A Links
- Aubery, Joseph (Catholic Encyclopedia)
- Agony of Christ (Catholic Encyclopedia)
- Amice (Catholic Encyclopedia)
- Agricola, Alexander (Catholic Encyclopedia)
- Annunciation of the Blessed Virgin Mary, The Feast of the (Catholic Encyclopedia)
- Assessor of the Holy Office (Catholic Encyclopedia)
- Antipodes (Catholic Encyclopedia)
- Andrew, Saint (Apostle and Martyr) (Catholic Encyclopedia)
- Ailbe, Saint (Catholic Encyclopedia)
- Advent (Catholic Encyclopedia)
- Armentia, Fray Nicolas (Catholic Encyclopedia)
- Amelia (Catholic Encyclopedia)
- Ange de Saint Joseph (Catholic Encyclopedia)
- Attalia (Catholic Encyclopedia)
- Amerigo Vespucci (Catholic Encyclopedia)
- Aspilcueta, Martin (Catholic Encyclopedia)
- Arles, The Synods of (Catholic Encyclopedia)
- Apollinaris Claudius, Saint (Catholic Encyclopedia)
- Armagh (Catholic Encyclopedia)
- Adelaide, Archdiocese of (Catholic Encyclopedia)
- Algonquins (Catholic Encyclopedia)
- Anderton, James (Catholic Encyclopedia)
- Amazones, Diocese of (Catholic Encyclopedia)
- Adytum (Catholic Encyclopedia)
- Archiereus (Catholic Encyclopedia)
- Agony, Archconfraternity of Holy (Catholic Encyclopedia)
- Arundel, Thomas (Catholic Encyclopedia)
- Andronicus, Probus, and Tarachus, Saints (Catholic Encyclopedia)
- Accommodation, Biblical (Catholic Encyclopedia)
- Achtermann, Theodore William (Catholic Encyclopedia)
- Argentina (Catholic Encyclopedia)
- Acqui (Catholic Encyclopedia)
- Augustine of Hippo, Works of Saint (Catholic Encyclopedia)
- Ansaloni, Giordano (Catholic Encyclopedia)
- Alexandrinus, Codex (Catholic Encyclopedia)
- Ansegisus (Catholic Encyclopedia)
- Anschar, Saint (Catholic Encyclopedia)
- Alessio (Catholic Encyclopedia)
- Apollonius of Ephesus (Catholic Encyclopedia)
- Analysis (Catholic Encyclopedia)
- Attracta, Saint (Catholic Encyclopedia)
- Accaron (Catholic Encyclopedia)
- Agapetus I, Pope Saint (Catholic Encyclopedia)
- Abelly, Louis (Catholic Encyclopedia)
- Aesthetics (Catholