosio
- Morales, Christóbal
- Morales, Juan Bautista
- Morales, Luis de
- Moralities
- Morality
- Moran, Francis Patrick
- Moratín, Leandro Fernandez de
- Moravia
- Moravian Brethren
- Morcelli, Stefano Antonio
- More, Thomas, Saint
- More, Helen
- More, Henry
- Morel, Gall
- Morell, Juliana
- Morelos, José María
- Moréri, Louis
- Moreto y Cabaña, Augustine
- Morgagni, Giovanni Battista
- Morgan, Venerable Edward
- Morghen, Raffaello
- Moriarty, David
- Morigi, Michaelangelo (Caravaggio)
- Morimond, Abbey of
- Morin, Jean
- Mormons
- Morocco
- Morone, Giovanni
- Moroni, Gaetano
- Moroni, Giovanni Battista
- Morris, John
- Morris, John Brande
- Morris, Martin Ferdinand
- Morse
- Morse, Venerable Henry
- Mortification
- Mortmain
- Morton, John
- Morton, Robert
- Mosaic Legislation
- Mosaics
- Moschus, Johannes
- Moscow
- Moses
- Moses Bar Cephas
- Moses Maimonides, Teaching of
- Moses of Chorene
- Mossul
- Mostar and Markana-Trebinje
- Most Precious Blood, Feast of the
- Most Precious Blood, Archconfraternity of the
- Most Pure Heart of Mary, Feast of the
- Mosynoupolis
- Motet
- Motolinia, Toribio de Benavente
- Motu Proprio
- Mouchy, Antoine de
- Moufang, Franz Christoph Ignaz
- Moulins
- Mount Athos
- Mount Calvary, Congregations of
- Mount Carmel, Feast of Our Lady of
- Mount Saint Mary's College
- Movers, Franz Karl
- Moxos Indians
- Moy De Sons, Karl Ernst, Freiherr Von
- Moye, Ven. John Martin
- Moylan, Francis
- Moylan, Stephen
- Mozambique
- Mozarabic Rite
- Mozart, Wolfgang Amadeus
- Mozetena Indians
- Mozzetta
- Mozzi, Luigi
- Mrak, Ignatius
- Muchar, Albert Anton Von
- Mühlbacher, Engelbert
- Mulhall, Michael George
- Mulholland, St. Clair Augustine
- Mullanphy, John
- Müller, Adam Heinrich
- Müller, Johann
- Müller, Johann
- Müller, Karl
- Mullock, John T.
- Münch-Bellinghausen, Baron Eligius Franz Joseph von
- Mundwiler, Fintan
- Munich-Freising
- Munkács
- Münster
- Münster, University of
- Müntz, Eugène
- Mura, Saint
- Muratori, Luigi Antonio
- Muratorian Canon
- Murder
- Muret, Marc-Antoine
- Muri
- Murillo, Bartolomé Esteban
- Murner, Thomas
- Muro-Lucano
- Murray, John O'Kane
- Murray, Daniel
- Murray, Patrick
- Museums, Christian
- Mush
- Mush, John
- Music, Ecclesiastical
- Music of the Mass
- Musical Instruments in Church Services
- Musso, Cornelius
- Musti
- Musuros, Markos
- Mutis, José Celestino
- Muzzarelli, Alfonso
- Mylasa
- Myndus
- Myra
- Myrina
- Myriophytum
- Mysore
- Mysteries and Miracle Plays
- Mystery
- Mystical Body of the Church
- Mystical Marriage
- Mystical Theology
- Mysticism
- Nabo
- Nabor and Felix, Saints
- Nabuchodonosor
- Nacchiante, Giacomo
- Nacolia
- Nagasaki
- Nagpur
- Nahanes
- Nahum
- Nails, Holy
- Naim
- Name of Jesus, Religious Communities of the
- Name of Mary, Feast of the Holy
- Names, Christian
- Names, Hebrew
- Names of Jesus and Mary, Sisters of the Holy
- Namur
- Nancy
- Nantes
- Nanteuil, Robert
- Naples
- Napoleon I (Bonaparte)
- Napoleon III
- Napper, Venerable George
- Nardi, Jacopo
- Nardò
- Narni and Terni
- Narthex
- Nashville
- Nasoraeans
- Natal
- Natal Day
- Natalis, Alexander
- Natchez
- Natchitoches
- Nathan
- Nathanael
- Nathinites
- National Union, Catholic Young Men's
- Nativity of the Blessed Virgin Mary, Feast of the
- Natural Law
- Naturalism
- Nature
- Naturism
- Nausea, Frederic
- Navajo Indians
- Navarre
- Navarrete, Domingo Fernández
- Navarrete, Juan Fernández
- Navarrete, Martín Fernández
- Nave
- Nazarene
- Nazareth, Sisters of Charity of
- Nazareth
- Nazarite
- Nazarius, Saint
- Nazarius, John Paul
- Nazarius and Celsus, Saints
- Nazarius and Companions, Saint
- Nazianzus
- Neale, Leonard
- Nebo
- Nebo, Mount
- Nebraska
- Necessity
- Neckam, Alexander of
- Necrologies
- Necromancy
- Nectarius
- Negligence
- Nehemiah, Book of
- Neher, Stephan Jakob
- Nélaton, Auguste
- Nemore, Jordanus (Jordanis) de
- Nemrod
- Neocaesarea
- Neocaesarea
- Neophyte
- Neo-Platonism
- Neo-Pythagorean Philosophy
- Neo-Scholasticism
- Nephtali
- Nepi and Sutri
- Nepveu, Francis
- Nereus and Achilleus, Domitilla and Pancratius, Saints
- Neri, Antonio
- Neri, Saint Philip Romolo
- Nerinckx, Charles
- Nero
- Nerses I-IV
- Nerses of Lambron
- Nestorius and Nestorianism
- Netherlands, The
- Netter, Thomas
- Neugart, Trudpert
- Neum
- Neumann, Johann Balthasar
- Neumayr, Franz
- Neusohl
- Neutra
- Nevada
- Neve
- Nève, Felix-Jean-Baptiste-Joseph
- Nevers
- Neville
- New Abbey
- Newark
- Newbattle
- New Caledonia
- Newdigate, Blessed Sebastian
- Newfoundland
- New Guinea
- New Hampshire
- Newhouse, Abbey of
- New Jersey
- Newman, John Henry
- New Mexico
- New Norcia
- New Orleans
- New Pomerania
- Newport (England)
- New Testament
- New Testament, Canon of the
- Newton, John
- New Year's Day
- New York (Archdiocese)
- New York (State)
- New Zealand
- Niagara University
- Nicaea
- Nicaea, First Council of
- Nicaea, Second Council of
- Nicaragua
- Nicastro
- Niccola Pisano
- Nice
- Nicene Creed
- Nicephorus, Saint
- Nicéron, Jean-Pierre
- Nicetas
- Nicetius, Saint
- Niche
- Nicholas I, Saint, Pope
- Nicholas II, Pope
- Nicholas III, Pope
- Nicholas IV, Pope
- Nicholas V, Pope
- Nicholas Garlick, Venerable
- Nicholas Justiniani
- Nicholas of Cusa
- Nicholas of Flüe, Blessed
- Nicholas of Gorran
- Nicholas of Lyra
- Nicholas of Myra, Saint
- Nicholas of Osimo
- Nicholas of Strasburg
- Nicholas of Tolentino, Saint
- Nicholas Owen, Saint
- Nicholas Pieck, Saint
- Nichols, Venerable George
- Nicholson, Francis
- Nicodemus
- Nicodemus, Gospel of
- Nicolaï, Jean
- Nicolaites
- Nicolas, Armella
- Nicolas, Auguste
- Nicolaus Germanus
- Nicole, Pierre
- Nicolet
- Nicolò de' Tudeschi
- Nicomedes, Saint
- Nicomedia
- Nicopolis
- Nicopolis
- Nicopolis
- Nicosia
- Nicosia
- Nicotera and Tropea
- Nider, John
- Nieremberg y Otin, Juan Eusebio
- Niessenberger, Hans
- Niger, Peter George
- Nigeria
- Nihilism
- Nihus, Barthold
- Nikolaus von Dinkelsbühl
- Nikon
- Nilles, Nikolaus
- Nilopolis
- Nilus, Saint
- Nilus the Younger
- Nimbus
- Nîmes
- Nimrod
- Ninian, Saint
- Nirschl, Joseph
- Nisibis
- Nithard
- Noah
- Noah's Ark
- Noailles, Louis-Antoine de
- Nobili, Robert de'
- Noble, Daniel
- Nocera
- Nocera dei Pagani
- Nocturns
- Nogaret, Guillaume de
- Nola
- Nola, Giovanni Marliano da
- Nolasco, Saint Peter
- Nollet, Jean-Antoine
- Nominalism, Realism, Conceptualism
- Nomination
- Nomocanon
- Nonantola
- Nonconformists
- None
- Non Expedit
- Non-Jurors
- Nonnotte, Claude-Adrien
- Nonnus
- Norbert, Saint
- Norbertines
- Norcia
- Norfolk, Catholic Dukes of
- Noris, Henry
- Normandy
- Norris, Sylvester
- Norsemen
- Northampton
- North Carolina
- Northcote, James Spencer
- North Dakota
- Northern Territory
- Northmen
- Norton, Christopher
- Norway
- Norwich, Ancient Diocese of
- Notaries
- Notburga, Saint
- Notburga
- Nothomb, Jean-Baptiste
- Notitia Dignitatum
- Notitiae Episcopatuum
- Notitia Provinciarum et Civitatum Africae
- Notker
- Noto
- Notoriety, Notorious
- Notre Dame de Montreal, Congregation of
- Notre-Dame de Sion, Congregation of
- Notre-Dame de Namur, Institute of
- Notre Dame, School Sisters of
- Notre Dame, Sisters of (of Cleveland, Ohio)
- Notre Dame, University of
- Nottingham
- Nourrisson, Jean-Felix
- Novara
- Nova Scotia
- Novatianism
- Novatus, Saint
- Novello, Blessed Agostino
- Novena
- Novice
- Nubia
- Nueva Cáceres
- Nueva Pamplona
- Nueva Segovia
- Nugent, Francis
- Nugent, James
- Numbers, Use of, in the Church
- Numismatics
- Nun of Kent
- Nunc Dimittis
- Nuncio
- Nunez, Pedro
- Nuns
- Nuptial Mass
- Nuremberg
- Nusco
- Nussbaum, Johann Nepomuk von
- Nutter, Robert, Ven.
- Nuyens, Wilhelmus
- Nyassa
- Nympha, Tryphon, and Respicius
- Nyssa
- Nyssa
- Oakeley, Frederick
- O Antiphons
- Oates's Plot
- Oaths
- Oaths, English Post-Reformation
- Oaxaca
- Obazine, Monastery of
- Obba
- Obedience
- Obedience, Religious
- Obedientiaries
- Oblate Sisters of Providence
- Oblates of Mary Immaculate
- Oblates of St. Francis de Sales
- Oblati, Oblatae, Oblates
- Obligation
- O'Braein, Tighernach
- Obregonians
- Obreption
- O'Brien, Terence Albert
- O'Bruadair, David
- Observatory, Vatican
- O'Callaghan, Edmund Bailey
- O'Carolan, Torlogh
- Occam, William of
- Occasionalism
- Occasions of Sin
- Occleve, Thomas
- Occult Art, Occultism
- Occurrence
- Oceania, Vicariate Apostolic of Central
- Ockham, William of
- O'Connell, Daniel
- O'Conor, Charles
- O'Conor, Charles
- Octave
- Octavarium Romanum
- O'Cullenan, Gelasius
- O'Curry, Eugene
- O'Daly, Daniel
- O'Daly, Donogh Mór
- Odense, Ancient See of Odense
- Odescalchi, Carlo
- O Deus Ego Amo Te
- O'Devany, Cornelius
- Odilia, Saint
- Odilo, Saint
- Odin, John Mary
- Odington, Walter
- Odo, Saint
- Odo, Saint
- O'Donnell, Edmund
- O'Donovan, John
- Odo of Cambrai, Blessed
- Odo of Canterbury
- Odo of Cheriton
- Odo of Glanfeuil
- O'Dugan, John
- O'Dwyer, Joseph
- Oecolampadius, John
- Oeconomus, Episcopal
- Oecumenius
- Oertel, John James Maximilian
- Oettingen
- Offa
- Offerings
- Offertory
- Office, Divine
- Office of the Dead
- O'Fihely, Maurice
- O Filii et Filiae
- Ogdensburg, Diocese of
- Oggione, Marco D'
- Ogilvie, John, Venerable
- Ogliastra
- O'Growney, Eugene
- O'Hagan, John
- O'Hagan, Thomas
- O'Hanlon, John
- O'Hara, Theodore
- O'Hely, Patrick
- O'Herlahy, Thomas
- O'Higgins, Ambrose and Bernard
- Ohio
- Ohler, Aloys Karl
- O'Hurley, Dermond
- O'Hussey, Maelbrighte
- Oil of Saints
- Oils, Holy
- Ointment in Scripture
- Ojeda, Alonso de
- Okeghem, Jean d'
- Oklahoma
- Olaf Haraldson, Saint
- Oláh, Nicolaus
- Olba
- Old Catholics
- Old Chapter, The
- Oldcorne, Ven. Edward
- Oldenburg
- Old Hall (St. Edmund's College)
- Oldham, Hugh
- Oldoini, Augustino
- Old Testament
- Old Testament, Canon of the
- O'Leary, Arthur
- Olenus
- Olesnicki, Zbigniew
- Olier, Jean-Jacques
- Olinda
- Oliva
- Oliva, Gian Paolo
- Olivaint, Pierre
- Oliver, George
- Olivet, Mount
- Olivetans
- Olivi, Pierre Jean
- Olivier de la Marche
- Ollé-Laprune, Léon
- Olmütz
- O'Loghlen, Michael
- Olympias, Saint
- Olympus
- Omaha
- Ombus
- O'Meara, Kathleen
- Omer, Saint
- Omission
- Omnipotence
- O'Neill, Hugh
- O'Neill, Owen Roe
- Onias
- Ontario
- Ontologism
- Ontology
- Oostacker, Shrine of
- Opening Prayer (in the Mass)
- Ophir
- Oporto
- Oppenordt, Gilles-Marie
- Oppido Mamertina
- Optatus, Saint
- Optimism
- Option, Right of
- O'Queely, Malachias
- Oracle
- Oran
- Orange, Councils of
- Orange Free State
- Orange River
- Orans
- Orate Fratres
- Oratorio
- Oratory
- Oratory of Saint Philip Neri, The
- Oratory, French Congregation of the
- Orbellis, Nicolas d'
- Orcagna
- Orcistus
- Ordeals
- Ordericus Vitalis
- Orders, Holy
- Orders, The Military
- Ordinariate
- Ordinary
- Ordines Romani
- Oregon
- Oregon City
- O'Reilly, Bernard
- O'Reilly, Edmund
- O'Reilly, Edmund
- O'Reilly, Hugh
- O'Reilly, John Boyle
- O'Reilly, Myles William Patrick
- Oremus
- Orense
- Oresme, Nicole
- Organ
- Organic Articles, The
- Oria
- Oriani, Barnaba
- Oriental Study and Research
- Orientation of Churches
- Orientius
- Oriflamme
- Origen and Origenism
- Original Sin
- Orihuela
- Oriol, Saint Joseph
- Oristano
- Orkneys
- Orlandini, Niccolò
- Orléans
- Orléans, Councils of
- Orley, Barent Van
- Orme, Philibert de l'
- Oropus
- O'Rorke, Patrick Henry
- Orosius, Paulus
- Orphans and Orphanages
- Orsi, Giuseppe Agostino
- Orsini
- Orsisius
- Ortelius, Abraham
- Orthodox Church
- Orthodoxy
- Orthodoxy, Feast of
- Orthosias
- Ortolano Ferrarese
- Orval
- Orvieto
- Ory, Matthieu
- Osaka
- O Salutaris Hostia
- Osbald
- Osbaldeston, Edward, Venerable
- Osbern
- Oscott (St. Mary's College)
- Osee
- Osimo
- Oslo, Ancient See of
- Osma
- Osmund, Saint
- Osnabrück
- Ossat, Arnaud d'
- Ossory, Diocese of
- Ostensorium
- Ostia and Velletri
- Ostiensis
- Ostracine
- Ostraka, Christian
- Ostrogoths
- O'Sullivan Beare, Philip
- Oswald, Saint
- Oswald, Saint
- Oswin, Saint
- Otfried of Weissenburg
- Othlo
- Othmar, Saint
- Otho, Marcus Salvius
- O'Toole, Saint Lawrence
- Otranto
- Ottawa, Archdiocese of
- Ottawa, University of
- Otto, Saint
- Otto I, the Great
- Otto II
- Otto III
- Otto IV
- Ottobeuren
- Otto of Freising
- Otto of Passau
- Otto of St. Blasien
- Ouen, Saint
- Our Father, The
- Our Lady, Help of Christians, Feast of
- Our Lady of Charity of the Good Shepherd
- Our Lady of Good Counsel, Feast of
- Our Lady of the Fields, Brothers of
- Our Lady of the Snow
- Our Lady of Perpetual Help
- Our Lady of Perpetual Succour
- Overbeck, Friedrich
- Overberg, Bernhard Heinrich
- Overpopulation, Theories of
- Oviedo
- Owen, Saint
- Owen, Saint Nicholas
- Oxenford, John
- Oxenham, Henry Nutcombe
- Oxford
- Oxford, University of
- Oxford Movement, The
- Oxyrynchus
- Ozanam, Antoine-Frédéric
- Ozanam, Jacques
- Ozias
- Pacandus
- Pacca, Bartolommeo
- Pachomius, Saint
- Pachtler, George Michael
- Pacificus
- Pacificus of Ceredano, Blessed
- Pacificus of San Severino, Saint
- Pacioli, Lucas
- Paderborn
- Padilla, Juan de
- Padua
- Padua, University of
- Paganism
- Pagano, Mario
- Page, Venerable Anthony
- Pagi, Antoine
- Pagi, François
- Pagnino, Santes
- Painting, Religious
- Pakawá Indians
- Palaeography
- Palaeontology
- Palafox y Mendoza, Juan de
- Palasor, Venerable Thomas
- Palatinate, Rhenish
- Palatini
- Palawan
- Palencia
- Paleopolis
- Paleotti, Gabriele
- Palermo
- Palermo, University of
- Palestrina
- Palestrina, Giovanni Pierluigi da
- Paley, Frederick Apthorp
- Pall
- Pall, Funeral
- Palladio, Andrea
- Palladius, Saint
- Palladius
- Pallavicino, Pietro Sforza
- Pallium
- Pallotti, Vincent Mary
- Palma Vecchio
- Palmer, William
- Palmieri, Domenico
- Palmieri, Luigi
- Palm in Christian Symbolism
- Palm Sunday
- Palmyra
- Palou, Francisco
- Paltus
- Paludanus, Peter
- Pamelius
- Pamiers
- Pammachius, Saint
- Pamphilus of Caesarea, Saint
- Pamplona
- Panama
- Pancratius and Domitilla, Nereus and Achilleus, Saints
- Pandects
- Pandulph
- Panemotichus
- Pange Lingua Gloriosi
- Panigarola, Francesco
- Pannartz, Arnold
- Pano Indians
- Panopolis
- Panpsychism
- Pantaenus
- Pantaleon, Saint
- Pantheism
- Panvinio, Onofrio
- Panzani, Gregorio
- Paoli, Venerable Angelo
- Papacy, The
- Pápago Indians
- Papal Arbitration
- Papal Elections
- Papal Mint
- Papal Rescripts
- Papal States
- Paphnutius
- Paphos
- Papias, Saint
- Papiensis, Bernardus
- Papini, Nicholas
- Parables
- Parabolani
- Paracelsus, Theophrastus
- Paraclete
- Paradise, Terrestrial
- Para du Phanjas, François
- Paraetonium
- Paraguay
- Paralipomenon, Books of
- Parahyba
- Parallelism
- Parallelism, Psycho-Physical
- Paralus
- Paraná
- Parasceve
- Paray-le-Monial
- Pardies, Ignace-Gaston
- Pardons of Brittany
- Paré, Ambroise
- Paredes, Blessed Mary Anne de
- Pareja, Francisco
- Parents
- Parenzo-Pola
- Parini, Giuseppe
- Paris
- Paris, University of
- Paris, Alexis-Paulin
- Paris, Gaston-Bruno-Paulin
- Paris, Matthew
- Paris Commune, Martyrs of the
- Parish
- Parium
- Park, Abbey of the
- Parkinson, Anthony
- Parlais
- Parlatore, Filippo
- Parma
- Parmentier, Antoine-Augustin
- Parmigiano, Il
- Parnassus
- Parochial Mass
- Paraecopolis
- Parochial Missions, Catholic
- Parrenin, Dominique
- Parsis
- Particular Judgment
- Partnership
- Paruta, Paolo
- Pascal, Blaise
- Pascal Baylon, Saint
- Pasch
- Paschal I, Pope
- Paschal II, Pope
- Paschal III (Antipope)
- Paschal Candle
- Paschal Lamb
- Paschal Tide
- Paschasius, Saint
- Paschasius Radbertus, Saint
- Passaglia, Carlo
- Passau
- Passerat, Joseph, Venerable
- Passignano, Domenico
- Passionei, Domenico
- Passionists
- Passion Music
- Passion of Christ, Commemoration of the
- Passion of Jesus Christ
- Passion of Jesus Christ in the Four Gospels
- Passion Offices
- Passion Plays
- Passions
- Passion Sunday
- Passiontide
- Passos
- Passover
- Pasteur, Louis
- Pasto, Diocese of
- Pastor
- Pastoral Epistles (Timothy and Titus)
- Pastoral Staff
- Pastoral Theology
- Pastoureaux, Crusade of the
- Patagonia
- Patara
- Paten
- Patenson, Venerable William
- Pater Noster
- Pathology, Mental
- Patmore, Coventry
- Patmos
- Patras
- Patriarch
- Patriarch and Patriarchate
- Patrician Brothers
- Patrick, Saint
- Patrick's Purgatory, Saint
- Patrizi, Francis Xavier
- Patrology
- Patron and Patronage
- Patron Saints
- Patronage of Our Lady, Feast of the
- Patti, Diocese of
- Paul, Saint
- Paul I, Pope
- Paul II, Pope
- Paul III, Pope
- Paul IV, Pope
- Paul V, Pope
- Paul and John, Saints
- Pauli, Johannes
- Paulicians
- Paulist Fathers
- Paul of Burgos
- Paul of Middelburg
- Paul of Samosata
- Paul of the Cross, Saint
- Paul the Deacon
- Paul the Hermit, Saint
- Paul the Simple, Saint
- Paul-without-the-Walls, Saint
- Paula, Saint
- Paulinus, Saint
- Paulinus, Saint
- Paulinus II, Saint
- Paulinus a S. Bartholomaeo
- Paulinus of Pella
- Paulists
- Paulus Diaconus
- Paulus Venetus
- Pavia
- Pavia, University of
- Pavillon, Nicolas
- Pax
- Pax in the Liturgy
- Payeras, Mariano
- Pázmány, Peter
- Payne, Blessed John
- Peace Congresses
- Peace of the Church
- Peasants, War of the (1524-25)
- Peba Indians
- Pecham, John
- Pecock, Reginald
- Pectoral
- Pectorale
- Pectorius of Autun
- Pednelissus
- Pedro de Cordova
- Pelagia
- Pelagius I, Pope
- Pelagius II, Pope
- Pelagius and Pelagianism
- Pelargus, Ambrose
- Pelisson-Fontanier, Paul
- Pella
- Pelletier, Pierre-Joseph
- Pellico, Silvio
- Pellissier, Guillaume
- Pelotas
- Pelouze, Théophile-Jules
- Peltrie, Madeleine de la
- Pelusium
- Pembroke
- Peña, Francisco
- Penal Laws
- Peñalver y Cardenas, Luis Ignatius
- Penance (as a Virtue)
- Penance, Sacrament of
- Pendleton, Henry
- Penelakut Indians
- Penitentes, Los Hermanos
- Penitential Canons
- Penitential Orders
- Penitents, Confraternities of
- Penne and Atri, Diocese of
- Pennsylvania
- Penobscot Indians
- Pension, Ecclesiastical
- Pentacomia
- Pentapolis
- Pentateuch
- Pentecost
- Pentecost (Jewish Feast)
- Peoria
- Peoria Indians
- Pepin the Short
- Peppergrass, Paul
- Perboyre, Blessed Jean-Gabriel
- Percy, Blessed Thomas
- Percy, John
- Peregrinus
- Pereira, Benedict
- Perez, Juan
- Pérez de Hita, Ginés
- Perfection, Christian and Religious
- Pergamus
- Perge
- Pergolesi, Giovanni Battista
- Pericui Indians
- Périgueux
- Periodi
- Periodical Literature, Catholic
- Perjury
- Permaneder, Franz Michael
- Pernter, Joseph Maria
- Perpetua and Felicitas, Saints
- Perpetual Adoration
- Perpetual Adoration, Religious of
- Perpetual Adoration, Religious of the
- Perpetual Adoration, Sisters of the
- Perpetual Adorers of the Blessed Sacrament
- Perpetual Help, Our Lady of, Sisters of
- Perpetual Help, Our Lady of
- Perpetual Succour, Our Lady of
- Perpetuus, Saint
- Perpignan, Diocese of
- Perpignan, University of
- Perraud, Adolphe
- Perrault, Charles
- Perrault, Claude
- Perreyve, Henri
- Perrone, Giovanni
- Perry, Stephen Joseph
- Persecution
- Persecutions, Coptic
- Perseverance, Final
- Persia
- Persian Rite
- Persico, Ignatius
- Person
- Person, Ecclesiastical
- Personality
- Persons, Robert
- Perth
- Pertinax, Publius Helvius
- Peru
- Perugia
- Perugia, University of
- Perugino
- Peruzzi, Baldassare
- Pesaro
- Pescennius Niger
- Pesch, Tilman
- Pescia
- Pessimism
- Pessinus
- Pestalozzi and Pestalozzianism
- Pétau, Denis
- Peter, Basilica of Saint
- Peter, Chair of
- Peter, Saint
- Peter, Saint, Epistles of
- Peter, Sarah
- Peter, Tomb of Saint
- Peter Baptist, Saint, and Twenty-Five Companions
- Peterborough
- Peter Canisius, Blessed
- Peter Cantor
- Peter Cellensis
- Peter Chrysologus, Saint
- Peter Claver, Saint
- Peter Comestor
- Peter Damian, Saint
- Peter de Blois
- Peter de Honestis
- Peter de Regalado, Saint
- Peter de Vinea
- Peter Faber, Saint
- Peter Fourier, Saint
- Peter Fullo
- Peter Gonzalez, Saint
- Peter Igneus, Blessed
- Peter Lombard
- Peter-Louis-Marie Chanel, Saint
- Peter Mongus
- Peter Nolasco, Saint
- Peter of Alcántara, Saint
- Peter of Alexandria, Saint
- Peter of Aquila
- Peter of Arbues, Saint
- Peter of Auvergne
- Peter of Bergamo
- Peter of Montboissier, Blessed
- Peter of Poitiers
- Peter of Sebaste, Saint
- Peter of Verona, Saint
- Peter Snow, Venerable
- Peterspence
- Peterssen, Gerlac
- Peter the Hermit
- Peter Urseolus, Saint
- Petinessus
- Petit-Didier, Matthieu
- Petitions to the Holy See
- Petra
- Petrarch, Francesco
- Petre, Family of
- Petrobrusians
- Petronilla, Saint
- Petronius, Saint
- Petropolis
- Petrus Alfonsus
- Petrus Bernardinus
- Petrus Diaconus
- Petrus de Natalibus
- Petun Nation
- Peuerbach, George von
- Peutinger, Conrad
- Peyto, William
- Pez
- Pfanner, Franz
- Pfefferkorn, Johannes
- Pfister, Adolf
- Pflug, Julius Von
- Pforta
- Phacusa
- Pharao
- Pharbaetus
- Pharisees
- Pharsalus
- Phaselis
- Phasga
- Phenomenalism
- Philadelphia (Lydia)
- Philadelphia (Pennsylvania)
- Philanthropinism
- Philastrius, Saint
- Philemon
- Philip the Apostle, Saint
- Philip II (Augustus)
- Philip II
- Philip IV
- Philip of Jesus, Saint
- Philip of the Blessed Trinity
- Philip the Arabian
- Philip Romolo Neri, Saint
- Philippi
- Philippi
- Philippians, Epistle to the
- Philippine Islands
- Philippopolis
- Philippopolis
- Philips, Peter
- Philistines
- Phillip, Robert
- Phillips, George
- Philo Judaeus
- Philomelium
- Philomena, Saint
- Philosophy
- Philoxenus
- Phocaea
- Phoenicia
- Photinus
- Photius of Constantinople
- Phylacteries
- Physics, History of
- Physiocrats
- Physiologus
- Piacenza
- Pianciani, Giambattista
- Pianô Carpine, Giovanni da
- Piatto Cardinalizio
- Piatus of Mons
- Piauhy
- Piazza Armerina
- Piazzi, Giuseppe
- Pibush, John
- Picard, Jean
- Piccolomini, Alessandro
- Piccolomini-Ammannati, Jacopo
- Pichler
- Pichler, Vitus
- Pickering, Ven. Thomas
- Piconio, Bernadine a
- Picture Bibles
- Picquet, François
- Pie, Louis-Edouard-Désiré
- Pieck, Saint Nicholas
- Piedmont
- Piel, Peter
- Pie Pelicane, Jesu, Domine
- Pierius
- Pierre de Castelnau, Blessed
- Pierre de Maricourt
- Pierron, Jean
- Pierson, Philippe
- Pietism
- Pighius, Albert
- Pignatelli, Venerable Giuseppe Maria
- Pike, William
- Pilar, Nuestra Señora del
- Pilate, Pontius
- Pilchard, Venerable Thomas
- Pileolus
- Pilgrimage of Grace
- Pilgrimages
- Piligrim
- Pillar of Cloud/Fire
- Pima Indians
- Pinara
- Pinar del Rio
- Pindemonte, Ippolito
- Pineda, John de
- Pinerolo
- Pingré, Alexandre Guy
- Pinna da Encarnaçao, Mattheus
- Pinto, Fernão Mendes
- Pinturicchio
- Pinzón, Martín Alonso
- Piombo, Sebastiano del
- Pionius, Saint
- Pious Fund of the Californias, The
- Pious Society of Missions, The
- Piranesi, Giambattista
- Pirhing, Ernricus
- Pirkheimer
- Piro Indians
- Pisa
- Pisa, Council of
- Pisa, University of
- Pisano, Andrea
- Pisano, Niccola
- Piscataway Indians
- Piscina
- Pise, Charles Constantine
- Pisidia
- Pistoia, Synod of
- Pistoia and Prato
- Pistorius, Johann
- Pithou, Pierre
- Pitoni, Joseph
- Pitra, Jean-Baptiste-François
- Pitts, John
- Pittsburgh
- Pityus
- Pius I, Pope Saint
- Pius II, Pope
- Pius III, Pope
- Pius IV, Pope
- Pius V, Pope Saint
- Pius VI, Pope
- Pius VII, Pope
- Pius VIII, Pope
- Pius IX, Pope
- Pius X, Pope Saint
- Piusverein
- Pizarro, Francisco
- Placidus, Saint
- Plagues of Egypt
- Plain Chant
- Plantaganet, Henry Beaufort
- Plantin, Christophe
- Plants in the Bible
- Plasencia
- Plateau, Joseph-Antoine
- Platina, Bartolomeo
- Plato and Platonism
- Play, Pierre-Guillaume-Frédéric Le
- Plegmund
- Plenarium
- Plenary Council
- Plessis, Joseph-Octave
- Plethon, Georgius Gemistus
- Plock
- Plowden, Charles
- Plowden, Edmund
- Plowden, Francis
- Plowden, Robert
- Plowden, Thomas
- Plowden, Thomas Percy
- Plumier, Charles
- Plunket, Blessed Oliver
- Pluscarden Priory
- Plymouth
- Pneumatomachi (Macedonians)
- Poetry, Hebrew, of the Old Testament
- Poggio Bracciolini, Giovanni Francesco
- Poggio Mirteto
- Pogla
- Poitiers
- Poland
- Polding, John Bede
- Pole, Blessed Margaret
- Pole, Reginald
- Polemonium
- Poleni, Giovanni
- Poles in the United States
- Policastro
- Polignac, Melchior de
- Polish Literature
- Politi, Lancelot
- Politian
- Political Economy, Science of
- Pollajuolo, Antonio and Piero Benci
- Polo, Marco
- Polybotus
- Polycarp, Saint
- Polycarpus
- Polyglot Bibles
- Polystylum
- Polytheism
- Pomaria
- Pombal, Marquis de
- Pomerania
- Pompeiopolis
- Pomponazzi, Pietro
- Ponce, John
- Ponce de León, Juan
- Poncet, Joseph Anthony de la Rivière
- Pondicherry
- Pontefract Priory
- Pontian, Pope Saint
- Pontifical Colleges
- Pontifical Decorations
- Pontifical Mass
- Pontificale
- Pontificalia
- Pontigny, Abbey of
- Pontius Carbonell
- Pontius Pilate
- Pontus
- Pools in Scripture
- Poona
- Poor, Care of, by the Church
- Poor, Little Sisters of the
- Poor Brothers of St. Francis Seraphicus
- Poor Catholics
- Poor Child Jesus, Sisters of the
- Poor Clares
- Poor Handmaids of Jesus Christ
- Poor, Sisters of the, of St. Francis
- Poor Handmaids of the Mother of God
- Poor Laws
- Popayán
- Pope, The
- Popes, Chronological Lists of the
- Popes, Election of the
- Popes, List of
- Pope, Alexander
- Poppo, Saint
- Popular Devotions
- Population, Theories of
- Porch (or Vestibule, in Architecture)
- Pordenone, Giovanni Antonio
- Pordenone, Ordric of
- Pormort, Ven. Thomas
- Porphyreon
- Porphyrius, Saint
- Porrecta, Serafino
- Porta, Carlo
- Porta, Giacomo della
- Portalegre
- Port Augusta
- Port-au-Prince
- Porter, George
- Portable Altar
- Porter
- Portiuncula
- Portland
- Port Louis
- Porto Alegre
- Porto Alegre
- Porto and Santa-Rufina
- Port of Spain
- Porto Rico
- Portoviejo
- Portraits of the Apostles
- Port-Royal
- Portsmouth
- Portugal
- Portuguese Literature
- Portuguese East Africa
- Portuguese West Africa
- Port Victoria
- Positivism
- Possenti, Blessed Gabriel
- Possession, Demonical
- Possevinus, Antonius
- Possidius, Saint
- Postcommunion
- Postgate, Nicholas
- Postulant
- Postulation
- Potawatomi Indians
- Pothier, Robert Joseph
- Pouget, Jean-François-Albert du
- Pounde, Thomas
- Poussin, Nicolas
- Poverty
- Poverty and Pauperism
- Powel, Philip
- Powell, Blessed Edward
- Poynter, William
- Pozzo, Andreas
- Pozzuoli
- Prades, Jean-Martin de
- Prado, Jerome de
- Praelatus Nullius
- Pragmatic Sanction
- Pragmatism
- Prague
- Prague, University of
- Praxeas
- Praxedes and Pudentiana
- Pray, George
- Pray Brethren
- Prayer
- Prayer, Lord's
- Prayer-Books
- Prayer of Christ, Feast of the
- Prayer of Quiet
- Prayers for the Dead
- Preacher Apostolic
- Preachers, Order of
- Preadamites
- Prebend
- Precaria
- Precedence
- Precentor
- Precept
- Precious Blood
- Precious Blood, Archconfraternity of the Most
- Precious Blood, Congregation of the Most
- Precious Blood, Congregations of the
- Precious Blood, Feast of the Most
- Precipiano, Humbert-Guillaume de, Count
- Preconization
- Predestinarianism
- Predestination
- Preface
- Prefect Apostolic
- Prefecture Apostolic (Supplemental List)
- Prelate
- Prémare, Joseph Henri Marie de
- Premonstratensian Canons
- Prémontré, Abbey of
- Presbyterianism
- Presbytery
- Prescription
- Prescription in Civil Jurisprudence
- Presence, Real
- Presence of God
- Presentation, Feast of the
- Presentation, Order of the
- Presentation, Religious Congregations of the
- Presentation, Right of
- Presentation Brothers
- Presentation of Mary, Congregation of the
- Presentation of the Blessed Virgin Mary, Feast of the
- Prester John
- Preston, Thomas
- Preston, Thomas Scott
- Presumption
- Presumption
- Pretorium
- Pride
- Priene
- Priest
- Priest, Assistant
- Priest, High
- Priesthood
- Priestly Perseverance, Association of
- Priests, Confraternities of
- Priests' Communion League
- Priests' Eucharistic League
- Primacy
- Primadicci, James
- Primate
- Prime
- Primer, The
- Primicerius
- Primus and Felician, Saints
- Prince Albert, Diocese of
- Prior
- Prioress
- Priory
- Prisca, Saint
- Priscianus
- Priscilla and Aquila
- Priscillianism
- Prisons
- Prisons, Ecclesiastical
- Privilege
- Privileged Altar
- Privileges, Ecclesiastical
- Proba, Faltonia
- Probabilism
- Probus, Marcus Aurelius
- Probus, Tarachus, and Andronicus, Saints
- Processional, Roman
- Processional Cross
- Processions
- Processus and Martinian, Saints
- Proclus, Saint
- Proconnesus
- Procopius of Caesarea
- Procter, Adelaide Anne
- Procurator
- Profession, Religious
- Promise, Divine
- Promotor Fidei
- Promulgation
- Proof
- Propaganda, Sacred Congregation of
- Propagation of the Faith, The Society for the
- Property
- Property, Ecclesiastical
- Property, Ecclesiastical, in the United States
- Prophecy
- Prophecy, Prophet, and Prophetess
- Proprium
- Proschko, Franz Isidor
- Prose or Sequence
- Proselyte
- Proske, Karl
- Prosper of Aquitaine, Tiro
- Protasius and Gervasius, Saints
- Protector, Altar
- Protectorate of Missions
- Protectories
- Protestant Episcopal Church
- Protestantism
- Prothonotary Apostolic
- Protocol
- Protopope
- Protus and Hyacinth, Saints
- Prout, Father
- Provancher, Léon Abel
- Proverbs, Book of
- Providence, Congregations of (I)
- Providence, Congregations of (II)
- Providence, Congregations of (III)
- Providence, Congregations of (IV)
- Providence, Congregations of (V)
- Providence, Diocese of
- Providence, Divine
- Province, Ecclesiastical
- Provincial
- Provincial Council
- Provision, Canonical
- Provisors, Statute of
- Provost
- Prudence
- Prudentius, Aurelius Clemens
- Prudentius
- Prüm
- Prusias ad Hypium
- Prussia
- Przemysl
- Przemysl, Sambor, and Sanok
- Psalms
- Psalms, Alphabetic
- Psalterium
- Psaume, Nicholas
- Psellus, Michael
- Psychology
- Psychotherapy
- Ptolemais
- Ptolemais
- Ptolemy the Gnostic
- Public Authority
- Publican
- Public Honesty (Decency)
- Pueblo Indians
- Puget, Pierre
- Pugh, George Ellis
- Pugin, Augustus Welby Northmore
- Puiseux, Victor-Alexandre
- Pulaski, Casimir
- Pulati
- Pulcheria, Saint
- Pulci, Luigi
- Pullen, Robert
- Pullus, Robert
- Pulpit
- Punishment, Capital
- Puno
- Purcell, John Baptist
- Purgative Way
- Purgatorial Societies
- Purgatory
- Purgatory, St. Patrick's
- Purim
- Puritans
- Pusey and Puseyism
- Pustet
- Putative Marriage
- Puteanus, Erycius
- Putzer, Joseph
- Puvis de Chavannes, Pierre
- Puyallup Indians
- Pyrker, Johann Ladislaus von Oberwart
- Pyrrhonism
- Pythagoras and Pythagoreanism
- Pyx
- Quadragesima
- Quadratus
- Quakers
- Quality
- Quam singulari
- Quamichan Indians
- Quantity
- Quapaw Indians
- Quarantines
- Quaresmius, Franciscus
- Quebec, Archdiocese of
- Quebec, The Province of
- Quelen, Hyacinthe-Louis De
- Quem terra, pontus, sidera
- Queen's Daughters
- Quercia, Jacopo Della
- Querétaro, Diocese of
- Quesnel, Pasquier
- Quevedo, Juan de
- Quiche
- Quichua Indians
- Quicumque Christum Quaertis
- Quierzy, Councils of
- Quiet, Prayer of
- Quietism
- Quilon, Diocese of
- Quimper, Diocese of
- Quin, Michael Joseph
- Quinctianus, Saints
- Quiñones, Francis
- Quinquagesima
- Quintana, Agustín
- Quiricus and Julitta
- Quirini, Angelo Maria
- Quirinus, Saints
- Quito, Archdiocese of
- Qur'an, The
- Rabanus, Blessed Maurus Magnentius
- Rabbi and Rabbinism
- Rabbulas
- Rabelais, François
- Raccolta
- Race, Human
- Race, Negro
- Rachel
- Racine, Jean
- Rader, Matthew
- Radewyns, Florens
- Radowitz, Joseph Maria von
- Radulph of Rivo
- Raffeix, Pierre
- Ragueneau, Paul
- Ragusa
- Raich, Johann Michael
- Rail, Altar
- Raimondi, Marcantonio
- Rainald of Dassel
- Rajpootana
- Râle, Sebastian
- Ralph Crockett, Venerable
- Ralph Milner, Venerable
- Ralph Sherwin, Blessed
- Ram, Pierre François Xavier de
- Ramatha
- Rambler, The
- Rameau, Jean-Philippe
- Ramsey Abbey
- Ramus, Peter
- Rancé, Jean-Armand le Bouthillier de
- Randall, James Ryder
- Ransom, Feast of Our Lady of
- Raphael, Saint
- Raphael
- Raphoe
- Rapin, René
- Raskolniks
- Räss, Andreas
- Rathborne, Joseph
- Ratherius of Verona
- Rationale
- Ratio Studiorum
- Rationalism
- Ratisbon
- Ratisbonne, Maria Alphonse
- Ratisbonne, Maria Theodor
- Ratramnus
- Ratzeburg, Ancient See of
- Ratzinger, Georg
- Rauscher
- Ravalli, Antonio
- Ravenna
- Ravesteyn, Josse
- Ravignan, Gustave Xavier Lacroix de
- Rawes, Henry Augustus
- Raymbault, Charles
- Raymond IV, of Saint-Gilles
- Raymond VI
- Raymond VII
- Raymond Lully
- Raymond Martini
- Raymond Nonnatus, Saint
- Raymond of Peñafort, Saint
- Raymond of Sabunde
- Raynaldi, Odorico
- Raynaud, Théophile
- Raynouard, Françpois-Juste-Marie
- Reading Abbey
- Real Presence of Christ in the Eucharist
- Realism, Nominalism, Conceptualism
- Reason
- Reason, Age of
- Recanati and Loreto
- Rechab and the Rechabites
- Recollection
- Reconciliation, Sacrament of
- Rector
- Rector Potens, Verax Deus
- Recusants, English
- Red Sea
- Redeemer, Feast of the Most Holy
- Redeemer, Knights of the
- Redemption
- Redemption in the Old Testament
- Redemptions, Penitential
- Redemptoristines
- Redemptorists
- Redford, Sebastion
- Redi, Francesco
- Reding, Augustine
- Reductions of Paraguay
- Referendarii
- Reformation, The
- Reformed Churches
- Reform of a Religious Order
- Refuge, Cities of
- Refuge, Sisters of Our Lady of Charity of the
- Regale, Droit de
- Regalia
- Regeneration
- Regensburg
- Regesta, Papal
- Reggio di Calabria
- Reggio dell' Emilia
- Regina
- Regina Coeli
- Reginald of Piperno
- Regino of Prüm
- Regionarii
- Regis, John Francis, Saint
- Régis, Jean-Baptiste
- Régis, Pierre Sylvain
- Registers, Parochial
- Regnault, Henri Victor
- Regulae Juris
- Regulars
- Reichenau
- Reichensperger, August
- Reichensperger, Peter
- Reifenstein
- Reiffenstuel, Johann Georg
- Reims
- Reims, Synods of
- Reinmar of Hagenau
- Reisach, Carl von
- Reisch, Gregor
- Relationship
- Relatives, Duties of
- Relativism
- Relics
- Religion
- Religion, Virtue of
- Religions, Statistics of
- Religious Life
- Religious Profession
- Reliquaries
- Remesiana
- Remigius, Saint
- Remigius of Auxerre
- Remiremont
- Remuzat, Ven. Anne-Madeleine
- Remy, Abbey of Saint
- Renaissance, The
- Renaudot, Eusebius
- Renaudot, Théophraste
- Reni, Guido
- Rennes
- Renty, Gaston Jean Baptiste de
- Renunciation
- Reordinations
- Reparation
- Repington, Philip
- Repose, Altar of
- Reputation (as Property)
- Requiem, Masses of
- Rerum Crerator Optime
- Rerum Deus Tenax Vigor
- Rerum Novarum
- Rescripts, Papal
- Reservation
- Reserved Cases
- Residence, Ecclesiastical
- Respicius, Tryphon, and Nympha
- Respighi, Lorenzo
- Responsorium
- Restitution
- Resurrection of Jesus Christ
- Resurrection, General
- Rethel, Alfred
- Retreat of the Sacred Heart, Congregation of
- Retreats
- Retz, Cardinal de
- Reuben
- Reuchlin, Johannes
- Reumont, Alfred von
- Reusens, Edmond
- Reuss
- Revelation
- Revelation, Book of
- Revelations, Private
- Revocation
- Revolution, English
- Revolution, French
- Rex Gloriose Martyrum
- Rex Sempiterne Caelitum
- Rey, Anthony
- Reynolds, William
- Rhaetia
- Rhaphanaea
- Rheinberger, Joseph Gabriel
- Rhenish Palatinate
- Rhesaena
- Rhinocolura
- Rhithymna
- Rhizus
- Rho, Giacomo
- Rhode Island
- Rhodes, Alexandre De
- Rhodes
- Rhodesia
- Rhodiopolis
- Rhodo
- Rhosus
- Rhymed Bibles
- Rhythmical Office
- Ribadeneira, Pedro de
- Ribas, Andrés Pérez De
- Ribe, Ancient See of, in Denmark (Jutland)
- Ribeirao Preto
- Ribera, Jusepe de
- Ricardus Anglicus
- Riccardi, Nicholas
- Ricci, Lorenzo
- Ricci, Matteo
- Riccioli, Giovanni Battista
- Rice, Edmund Ignatius
- Rich, St. Edmund
- Richard
- Richard I, King Of England
- Richard, Charles-Louis
- Richard de Bury
- Richard de la Vergne, François-Marie-Benjamin
- Richard de Wyche, Saint
- Richard Fetherston, Blessed
- Richard of Cirencester
- Richard of Cornwall
- Richard of Middletown
- Richard of St. Victor
- Richard Thirkeld, Blessed
- Richard Whiting, Blessed
- Richardson, Ven. William
- Richelieu, Armand-Jean du Plessis, Duke de
- Richmond, Diocese of
- Ricoldo da Monte di Croce
- Riemenschneider, Tillmann
- Rienzi, Cola di
- Rieti
- Rievaulx, Abbey of
- Riffel, Caspar
- Rigby, John, Saint
- Rigby, Nicholas
- Right
- Right of Exclusion
- Right of Option
- Right of Voluntary Association
- Rimbert, Saint
- Rimini, Council of
- Rimini
- Rimouski
- Ring of the Fisherman, The
- Rings
- Rinuccini, Giovanni Battista
- Rio, Alexis-François
- Riobamba
- Rioja, Francisco de
- Rio Negro
- Ripalda, Juan Martínez de
- Ripatransone
- Ripon, Marquess of
- Risby, Richard
- Rishanger, William
- Rishton, Edward
- Rita of Cascia, Saint
- Rites
- Rites in the United States
- Ritschlianism
- Ritter, Joseph Ignatius
- Ritual
- Ritualists
- Rivington, Luke
- Rizal, José Mercado
- Robbers, Seven
- Robbia, Andrea della
- Robbia, Lucia di Simone
- Robert, Saint
- Robert Bellarmine, Saint
- Robert Johnson, Blessed
- Robert of Arbrissel
- Robert of Courçon
- Robert of Geneva
- Robert of Jumièges
- Robert of Luzarches
- Robert of Melun
- Robert of Molesme, Saint
- Robert of Newminster, Saint
- Robert Pullus
- Roberts, Saint John
- Robertson, James Burton
- Robinson, Venerable Christopher
- Robinson, William Callyhan
- Rocaberti, Juan Tomás de
- Rocamadour
- Rocca, Angelo
- Roch, Saint
- Rochambeau, Jean-Baptiste-Donatien
- Roche, Alanus de la
- Rochester, Ancient See of
- Rochester, Diocese of
- Rochester, Blessed John
- Rochet
- Rochette, Désiré Raoul
- Rock, Daniel
- Rockford, Diocese of
- Rockhampton
- Rococo Style
- Rodez
- Rodrigues Ferreira, Alexandre
- Rodriguez, Saint Alphonsus
- Rodriguez, Alonso
- Rodriguez, Joao
- Roe, Bartholomew
- Roermond
- Rogation Days
- Roger, Bishop of Worcester
- Roger Bacon
- Roger Cadwallador, Venerable
- Roger of Wendover
- Roh, Peter
- Rohault de Fleury
- Rohrbacher, Réné François
- Rojas y Zorrilla, Francisco de
- Rokewode, John Gage
- Rolduc
- Rolfus, Hermann
- Rolle de Hampole, Richard
- Rollin, Charles
- Rolls Series
- Rolph, Thomas
- Roman Catacombs
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- Roman Catholic
- Roman Catholic Relief Bill
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- Roman Colleges
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- Romanos, Saint
- Romanos Pontifices, Constitutio
- Romans, Epistle to the
- Romanus, Saints
- Romanus, Pope
- Rome
- Rome, University of
- Romero, Juan
- Romuald, Saint
- Romulus Augustulus
- Ronan, Saint
- Ronsard, Pierre de
- Rood
- Roothaan, Johann Philipp
- Roper, William
- Rorate Coeli
- Rosa, Salvatore
- Rosalia, Saint
- Rosary, The
- Rosary, Breviary Hymns of the
- Rosary, Confraternity of the
- Rosary, Feast of the Holy
- Rosary, Seraphic
- Rosate, Alberico de
- Roscelin
- Roscommon
- Rosenau
- Rose of Lima, Saint
- Rose of Viterbo, Saint
- Rose Window
- Rosea
- Roseau
- Rosecrans, William Starke
- Roseline, Saint
- Rosh Hashanah
- Rosicrucians
- Roskilde, Ancient See of, in Denmark
- Roskoványi, August
- Rosmini and Rosminianism
- Rosminians
- Ross
- Ross, School of
- Rossano
- Rosselino, Antonio di Matteo di Domenico
- Rosselino, Bernardo
- Rosselli, Cosimo
- Rossi, Bernardo de
- Rossi, Giovanni Battista de
- Rossi, Pellegrino
- Rossini, Gioacchino Antonio
- Rostock, Sebastian von
- Rostock, University of
- Roswitha
- Rota, Sacra Romana
- Roth, Heinrich
- Rothe, David
- Rottenburg
- Rotuli
- Rouen, Archdiocese of
- Rouen, Synods of
- Rouquette, Adrien
- Rousseau, Jean-Baptiste
- Rovezzano, Benedetto da
- Rowsham, Stephen
- Royal Declaration, The
- Royer-Collard, Pierre-Paul
- Ruadhan, Saint
- Ruben
- Rubens, Peter Paul
- Rubrics
- Rubruck, William
- Rudolf of Fulda
- Rudolf of Habsburg
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- Rudolf von Ems
- Rueckers, Family of
- Ruffini, Paolo
- Rufford Abbey
- Rufina, Saints
- Rufinus, Saint
- Rufus, Saint
- Ruiz de Alarcón y Mendoza, Juan de
- Ruiz de Montoya, Antonio
- Ruiz de Montoya, Diego
- Rule of Faith, The
- Rule of St. Augustine
- Rule of St. Benedict
- Rumania
- Rumohr, Karl Friedrich
- Rupe, Alanus de
- Rupert, Saint
- Rusaddir
- Rusicade
- Ruspe
- Russell, Charles
- Russell, Charles William
- Russell, Richard
- Russia
- Russia, The Religion of
- Russian Language and Literature
- Rusticus of Narbonne, Saint
- Ruth, Book of
- Ruthenian Rite
- Ruthenians
- Rutter, Henry
- Ruvo and Bitonto
- Ruysbroeck, Blessed John
- Ruysch, John
- Ryan, Father Abram J.
- Ryan, Patrick John
- Ryder, Henry Ignatius Dudley
- Ryken, Theodore James
- Sa, Manoel de
- Saavedra, Fajardo Diego de
- Saavedra Remírez de Baquedano, Angel de
- Saba and Sabeans
- Sabaoth
- Sabbas, Saint
- Sabbatarians, Sabbatarianism
- Sabbath
- Sabbatical Year
- Sabbatine Privilege
- Sabina, Saint
- Sabinianus, Pope
- Sabran, Louis de
- Sabrata
- Sacchoni, Rainerio
- Sacra Jam Splendent
- Sacramentals
- Sacraments
- Sacrament, Reservation of the Blessed
- Sacred Heart, Brothers of the
- Sacred Heart of Jesus, Devotion to the
- Sacred Heart of Jesus, Missionary Sisters of the
- Sacred Heart of Jesus, Missionaries of the
- Sacred Heart of Jesus, Society of the
- Sacred Heart of Jesus, Society of the
- Sacred Hearts of Jesus and Mary, Congregation of the
- Sacrifice
- Sacrifice of the Mass
- Sacrilege
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- Sacristy
- Sadducees
- Sadler, Thomas Vincent Faustus
- Sadlier, Mary Anne Madden
- Sadoleto, Jacopo
- Sagalassus
- Sagard, Théodat-Gabriel
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- Sahaptin Indians
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- Sailer, Johann Michael
- Sainctes, Claude de
- Saint Albans, Abbey of
- Saint Albert
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- Saint Andrews, Priory of
- Saint Asaph, Ancient Diocese of
- Saint Augustine, Abbey of
- Saint Bartholomew's Day Massacre
- Saint Benedict, Medal of
- Saint Bonaventure, College of Saint
- Saint Boniface
- Saint-Brieuc
- Saint-Claude
- Saint Cloud
- Saint-Cosme, Jean-François Buisson de
- Saint-Denis, Abbey of
- Saint-Denis
- Saint-Dié
- Saint Gall
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- Saint George's
- Saint Hyacinthe
- Saint Isidore, College of
- Saint James of Compostela, Order of
- Saint-Jean-de-Maurienne
- Saint-John, Ambrose
- Saint John
- Saint John's University
- Saint Joseph, Diocese of
- Saint Joseph's College, University of
- Saint Louis (Missouri)
- Saint Louis, University of
- Saint Lucius, Monastery of
- Saint Mark, University of
- Saint Omer, College of
- Saint-Ouen, Abbey of
- Saint Paul (Minnesota)
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- Saint Peter, Tomb of
- Saint Petersburg
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- Saint-Simon, Louis de Rouvroy, Duc de
- Saint-Simon and Saint-Simonism
- Saint-Sulpice, Society of
- Saint Sylvester, Order of
- Saint Thomas, Diocese of
- Saint Thomas, University of
- Saint Thomas of Guiana
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- Saint-Vallier, Jean-Baptiste de
- Saint-Victor, Abbey of
- Saint-Victor, Achard de
- Saint Vincent de Paul, Society of
- Sainte Anne d'Auray
- Sainte Anne de Beaupré
- Sainte-Claire Deville, Charles
- Sainte-Claire Deville, Henri-Etienne
- Sainte-Geneviève, Abbey of
- Saint-Flour
- Saint Francis Mission
- Saint Francis Xavier's College, University of
- Saints, Canonization of
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- Saints, Legends of the
- Saints Vincent and Anastasius, Abbey of
- Sala, George Augustus Henry
- Salamanca
- Salamanca, University of
- Salamis
- Salamis, Epiphanius of
- Salamon, Louis-Siffren-Joseph
- Salazar, Domingo de
- Sale
- Salem
- Salerno
- Salesian Society, The
- Salford
- Salimbene degli Adami
- Salisbury, Ancient Diocese of
- Saliva Indians
- Salle, Saint John Baptist de la
- Salmanticenses and Complutenses
- Salmas
- Salmeron, Alphonsus
- Salome
- Salt
- Salta, Diocese of
- Saltillo, Diocese of
- Salt Lake, Diocese of
- Salto
- Salutati, Coluccio di Pierio di
- Saluzzo
- Salvatierra, Juan Maria
- Salvation
- Salve Mundi Salutare
- Salve Regina
- Salvete Christi Vulnera
- Salvianus
- Salzburg
- Salzmann, Joseph
- Sámar and Leyte
- Samaria
- Samaritan Language and Literature
- Sambuga, Joseph Anton
- Samoa
- Samogitia
- Samos
- Samosata
- Sampson, Richard
- Samson
- Samson
- Samson, Saint
- Samuco Indians
- Samuel, First and Second Books of
- San Antonio, Diocese of
- San Carlos de Ancud
- San Gallo
- Sanhedrin
- San José de Costa Rica
- Sánchez, Alonzo
- Sánchez, Alonzo Coello
- Sánchez, José Bernardo
- Sanchez, Thomas
- Sanctifying Grace
- Sanction
- Sanction, Pragmatic
- Sanctity
- Sanctorum Meritis
- Sanctuary
- Sanctuary
- Sanctus
- Sandals, Episcopal
- Sandemanians
- Sandeo, Felino Maria
- Sander, Anton
- Sander, Nicholas
- Sandhurst
- Sandomir
- Sands, Benjamin and James
- Sandwich Isands
- Sandys, Venerable John
- Sanetch Indians
- San Francisco
- San Juan
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- San León del Amazonas
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- San Marco and Bisignano
- San Marino
- San Martino al Cimino
- San Miniato
- Sannazaro, Jacopo
- San Salvador
- San Salvador
- San Sepolcro, Piero da
- San Severino
- Sanseverino, Gaetano
- San Severo
- Sansovino, Andrea Contucci del
- Santa Agata dei Goti, Diocese of
- Santa Casa di Loreto
- Santa Catharina
- Santa Cruz de la Sierra
- Santa Fe (New Mexico)
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- Santa Lucia del Mela
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- Santa Maria de Monserrato
- Santa Marta
- Santander
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- Sant' Angelo in Vado and Urbania
- Santarem
- Santa Severina
- Santiago, University of
- Santiago del Estero
- Santini, Giovanni Sante Gaspero
- Santo Domingo, Archdiocese of
- Santos, João dos
- San Xavier del Bac, Mission of
- São Carlos do Pinhal
- São Luiz de Cáceres
- São Luiz de Maranhão
- São Paulo
- São Salvador de Bahia de Todos os Santos
- São Sebastião do Rio de Janeiro
- São Thiago de Cabo Verde
- Sappa
- Sara
- Sarabaites
- Saragossa
- Saragossa, University of
- Sarajevo, Archdiocese of
- Sarayacú Mission
- Sarbiewski, Mathias Casimir
- Sardes
- Sardica
- Sardica, Council of
- Sardinia
- Sarepta
- Sarkander, Blessed John
- Sarnelli, Januarius Maria
- Sarpi, Paolo
- Sarsfield, Patrick
- Sarsina
- Sarto, Andrea del
- Sarum Rite
- Sasima
- Saskatchewan and Alberta
- Sassari
- Sassoferrato, Giovanni Battista Salvi da
- Satala
- Satan
- Satolli, Francesco
- Saturninus, Saint
- Sauatra
- Saul
- Sault St. Louis
- Sault Sainte Marie
- Savannah
- Savaric
- Savary
- Savigny, Abbey of
- Savigny, Karl Friedrich
- Savona and Noli
- Savonarola, Girolamo
- Savoy
- Saxe, Jean de
- Saxe-Altenburg
- Saxe-Coburg and Gotha
- Saxe-Meiningen
- Saxe-Weimar-Eisenach
- Saxo Grammaticus
- Saxony
- Saxony, Albert of
- Scala Sancta (Holy Stairs)
- Scaliger, Julius Caesar
- Scalimoli
- Scammon, Ellakim Parker
- Scandal
- Scannabecchi, Filippo
- Scapular
- Scaramelli, Giovanni Battista
- Scarampi, Pierfrancesco
- Scarlatti, Alessandro
- Scarron, Paul
- Scepticism
- Schadow, Friedrich Wilhelm
- Schaepman, Herman
- Schäftlarn
- Schall von Bell, Johann Adam
- Schannat, Johann Friedrich
- Schatzgeyer, Caspar
- Schäufelin, Hans Leonhard
- Schaumburg-Lippe
- Schäzler, Constantine, Baron von
- Schedel, Hartmann
- Scheeben, Matthias Joseph
- Scheffmacher, John James
- Scheiner, Christopher
- Schelble, Johann Nepomuk
- Schelstrate, Emmanuel
- Schenkl, Maurus von
- Schenute
- Scherer, Georg
- Scherer-Boccard, Theodore, Count von
- Schinner, Matthaeus
- Schism
- Schism, Eastern
- Schism, Western
- Schlegel, Friedrich von
- Schleswig
- Schlör, Aloysius
- Schlosser, John Frederick Henry
- Schmalzgrueber, Francis Xavier
- Schmid, Christoph von
- Schmidt, Friedrich von
- Schneeman, Gerard
- Schoenberg, Matthias von
- Schöffer, Peter
- Schola Cantorum
- Scholasticism
- Scholliner, Herman
- Schols, Charles Mathieu
- Scholz, John Martin Augustine
- Schönborn
- Schongauer, Martin
- Schöningh
- Schools
- Schools, Apostolic
- Schools, Clerks Regular of the Pious
- Schorlemer-Alst, Burghard Freiherr von
- Schott, Gaspar
- Schottenklöster
- Schrader, Clement
- Schram, Dominic
- Schrank, Franz Paula von
- Schraudolph, Johann
- Schubert, Franz
- Schwane, Joseph
- Schwann, Theodor
- Schwanthaler, Ludwig von
- Schwarz, Berthold
- Schwarzburg
- Schwarzenberg, Friedrich, Prince of
- Schwenckfeldians
- Schwind, Moritz von
- Science and the Church
- Scillium
- Scillium, Martyrs of
- Scopia
- Scotism and Scotists
- Scotland
- Scotland, Established Church of
- Scoto-Hibernian Monasteries
- Scots College, The
- Scott, Ven. Montford
- Scotus, Blessed John Duns
- Scranton
- Screen, Altar
- Scribes
- Scriptorium
- Scripture
- Scruple
- Scrutiny
- Sculpture
- Scutari, Archdiocese of
- Scythopolis
- Seal
- Seal of Confession, the Law of the
- Seattle
- Sebaste
- Sebastia
- Sebastian, Saint
- Sebastian Newdigate, Blessed
- Sebastopolis
- Sebenico
- Secchi, Angelo
- Sechelt Indians
- Sechnall, Saint
- Seckau
- Secret
- Secret, Discipline of the
- Sect and Sects
- Secularism
- Secularization
- Secular Clergy
- Sedgwick, Thomas
- Sedia Gestatoria
- Sedilia
- Seduction
- Sedulius
- Sedulius Scotus
- Seekers
- Seelos, Francis X.
- Seerth
- Séez
- Seghers, Charles John
- Segneri, Paolo
- Segni
- Segorbe
- Segovia
- Ségur, Louis Gaston de
- Ségur, Sophie Rostopchine, Comtesse de
- Sehna, Diocese of
- Seidl, Johann Gabriel
- Seitz, Alexander Maximilian
- Sejny, Diocese of
- Sekanais
- Seleucia Pieria
- Seleucia Trachea
- Seleucians
- Seleucids
- Self-Defense
- Selgas y Carrasco, José
- Selge
- Selinus
- Selvaggio, Giulio Lorenzo
- Selymbria
- Sem
- Semiarians and Semiarianism
- Seminary, Ecclesiastical
- Semipelagianism
- Semites
- Semitic Epigraphy
- Semmelweis, Ignaz Philipp
- Semmes, Raphael
- Seña, Balthasar
- Senan, Saint
- Señan, José Francisco de Paula
- Sénanque
- Seneca Indians
- Senefelder, Aloys
- Senegambia
- Sennen and Abdon, Saints
- Sens
- Sens, Councils of
- Sentence
- Sept-Fons, Notre-Dame de Saint-Lieu
- Septimius Severus
- Septuagesima
- Septuagint Version
- Sepulchre, Holy
- Sequence or Prose
- Serajevo, Archdiocese of
- Seraphic Crown
- Seraphim
- Seraphin of Montegranaro, Saint
- Seraphina Sforza, Blessed
- Serapion, Saint
- Serena, Diocese of La
- Sergeant, John
- Sergeant, Ven. Richard
- Sergiopolis
- Sergius and Bacchus
- Sergius I, Pope Saint
- Sergius II, Pope
- Sergius III, Pope
- Sergius IV, Pope
- Seripando, Girolamo
- Seroux d'Agincourt, Jean-Baptiste-Louis-George
- Serpieri, Alessandro
- Serra, Junípero
- Serrae
- Servants of Mary (Order of Servites)
- Servants of the Most Blessed Sacrament
- Servia
- Servites, Order of
- Servus servorum Dei
- Sessa-Aurunca
- Sestini, Benedict
- Setebo Indians
- Seton, Saint Elizabeth Ann
- Seton, William
- Settignano, Desiderio da
- Settlement, Act of (Irish)
- Seven-Branch Candlestick
- Seven Deacons
- Seven Robbers
- Seven Sleepers of Ephesus, The
- Severian
- Severinus, Pope
- Severus, Alexander
- Severus Sanctus Endelechus
- Sévigné, Madame de
- Seville
- Seville, University of
- Sexagesima
- Sexburga, Saint
- Sext
- Sexton
- Sfondrati, Celestino
- Sforza, Blessed Seraphina
- Shakespeare, Religion of
- Shamanism
- Shammai
- Shan-si, Vicariate Apostolic of Northern
- Shan-si, Vicariate Apostolic of Southern
- Shan-tung, Vicariate Apostolic of Eastern
- Shan-tung, Vicariate Apostolic of Northern
- Shan-tung, Vicariate Apostolic of Southern
- Sharpe, James
- Shea, John Dawson Gilmary
- Shea, Sir Ambrose
- Sheil, Richard Lalor
- Sheldon, Edward
- Shelley, Richard
- Shem
- Shen-si, Northern
- Shen-si, Southern
- Shepherd, John
- Sherborne Abbey
- Sherbrooke
- Sheridan, Philip Henry
- Sherson, Martin
- Shert, Blessed John
- Sherwin, Blessed Ralph
- Sherwood, Blessed Thomas
- Sherwood, William
- Shewbreads
- Shields, James
- Shi-koku
- Shire
- Shirley, James
- Shrewsbury
- Shrines of Our Lady and the Saints in Great Britain and Ireland
- Shroud of Turin
- Shrovetide
- Shuswap Indians
- Siam
- Sibbel, Joseph
- Siberia
- Sibour, Marie-Dominique-Auguste
- Sibylline Oracles
- Sicard
- Sicca Veneria
- Sichem
- Sicilian Vespers
- Sicily
- Sick, Anointing of the
- Side, Altar
- Sidon
- Sidon
- Sidonius Apollinaris
- Sidyma
- Siena
- Siena, University of
- Sieni, Cyril
- Sierra Leone
- Sigebert of Gembloux
- Siger of Brabant
- Sigismund
- Sign of the Cross
- Signorelli, Luca
- Sigüenza
- Sikhism
- Silandus
- Silence
- Silesia
- Siletz Indians
- Siloe
- Silveira, Ven. Goncalo da
- Silverius, Pope Saint
- Silvester, Francis
- Silvia, Saint
- Simeon
- Simeon, Holy
- Simeon, Canticle of
- Simeon of Durham
- Simeon Stylites the Elder, Saint
- Simeon Stylites the Younger, Saint
- Simla
- Simon the Apostle, Saint
- Simonians
- Simon Magus
- Simon of Cascia
- Simon of Cramaud
- Simon of Cremona
- Simon of Sudbury
- Simon of Tournai
- Simon Peter
- Simon Stock, Saint
- Simone da Orsenigo
- Simony
- Simplicius, Pope Saint
- Simplicius, Faustinus and Beatrice
- Simpson, Richard
- Sin
- Sinai
- Sinaiticus, Codex
- Sinaloa
- Singing, Congregational
- Sinigaglia
- Sinis
- Sinope
- Sion
- Sion
- Sioux City
- Sioux Falls
- Sioux Indians
- Sipibo Indians
- Sirach, Book of
- Siricius, Pope Saint
- Sirleto, Gugliemo
- Sirmium
- Sirmond, Jacques
- Sisinnius, Pope
- Sisters of Charity of Cincinnati, Ohio
- Sisters of the Little Company of Mary
- Sistine Choir
- Sitifis
- Sitjar, Buenaventura
- Siunia
- Six Days of Creation
- Sixtus I, Pope Saint
- Sixtus II, Pope Saint
- Sixtus III, Pope Saint
- Sixtus IV, Pope
- Sixtus V, Pope
- Skara, Ancient See of
- Skarga, Peter
- Skoda, Josef
- Slander
- Slavery and Christianity
- Slavery, Ethical Aspect of
- Slaves
- Slavonic Language and Liturgy
- Slavs, The
- Slavs in America
- Slomsek, Anton Martin
- Slotanus, John
- Sloth
- Slythurst, Thomas
- Smalkaldic League
- Smaragdus, Ardo
- Smith, James
- Smith, Richard
- Smith, Richard
- Smith, Thomas Kilby
- Smits, William
- Smyrna
- Snorri Sturluson
- Snow, Venerable Peter
- Sobaipura Indians
- Sobieski, John
- Social Contract, The
- Socialism
- Socialistic Communities
- Societies, Catholic
- Societies, Catholic, American Federation of
- Societies, Secret
- Society
- Society, The Catholic Church Extension
- Society of Foreign Missions of Paris
- Society of Jesus, The
- Society of the Blessed Sacrament, The
- Society of the Sacred Heart of Jesus, The
- Sociology
- Socinianism
- Socorro
- Socrates
- Socrates
- Sodality
- Sodality (Confraternity)
- Sodoma
- Sodom and Gomorrha
- Sodor and Man
- Soissons
- Solanus, Saint Francis
- Solari
- Solemnity
- Solesmes
- Soli
- Solicitation
- Solimôes Superiore
- Solomon
- Solomon, Psalms of
- Solomon Islands, Northern
- Solomon Islands, Southern
- Solsona
- Somaliland
- Somaschi
- Somerset, Thomas
- Song, Religious
- Songish Indians
- Sonnius, Franciscus
- Son of God
- Son of Man
- Sonora
- Sophene
- Sophists
- Sophonias
- Sophronius
- Sora
- Sorbait, Paul de
- Sorbonne
- Sorin, Edward
- Sorrento
- Sorrows of the Blessed Virgin Mary, Feast of the Seven
- Soter and Caius, Saints
- Soto, Dominic
- Soul
- Soul, Faculties of the
- South American College in Rome, The
- South Carolina
- South Dakota
- Southerne, Venerable William
- Southwark
- Southwell, Venerable Robert
- Southworth, Saint John
- Sovana and Pitigliano
- Sozomen, Salaminius Hermias
- Sozopolis
- Sozusa
- Space
- Spagni, Andrea
- Spain
- Spalato-Macarsca (Salona)
- Spalding, Martin John
- Spallanzani
- Spanish-American Literature
- Spanish-American Universities
- Spanish Armada, The
- Spanish Language and Literature
- Sparta
- Species
- Speckbacher, Josef
- Speculation
- Spedalleri, Nicola
- Spee, Friedrich Von
- Speed, Blessed John
- Spencer, The Hon. George
- Spenser, John
- Spenser, Venerable William
- Speyer
- Speyer, Johann and Wendelin von
- Spillmann, Joseph
- Spina, Alphonso de
- Spina, Bartolommeo
- Spinola, Christopher Royas de
- Spinoza, Benedict
- Spire
- Spirit
- Spirit, Holy
- Spiritism
- Spirito Santo
- Spiritual Direction
- Spiritual Exercises of Saint Ignatius
- Spiritualism
- Spirituals
- Spokan Indians
- Spoleto
- Spondanus, Henri
- Spontini, Gasparo Luigi Pacifico
- Spoons, Apostle
- Sporer, Patritius
- Sportelli, Caesar
- Springfield
- Sprott, Venerable Thomas
- Squamish Indians
- Squiers, Herbert Goldsmith
- Squillace
- Sri Lanka
- Stabat Mater
- Stadler, John Evangelist
- Staff, Pastoral
- Stained Glass
- Stalls
- Stanbrook Abbey
- Stanfield, William Clarkson
- Stanislas Kostka, Saint
- Stanislaus of Cracow, Saint
- Stanislawow
- Stanley Falls
- Stansel, Valentin
- Stanyhurst, Richard
- Stanza
- Stapf, Joseph Ambrose
- Staphylus, Friedrich
- Stapleton, Theobald
- Stapleton, Thomas
- Starowolski, Simon
- Starr, Eliza Allen
- State, Allegiance to the
- State and Church
- State or Way
- States of the Church
- States, Papal
- Station Days
- Stations of the Cross
- Statistics, Ecclesiastical
- Statistics of Religions
- Stattler, Benedict
- Staudenmaier, Franz Anton
- Staupitz, Johann Von
- Stauropolis
- Stavanger, Ancient See of
- Stedingers
- Stefaneschi, Giacomo Gaetani
- Steffani, Agostino
- Steinamanger
- Steinle, Eduard Von
- Steinmeyer, Ferdinand
- Steno, Nicolaus
- Stephen, Saint
- Stephen, Saint
- Stephen I, Pope Saint
- Stephen II, Pope
- Stephen (II) III, Pope
- Stephen (III) IV, Pope
- Stephen (IV) V, Pope
- Stephen (V) VI, Pope
- Stephen (VI) VII, Pope
- Stephen (VII) VIII, Pope
- Stephen (VIII) IX, Pope
- Stephen (IX) X, Pope
- Stephen Harding, Saint
- Stephen of Autun
- Stephen of Bourbon
- Stephen of Muret, Saint
- Stephen of Tournai
- Stephens, Henry Robert
- Stephens, Thomas
- Steps, Altar
- Steuco, Agostino
- Stevenson, Joseph
- Stevin, Simon
- Stifter, Adalbert
- Stigmata, Mystical
- Stipend
- Stockholm
- Stöckl, Albert
- Stoddard, Charles Warren
- Stoics and Stoic Philosophy
- Stolberg
- Stole
- Stole, Altar
- Stolz, Alban Isidor
- Stone, Altar
- Stone, Corner
- Stone, John, Blessed
- Stone, Mary Jean
- Stone, Marmaduke
- Stones, Precious, in the Bible
- Stoning in Scripture
- Stonnes, James
- Stonyhurst College
- Story, Blessed John
- Stoss, Veit
- Stoup
- Stradivari, Antonio
- Stradivari Family, The
- Strahov, Abbey of
- Strain, John
- Stransham, Venerable Edward
- Strasburg
- Stratonicea
- Streber, Franz Ignaz Von
- Streber, Franz Seraph
- Streber, Hermann
- Strengnäs, Ancient See of
- Striking of the Breast
- Stripping of an Altar
- Strossmayer, Joseph Georg
- Stuart, Henry Benedict Maria Clement
- Studion
- Stuhlweissenburg
- Sturluson, Snorri
- Stylites
- Styria
- Suárez, Francisco
- Subdeacon
- Subiaco
- Subreption
- Subsidies, Episcopal
- Substance
- Suburbicarian Dioceses
- Sudan
- Sufetula
- Sugar, Venerable John
- Suger
- Suicide
- Suidas
- Suitbert, Saint
- Sullivan, Alexander Martin
- Sullivan, Peter John
- Sully, Maurice de
- Sulpicians in the United States
- Sulpicius Severus
- Sulpitius
- Sumatra
- Summae
- Summer Schools, Catholic
- Sunday
- Superior
- Supernatural Adoption
- Supernatural Gift
- Supernatural Order
- Superstition
- Supper, The Last
- Suppression of Monasteries in Continental Europe
- Suppression of Monasteries in England
- Supremi disciplinae
- Sura
- Surin, Jean-Joseph
- Surius, Laurentius
- Surplice
- Susa
- Susa
- Susanna and Tiburtius, Saints
- Suso, Blessed Henry
- Suspension (in Canon Law)
- Sutton, Ven. Robert
- Sutton, Sir Richard
- Swan, Order of the
- Sweden
- Swedenborgians
- Sweinheim, Konrad
- Swetchine, Sophie-Jeanne Soymonof
- Sweynheim, Konrad
- Swinomish Indians
- Swithin, Saint
- Switzerland
- Syene
- Sykes, Edmund
- Syllabus
- Sylvester I, Pope Saint
- Sylvester II
- Sylvester, Bernard, of Chartres
- Sylvester Gozzolini, Saint
- Sylvester, Order of Saint
- Sylvestrines
- Sylvia, Saint
- Sylvius, Francis
- Sydney
- Symbolism
- Symmachus, Pope Saint
- Symmachus the Ebionite
- Symphorian and Timotheus, Saints
- Symphorosa, Saint
- Synagogue
- Synaus
- Synaxarion
- Synaxis
- Syncelli
- Syncretism
- Synderesis
- Syndic, Apostolic
- Syndicalism
- Synesius of Cyrene
- Synnada
- Synod
- Synods, National
- Synoptics
- Syntagma Canonum
- Syon Monastery
- Syra
- Syracuse
- Syracuse
- Syria
- Syriac Hymnody
- Syriac Language and Literature
- Syrian Rite, East
- Syrian Rite, West
- Syro-Chaldaic Rite
- Syro-Jacobite Liturgy
- Syro-Malabar Church
- Syro-Malabar Rite
- Szántó, Stephan
- Szatmár
- Sze-Ch'wan (Eastern)
- Sze-Ch'wan (North-western)
- Sze-Ch'wan (Southern)
- Szentiványi, Martin
- Szepes
- Szujski, Joseph
- Szymonowicz, Simon
- Tabae
- Tabasco
- Tabb, John Bannister
- Tabbora
- Tabernacle
- Tabernacle
- Tabernacle Lamp
- Tabernacles, Feast of
- Tabernacle Societies
- Tabernacle Society
- Tabor, Mount
- Tacana Indians
- Tacapae
- Taché, Alexandre-Antonin
- Taché, Etienne-Pascal
- Tadama
- Taenarum
- Taensa Indians
- Tahiti
- Taigi, Ven. Anna Maria
- Tait Indians
- Takkali
- Talbot, James
- Talbot, John
- Talbot, Peter
- Talbot, Thomas Joseph
- Tallagaht, Monastery of
- Talleyrand-Périgord, Charles-Maurice de
- Tallis, Thomas
- Talmud
- Talon, Jean
- Talon, Nicolas
- Talon, Pierre
- Tamanac Indians
- Tamassus
- Tamaulipas
- Tamburini, Michelangelo
- Tamburini, Thomas
- Tametsi
- Tamisier, Marie-Marthe-Baptistine
- Tanagra
- Tancred
- Taney, Roger Brooke
- Tanguay, Cyprien
- Tanis
- Tanner, Adam
- Tanner, Conrad
- Tanner, Edmund
- Tanner, Matthias
- Tantum Ergo
- Tanucci, Bernardo
- Taoism
- Taos Pueblo
- Taparelli, Aloysius
- Tapestry
- Tapis, Esteban
- Tarabotti, Helena
- Tarachus, Probus, and Andronicus, Saints
- Taranto
- Tarapacá
- Tarasius, Saint
- Tarazona
- Tarbes
- Tarentaise
- Targum
- Tarisel, Pierre
- Tarkin, Saint
- Tarnow
- Tarquini, Camillus
- Tarragona
- Tarsicius, Saint
- Tarsus
- Tartaglia, Nicolò
- Tartini, Giuseppe
- Taschereau, Elzéar-Alexandre
- Tassach, Saint
- Tassé, Joseph
- Tassin, René-Prosper
- Tasso, Torquato
- Tassoni, Alessandro
- Tatian
- Tatwin, Saint
- Taubaté
- Tauler, John
- Taunton, Ethelred
- Taverner, John
- Tavistock Abbey
- Tavium
- Taxa Innocentiana
- Taxster, John de
- Taylor, Frances Margaret
- Taylor, Ven. Hugh
- Tebaldeo, Antonio
- Te Deum, The
- Tegernsee
- Tehuantepec
- Teilo, Saint
- Tekakwitha, Blessed Kateri
- Teleology
- Telepathy
- Telese
- Telesio, Bernardino
- Telesphorus, Pope Saint
- Telesphorus of Cosenza
- Tell el-Amarna Tablets, The
- Téllez, Gabriel
- Tellier, Michel Le
- Telmessus
- Te Lucis Ante Terminum
- Temiskaming
- Temnus
- Tempel, Wilhelm
- Temperance
- Temperance Movements
- Templars, The Knights
- Temple
- Temple, Sisters of the
- Temple of Jerusalem
- Temptation
- Temptation of Christ
- Tencin, Pierre-Guérin de
- Ten Commandments, The
- Ten Thousand Martyrs, The
- Tenebrae
- Tenebrae Hearse
- Tenedos
- Teneriffe
- Teniers, David
- Tennessee
- Tenney, William Jewett
- Tentyris
- Tenure, Ecclesiastical
- Teos
- Tepic
- Tepl
- Teramo
- Terce
- Terenuthis
- Teresa of Avila, Saint
- Teresa of Lisieux, Saint
- Teresian Martyrs of Compiègne, The Sixteen Blessed
- Terill, Anthony
- Termessus
- Termoli
- Ternan, Saint
- Terracina, Sezze, and Piperno
- Terrasson, André
- Terrestrial Paradise
- Terrien, Jean-Baptiste
- Tertiaries
- Tertullian
- Teruel
- Testament, Old
- Testament, New
- Testem Benevolentiae
- Test-Oath, Missouri
- Tetzel, Johann
- Teuchira
- Teutonic Order
- Tewdrig
- Texas
- Textual Criticism
- Thabor, Mount
- Thabraca
- Thacia Montana
- Thaenae
- Thagaste
- Thagora
- Thais, Saint
- Thalberg, Sigismond
- Thalhofer, Valentin
- Thangmar
- Thanksgiving before and after Meals
- Thanksgiving Day
- Thapsus
- Thasos
- Thaumaci
- Thayer, John
- Theatines
- Theatre, The
- Thebaid
- Thébaud, Augustus
- Thebes
- Thebes
- Thecla, Saint
- Thecla, Saints
- Theft
- Thegan (Degan) of Treves
- Theiner, Augustin
- Thelepte
- Themiscyra
- Themisonium
- Thénard, Louis-Jacques, Baron
- Thennesus
- Theobald, Saint
- Theobald
- Theocracy
- Theodard, Saint
- Theodicy
- Theodore I, Pope
- Theodore II, Pope
- Theodore, Archbishop of Canterbury
- Theodore, Bishop of Mopsuestia
- Theodore of Amasea, Saint
- Theodore of Gaza
- Theodore of Studium, Saint
- Theodoret
- Theodoric (Thierry) of Chartres
- Theodoric the Great
- Theodorus and Theophanes, Saints
- Theodorus Lector
- Theodosiopolis
- Theodosius I
- Theodosius Florentini
- Theodotus of Ancyra, Saint
- Theodulf
- Theology, Ascetical
- Theology, Dogmatic
- Theology, History of Dogmatic
- Theology, Moral
- Theology, Mystical
- Theology, Pastoral
- Theology of Christ (Christology)
- Theonas
- Theophanes, Saint
- Theophanes Kerameus
- Théophane Vénard
- Theophilanthropists
- Theophilus
- Theophilus
- Theosophy
- Theotocopuli, Domenico
- Thera (Santorin)
- Thérèse of Lisieux, Saint
- Thermae Basilicae
- Thermopylae
- Thessalonians, Epistles to the
- Thessalonica
- Theveste
- Thibaris
- Thibaut de Champagne
- Thierry of Freburg
- Thiers, Louis-Adolphe
- Thignica
- Thijm, Joseph Albert Alberdingk
- Thijm, Peter Paul Maria Alberdingk
- Thimelby, Richard
- Third Orders
- Thirty Years War
- Thmuis
- Thomas the Apostle, Saint
- Thomas, Charles L.A.
- Thomas Abel, Blessed
- Thomas Alfield, Venerable
- Thomas á Jesu
- Thomas à Kempis
- Thomas Aquinas, Saint
- Thomas Atkinson, Venerable
- Thomas Becket, Saint
- Thomas Belchiam, Venerable
- Thomas Christians, Saint
- Thomas Cottam, Blessed
- Thomas Ford, Blessed
- Thomas Garnet, Saint
- Thomas Johnson, Blessed
- Thomas More, Saint
- Thomas of Beckington
- Thomas of Bradwardine
- Thomas of Cantimpré
- Thomas of Celano
- Thomas of Dover
- Thomas of Hereford
- Thomas of Jesus
- Thomas of Jorz
- Thomas of Strasburg
- Thomas of Villanova, Saint
- Thomas Percy, Blessed
- Thomas Sherwood, Blessed
- Thomassin, Louis
- Thuringia
- Thurmayr, Johannes
- Thomas Thwing, Venerable
- Thomas Woodhouse, Blessed
- Thomism
- Thompson, Edward Healy and Harriet Diana
- Thompson, Francis
- Thompson, Right Honourable Sir John Sparrow David
- Thompson, Blessed James
- Thompson River Indians
- Thonissen, Jean-Joseph
- Thorlaksson, Arni
- Thorney Abbey
- Thorns, Crown of
- Thorns, Feast of the Crown of
- Thorpe, Venerable Robert
- Thou, Jacques-Auguste de
- Thou, Nicolas de
- Three Chapters
- Three Rivers
- Throne
- Thuburbo Minus
- Thugga
- Thugut, Johann Amadeus Franz de Paula
- Thulis, Venerable John
- Thundering Legion
- Thun-Hohenstein, Count Leo
- Thyatira
- Thynias
- Thyräus, Hermann
- Tiara
- Tibaldi, Pellegrino
- Tiberias
- Tiberias, Sea of
- Tiberiopolis
- Tiberius
- Tibet
- Tiburtius and Susanna, Saints
- Ticelia
- Tichborne, Ven. Nicholas
- Tichborne, Ven. Thomas
- Ticonius
- Ticuna Indians
- Tieffentaller, Joseph
- Tiepolo
- Tierney, Mark Aloysius
- Tigris, Saint
- Tillemont, Louis-Sébastien Le Nain de
- Tilly, Johannes Tserclaes, Count of
- Timbrias
- Time
- Timothy and Symphorian, Saints
- Timothy and Titus, Epistles to
- Timucua Indians
- Tincker, Mary Agnes
- Tingis
- Tinin
- Tinos and Mykonos
- Tintern Abbey
- Tintoretto, Il
- Tipasa
- Tiraboschi, Girolamo
- Tiraspol
- Tisio da Garofalo, Benvenuto
- Tissot, James
- Tithes
- Tithes, Lay
- Titian
- Titopolis
- Titulus
- Titus, Bishop of Bostra
- Titus
- Titus and Timothy, Epistles to
- Tius
- Tivoli
- Tlaxcala
- Tlos
- Toaldo, Giuseppe
- Toba Indians
- Tobias
- Tocqueville, Charles-Alexis-Henri-Maurice-Clerel de
- Todi
- Tokio
- Toledo (Spain)
- Toledo (Ohio)
- Toledo, Francisco
- Tolentino and Macerata
- Toleration, History of
- Toleration, Religious
- Tolomei, John Baptist
- Tomb
- Tomb of the Blessed Virgin Mary
- Tomb, Altar
- Tomi
- Tommasi, Blessed Giuseppe Maria
- Tongerloo, Abbey of
- Tongiorgi, Salvator
- Tongues, Gift of
- Tonica Indians
- Tonkawa Indians
- Tonsure
- Tootell, Hugh
- Torah
- Torbido, Francesco
- Toribio Alfonso Mogrovejo, Saint
- Tornielli, Girolamo Francesco
- Torone
- Toronto
- Torquemada, Tomás de
- Torres, Francisco
- Torres Naharro, Bartolemé de
- Torricelli, Evangelista
- Torrubia, José
- Tortona
- Tortosa
- Toscanella and Viterbo
- Toscanelli, Paolo dal Pozzo
- Tosephta
- Tostado, Alonso
- Tosti, Luigi
- Totemism
- Totonac Indians
- Touchet, George Anselm
- Toulouse
- Tournai
- Tournefort, Joseph Pitton de
- Tournély, Honoré
- Tournon, Charles-Thomas Maillard de
- Touron, Antoine
- Tours
- Toustain, Charles-François
- Touttée, Antoine-Augustin
- Tower of Babel
- Tracy, Alexandre de Prouville, Marquis de
- Tradition and Living Magisterium
- Traditionalism
- Traducianism
- Trajan
- Trajanopolis
- Trajanopolis
- Tralles
- Trani and Barletta
- Transcendentalism
- Transept
- Transfiguration
- Transfiguration of Christ, Feast of the
- Transvaal
- Transylvania
- Trapani
- Trapezopolis
- Trappists
- Trasilla and Emiliana, Saints
- Treason, Accusations of
- Trebizond
- Trebnitz
- Tredway, Lettice Mary
- Tregian, Francis
- Tremithus
- Trent
- Trent, Council of
- Trenton
- Tresham, Sir Thomas
- Treviso
- Tribe, Jewish
- Tricarico, Diocese of
- Tricassin, Charles Joseph
- Tricca
- Trichinopoly, Diocese of
- Trichur
- Tricomia
- Triduum
- Trier
- Triesnecker, Francis a Paula
- Triest-Capo d'Istria
- Trincomalee
- Trinità di Cava dei Tirrenti, Abbey of
- Trinitarians, Order of
- Trinity, The Blessed
- Trinity College
- Trinity Sunday
- Triple-Candlestick
- Trissino, Giangiorgio
- Tritheists
- Trithemius, John
- Trivento
- Trivet, Nicholas
- Troas
- Trocmades
- Trokelowe, John de
- Trondhjem, Ancient See of
- Trope
- Tropology, Scriptural
- Troy, John Thomas
- Troyes
- Truce of God
- Truchsess von Waldburg, Otto
- Trudo, Saint
- Trudpert, Saint
- True Cross, The
- Trueba, Antonio de
- Trullo, Council in
- Trujillo
- Trumpets, Feast of
- Trumwin, Saint
- Trustee System
- Trusts and Bequests
- Truth
- Truth Societies, Catholic
- Tryphon, Respicius, and Nympha
- Tschiderer zu Gleifheim, Johann Nepomuk von
- Tschupick, John Nepomuk
- Tuam
- Tuam, School of
- Tübingen, University of
- Tubunae
- Tucson
- Tucumán
- Tudela
- Tuguegarao
- Tulancingo
- Tulasne, Louis-René
- Tulle
- Tunic
- Tunis
- Tunja
- Tunkers
- Tunstall, Cuthbert
- Tunstall, Venerable Thomas
- Tunsted, Simon
- Turgot, Anne-Robert-Jacques
- Turin
- Turin, Shroud of
- Turin, University of
- Turkestan
- Turkish Empire
- Turnebus, Adrian
- Turpin
- Tuscany
- Tuy
- Twenge, Saint John
- Twiketal of Croyland
- Tyana
- Tychicus
- Tynemouth Priory
- Types in Scripture
- Tyrannicide
- Tyre
- Tyrie, James
- Ubaghs, Casimir
- Ubaldus, Saint
- Ubanghi
- Ubanghi, Belgian
- Ubanghi-Chari
- Uberaba
- Ubertino of Casale
- Ubiquitarians
- Ucayali
- Uccello
- Udine
- Ugento
- Ughelli, Ferdinando
- Uhtred
- Ujejski, Cornelius
- Ulenberg, Kaspar
- Ulfilas
- Ullathorne, William Bernard
- Ullerston, Richard
- Ulloa, Antoine de
- Ulloa, Francisco de
- Ulrich, Saint
- Ulrich of Bamberg
- Ulrich of Richenthal
- Ulrich of Zell
- Ultan of Ardbracca
- Ultramontanism
- Unam Sanctam
- Unclean and Clean
- Unction, Extreme
- Ungava
- Uniformity Acts
- Unigenitus
- Union of Brest
- Union of Christendom
- Unions of Prayer
- Unitarians
- Unitas Fratrum
- United States of America, The
- Unitive Way
- Unity
- Universalists
- Universals
- Universe
- Universe, Relation of God to the
- Universities
- University College (Dublin)
- Unjust Aggressor
- Unyanyembe
- Upper Nile
- Upper Rhine
- Upsala, Ancient See of
- Upsala, University of
- Uranopolis
- Urban I, Pope Saint
- Urban II, Pope Blessed
- Urban III, Pope
- Urban IV, Pope
- Urban V, Pope Blessed
- Urban VI, Pope
- Urban VII, Pope
- Urban VIII, Pope
- Urbi et Orbi
- Urbino
- Urbs beata Jerusalem dicta pacis visio
- Urdaneta, Andrés
- Urgel
- Urim and Thummim
- Urmiah
- Urráburu, Juan José
- Ursperger Chronicle
- Ursula, Saint, and the Eleven Thousand Virgins
- Ursula of the Blessed Virgin, Society of the Sisters of Saint
- Ursulines, The
- Ursulines of Quebec, The
- Ursus, Saint
- Urubamba
- Uruguay
- Uruguayana
- Ushaw College
- Usilla
- Usuard, Martyrology of
- Usury
- Utah
- Ut Queant Laxis Resonare Fibris
- Uthina
- Utica
- Utilitarianism
- Utopia
- Utraquism
- Utrecht, Archdiocese of
- Vaast, Abbey of Saint
- Vacancy
- Vácz, Diocese of
- Vadstena, Abbey of
- Vaga
- Vaillant de Gueslis, François
- Vaison, Ancient Diocese of
- Valdés, Alfonso de
- Valence, Diocese of
- Valence, University of
- Valencia
- Valencia, University of
- Valens, Flavius
- Valentine, Saint
- Valentine, Pope
- Valentinian I
- Valentinian II
- Valentinian III
- Valentinus and Valentinians
- Valerian
- Validation of Marriage
- Valla, Lorenzo
- Valladolid, Archdiocese of
- Valladolid, University of
- Vallarsi, Dominic
- Valle, Pietro della
- Vallée-Poussin, Charles-Louis-Joseph-Xavier de la
- Valleyfield, Diocese of
- Vallgornera, Thomas de
- Valliscaulian Order
- Vallo and Capaccio
- Vallumbrosan Order
- Valois, Henri
- Valona
- Valroger, Hyacinthe de
- Valva and Sulmona, Dioceses of
- Valverde, Vincent de
- Van Beethoven, Ludwig
- Van Beneden, Pierre-Joseph
- Van Buren, William Home
- Van Cleef, Jan
- Van Cleef, Joost
- Van Cleef, Martin
- Van der Sandt, Maximilian
- Van De Vyver, Augustine
- Vancouver
- Vandal, Albert
- Vandals
- Van den Broek, Theodore J.
- Van der Bundere, Joannes
- Van der Weyden, Rogier
- Van de Velde, Peter
- Van Eyck, Hubert and Jan
- Vane, Thomas
- Vannes, Diocese of
- Vanni, Andrea
- Vanni, Francesco
- Varani, Blessed Baptista
- Vargas, Luis de
- Vargas y Mexia, Francisco de
- Vasari, Giorgio
- Vase, Altar
- Vasquez, Gabriel
- Vatable, François
- Vatican, The
- Vatican as a Scientific Institution, The
- Vatican Council
- Vatican Observatory
- Vaticanus, Codex
- Vaudreuil
- Vaughan, Herbert
- Vaughan, Roger William
- Vauquelin, Louis-Nicolas
- Vaux, Laurence
- Vaux-de-Cernay
- Vavasour, Thomas
- Vavasseur, François
- Vaz, Blessed Joseph
- Vecchietta, Lorenzo di Pietro
- Vedas
- Vega, Andreas de
- Veghe, Johannes
- Vegio, Maffeo
- Veglia, Diocese of
- Vehe, Michael
- Veil, Humeral
- Veil, Religious
- Veit, Philipp
- Veith, Johann Emanuel
- Velazquez, Diego Rodriguez de Silva y
- Vénard, Théophane
- Venezuela
- Veni Creator Spiritus
- Veni Sancte Spiritus Et Emitte Coelitus
- Veni Sancte Spiritus Reple
- Venice
- Venosa
- Ventimiglia
- Ventura di Raulica, Gioacchino
- Venturino of Bergamo
- Venusti, Raffaele
- Vera Cruz
- Verapoly, Archdiocese of
- Verbiest, Ferdinand
- Verbum Supernum Prodiens
- Vercelli
- Vercellone, Carlo
- Verdaguer, Jacinto
- Verdi, Giuseppe
- Verdun, Diocese of
- Verecundus
- Vergani, Paolo
- Vergerio, Pier Paolo, the Elder
- Vergil, Polydore
- Vergilius of Salzburg, Saint
- Vering, Friedrich Heinrich
- Vermont
- Verna, La
- Vernazza, Tommasina
- Verne, Jules
- Vernier, Pierre
- Veroli, Diocese of
- Véron, François
- Verona
- Veronica, Saint
- Veronica Giuliani, Saint
- Verot, Augustin
- Verrazano, Giovanni da
- Verreau, Hospice-Anthelme
- Verri, Count Pietro
- Verrocchio, Andrea del
- Versailles
- Versions of the Bible
- Versions of the Bible, Coptic
- Verstegan, Richard
- Vertin, John
- Vertot, Réné-Aubert, Sieur de
- Veruela
- Vesalius, Andreas
- Vespasian
- Vespasiano da Bisticci
- Vespers
- Vespers, Music of
- Vespers, Sicilian
- Vespucci, Amerigo
- Vessels, Altar
- Vestibule (in Architecture)
- Vestments
- Veszprém
- Veto, The Royal
- Vetter, Conrad
- Veuillot, Louis
- Vexilla Regis Prodeunt
- Vexiö, Ancient See of
- Vezzosi, Antonio Francesco
- Via Crucis
- Via Dolorosa
- Viader, José
- Vianney, Saint Jean-Baptiste-Marie
- Viaticum
- Viator, Clerics of Saint
- Viborg, Ancient See of
- Vicar
- Vicar Apostolic
- Vicar of Christ
- Vicar Capitular
- Vicar-General
- Vicari, Hermann von
- Vicariate Apostolic (Updated List)
- Vice
- Vicelinus, Saint
- Vicente, Gil
- Vicenza, Diocese of
- Vich, Diocese of
- Vico, Francescoe de
- Victimae Paschali Laudes Immolent Christiani
- Victor I, Pope Saint
- Victor II, Pope
- Victor III, Pope Blessed
- Victor
- Victor IV
- Victor of Capua
- Victor Vitensis
- Victoria
- Victoria Nyanza, Northern
- Victoria Nyanza, Southern
- Victorinus, Caius Marius
- Victorinus, Saint
- Vida, Marco Girolamo
- Viel, Nicholas
- Vieira, Antonio
- Vienna
- Vienna, University of
- Vienne, Council of
- Vierthaler, Franz Michael
- Vieta, François
- Viger, Denis-Benjamin
- Viger, Jacques
- Vigevano
- Vigilius, Saint
- Vigilius
- Vigilius, Pope
- Vignola, Giacomo Barozzi da
- Vigor, Simon
- Vikings
- Villalpandus, Juan Bautista
- Villani, Giovanni
- Villanovanus, Arnaldus
- Villefranche, Jacques-Melchior
- Villehardouin, Geoffroi de
- Villeneuve-Barcement, Jean-Paul-Alban
- Villermé, Louis-René
- Villers, Cistercian Abbey of
- Vilna
- Vincent, Saint
- Vincent, Saint
- Vincent de Paul, Saint
- Vincent de Paul, Sisters of Charity of Saint
- Vincent de Paul, Sisters of Charity of Saint (New York)
- Vincent de Paul, Society of Saint
- Vincent Ferrer, Saint
- Vincent Kadlubek, Blessed
- Vincent of Beauvais
- Vincent of Lérins, Saint
- Vincentians
- Vincenzo de Vit
- Vinci, Leonardo di Ser Piero da
- Vindicianus, Saint
- Vineam Domini
- Violence
- Viotti, Giovanni Battista
- Viraggio, Jacopo di
- Virgilius, Saint
- Virgin Birth of Christ
- Virgin Mary, The
- Virgin Mary, Name of
- Virgin Mary, Devotion to the
- Virginia
- Virginity
- Virtue
- Virtue, Heroic
- Vischer, Peter
- Visdelou, Claude de
- Visigoths
- Visions
- Visit ad Limina
- Visitation, Canonical
- Visitation of the Blessed Virgin Mary
- Visitation Order
- Visitation Convent, Georgetown
- Visitors Apostolic
- Visits to the Blessed Sacrament
- Vitalian, Pope Saint
- Vitalini, Bonifazio
- Vitalis, Saint
- Vitalis and Agricola, Saints
- Vitalis of Savigny, Saint
- Vitelleschi, Muzio
- Vitellius, Lucius
- Vitensis, Victor
- Viterbo and Toscanella
- Vitoria
- Vittorino da Feltre
- Vitus, Modestus, and Crescentia, Saints
- Viva, Domenico
- Vivarini
- Vives, Juan Luis
- Viviers
- Vivisection
- Vizagapatam, Diocese of
- Vizeu
- Vladimir the Great, Saint
- Vocation, Ecclesiastical and Religious
- Vogler, George Joseph
- Vogüé, Eugène-Melchior, Vicomte de
- Volk, Wilhelm
- Volksverein
- Volta, Alessandro
- Volterra
- Volterra, Daniele da
- Voluntarism
- Voluntary
- Voluntary Association, Right of
- Völuspá
- Von Gagern, Max, Freiherr
- Vondel, Joost van Den
- Voragine, Jacopo de
- Votive Mass
- Votive Offerings
- Votive Offices
- Vows
- Vrau, Philibert
- Vrie, Theodoric
- Vulgate, Revision of
- Waagen, Wilhelm Heinrich
- Wace, Robert
- Wachter, Eberhard
- Wadding, Luke
- Wadding, Michael
- Waire, Venerable
- Waitzen, Diocese of
- Wakash Indians
- Walafrid
- Walburga, Saint
- Waldeck, Principality of
- Waldenses
- Waldsassen, Abbey of
- Waldseemüller, Martin
- Walenburch, Adrian and Peter von
- Wales
- Walkenried
- Wall, Venerable John
- Walla-Walla Indians
- Wallenstein, Albrecht von
- Wallon Henri-Alexandre
- Walmesley, Charles
- Walpole, Ven. Henry
- Walsh, Edward
- Walsh, Patrick
- Walsh, Peter
- Walsh, Robert
- Walsh, Thomas
- Walsh, William
- Walsingham, Thomas
- Walsingham Priory
- Walter, Ferdinand
- Walter of Châtillon
- Walter of Merton
- Walter of Mortagne
- Walter of St-Victor
- Walter of Winterburn
- Waltham Abbey
- Walther von der Vogelweide
- Walton, Brian
- Wandelbert
- Wangnereck, Heinrich
- War
- Ward, Hugh
- Ward, James Harman
- Ward, Margaret, Saint
- Ward, Mary
- Ward, Thomas
- Ward, Ven. William
- Ward, William George
- Warde, Mary Francis Xavier
- Warham, William
- Warsaw, Archdiocese of
- Wartenberg, Franz Wilhelm, Count von
- Washing of Feet and Hands
- Washington, D.C.
- Washington, State of
- Water, Holy
- Water, Holy, Fonts
- Water, Liturgical Use of
- Waterford and Lismore
- Waterson, Ven. Edward
- Waterton, Charles
- Waterworth, James
- Watteau, Jean Antoine
- Waverley, Cistercian Abbey of
- Way, Ven. William
- Way of the Cross
- Way or State
- Wealth, Use of
- Wearmouth Abbey
- Weathers, William
- Webb, Benjamin Joseph
- Webbe, Samuel
- Weber, Beda
- Weber, Friedrich Wilhelm
- Weber, Heinrich
- Weber, Karl Maria Friedrich Ernst von
- Weedall, Henry
- Week, Liturgical
- Wegg-Prosser, Francis Richard
- Weingarten
- Weis, Nicolaus von
- Weislinger, Johann Nikolaus
- Weiss, Johann Baptist
- Weissenau, Monastery of
- Weitenauer, Ignatius von
- Welbourne, Ven. Thomas
- Weld
- Weld, Frederick Aloysius
- Welle, Prefecture Apostolic of
- Wellington, Archdiocese of
- Wells, Ven. Swithin
- Wells in Scripture
- Welser, Bartholomeus
- Welsh Church
- Welsh Monastic Foundations
- Welte, Benedict
- Wenceslaus, Saint
- Wendelin of Trier, Saint
- Weninger, Francis Xavier
- Wenrich of Trier
- Werburgh, Saint
- Werden
- Werner, Friedrich Ludwig Zacharias
- Wessel Goesport, John
- Wessenberg, Ignaz Heinrich von
- Wessobrunn
- West Syrian Rite
- West Virginia
- Westcott, Sebastian
- Westeraas, Ancient See of
- Western Schism
- Westminster, Archdiocese of
- Westminster, Matthew of
- Westminster Abbey
- Westminster Cathedral
- Weston, William
- Westphalia
- Wettingen-Mehrerau, Abbacy Nullius of
- Wetzer, Heinrich Joseph
- Wharton, Ven. Christopher
- Wheeling, Diocese of
- Whipple, Amiel Weeks
- Whitaker, Venerable Thomas
- Whitbread, Venerable Thomas
- Whitby, Abbey of
- Whitby, Synod of
- White, Andrew
- White, Charles Ignatius
- White, Edward
- White, Eustace, Venerable
- White, Richard, Venerable
- White, Robert
- White, Stephen
- White, Stephen Mallory
- White, Thomas
- White Fathers
- Whithorn Priory
- Whiting, Blessed Richard
- Whitsunday
- Whitty, Ellen
- Whitty, Rose
- Whitty, Robert
- Wibald
- Wichita, Diocese of
- Wichita Indians
- Wichmans, Francis
- Widmer, Joseph
- Widow
- Widukind
- Widukind of Corvey
- Wiener-Neustadt, Diocese of
- Wiest, Stephan
- Wigand, Saints
- Wigbert, Saint
- Wigbod
- Wigley, George J.
- Wilberforce, Henry William
- Wilberforce, Robert Isaac
- Wilcannia, Diocese of
- Wilcox, Robert, Venerable
- Wild, Johann
- Wilfrid, Saint
- Wilgefortis
- Wilhelm V
- Wilhelm of Herle
- Wilhering, Cistercian Abbey of
- Will
- Will and Testament of Clerics
- Will, Free
- Willaert, Adrian
- Willehad, Saint
- Willems, Pierre
- William, Saint
- William, Saint
- William, Blessed
- William
- William
- William Carter, Venerable
- William Exmew, Blessed
- William Filby, Blessed
- William Hart, Blessed
- William Lacy, Blessed
- William of Auvergne
- William of Auxerre
- William of Champeaux
- William of Conches
- William of Digulleville
- William of Ebelholt, Saint
- William of Gellone, Saint
- William of Jumièges
- William of Maleval, Saint
- William of Malmesbury
- William of Moerbeke
- William of Nangis
- William of Newburgh
- William of Norwich, Saint
- William of Ockham
- William of Paris, Saint
- William of Perth, Saint
- William of Poitiers
- William of Ramsey
- William of St-Amour
- William of Sens
- William of Shoreham
- William of St-Thierry
- William of Turbeville
- William of Tyre
- William of Vercelli
- William of Ware
- William of Wayneflete
- William of Wykeham
- William Perault
- William the Clerk (of Normandy)
- William the Conqueror
- William the Walloon
- Williamites
- Willibald and Winnebald, Saints
- Willibrord, Saint
- Willigis, Saint
- Williram
- Wilmers, Wilhelm
- Wilmington, Diocese of
- Wilton, Richard
- Wilton Abbey
- Wimborne Minster
- Wimmer, Boniface
- Wimpfeling, Jakob
- Wimpina, Konrad
- Winchester, Ancient See of
- Winckelmann, Johann Joachim
- Windesheim
- Winding Sheet of Christ, Feast of the Holy
- Windischmann, Friedrich Heinrich Hugo
- Windischmann, Karl Joseph Hieronymus
- Window, Rose
- Windows in Church Architecture
- Windsor
- Windthorst, Ludwig
- Wine, Altar
- Winefride, Saint
- Wingham, Thomas
- Winnebago Indians
- Winnebald and Willibald, Saints
- Winnoc, Saint
- Winona, Diocese of
- Winslow, Jakob Benignus
- Winwallus, Saint
- Winzet, Ninian
- Wipo
- Wireker, Nigel
- Wirt, Wigand
- Wisconsin
- Wisdom, Book of
- Wisdom, Daughters of
- Wise Men (Magi)
- Wiseman, Nicholas Patrick
- Witchcraft
- Witness
- Witt, Francis Xavier
- Wittenberg
- Wittman, George Michael
- Wittman, Patrizius
- Witzel, Georg
- Wladislaw, Diocese of
- Wolff, George Dering
- Wolfgang, Saint
- Wolfram von Eschenbach
- Wolgemut, Michael
- Wolowski, Louis-François-Michel-Reymond
- Wolsey, Thomas
- Wolstan, Saint
- Woman
- Wood, Thomas
- Wood-Carving
- Woodcock, Venerable John
- Woodhead, Abraham
- Woods, Julian Edmund Tenison
- Woodhouse, Blessed Thomas
- Worcester, Ancient Diocese of
- Words (in Canon Law)
- World, Antiquity of the
- Wormwood
- Wörndle, Von, Family
- Worship, Christian
- Worsley, Edward
- Worthington, Thomas, D.D.
- Wounds, The Five Sacred
- Wouters, G. Henry
- Wright, Venerable Peter
- Wright, William
- Wulfen, Franz Xaver Freiherr von
- Wulfram, Saint
- Würtemberg, Kingdom of
- Würzburg, Diocese of
- Würzburg, University of
- Würzburg Abbeys
- Wyart, Théophile-Louis-Henri
- Wyche, Saint Richard de
- Wyclif, John
- Wyntoun, Andrew of
- Wyoming
- Xainctonge, Venerable Anne de
- Xaverian Brothers
- Xavier, Saint Francis
- Ximenes, Didacus
- Ximénez de Cisneros, Francisco
- Xystus I, Pope Saint
- Yahweh
- Yakima Indians
- Yamasee Indians
- Yaqui Indians
- Yazoo Indians
- Yellow Knives
- Yom Kippur
- York, Ancient See of
- York, Cardinal of
- York, Use of
- Youghal
- Youville, Marie-Marguérite d'
- Young Men's Institute
- Ysambert, Nicolas
- Yucatán, Archdiocese of
- Yukon, Prefecture Apostolic of
- Yun-nan
- Yuracaré Indians
- Yves, Saint
- Yves of Chartres, Saint
- Zabarella, Francesco
- Zabulon
- Zacatecas
- Zaccaria, Francesco Antonio
- Zacconi, Ludovico
- Zacharias
- Zacharias Chrysopolitanus
- Zachary, Pope Saint
- Zachary, Canticle of
- Zádori, János
- Zahle and Forzol
- Zakho
- Zallinger zum Thurn, Jacob Anton
- Zallwein, Gregor
- Zalvidea, José Maria de
- Zama
- Zambesi Mission
- Zamboanga, Diocese of
- Zamboni, Giuseppe
- Zamora
- Zamora
- Zamora
- Zampieri, Domenico
- Zängerle, Roman Sebastian
- Zante
- Zantedeschi, Francesco
- Zanzibar
- Zapoteca Indians
- Zara
- Zarai
- Zarlino, Gioseffe
- Zasius, Ulric
- Zeal
- Zegers, Nicholas Tacitus
- Zela
- Zell, Karl
- Zell, Ulrich
- Zengg-Modrus
- Zeno, Saint
- Zeno of Elea
- Zenobius, Saint
- Zenonopolis
- Zephaniah
- Zephyrinus, Pope Saint
- Zephyrium
- Zeugma
- Zeuss, Johann Kaspar
- Ziegelbauer, Magnoald
- Ziegler, Gregorius Thomas
- Zierikzee, Cornelius van
- Zigliara, Tommaso Maria
- Zimmer, Patrick Benedict
- Zingarelli, Niccolò Antonio
- Zingerle, Pius
- Zionists
- Zionites
- Zips
- Zircz
- Zita, Saint
- Zita's Home for Friendless Women, Saint
- Zoara
- Zoega, Jörgen
- Zolkiewski, Stanislaus
- Zonaras, John
- Zoque Indians
- Zosimus, Pope Saint
- Zosimus
- Zucchetto
- Zulia, Diocese of
- Zululand
- Zumárraga, Juan de
- Zuñi Indians
- Zurbaran, Francisco
- Zurich
- Zurla, Giacinto Placido
- Zwettl
- Zwingli, Ulrich
- Zwirner, Ernst Friedrich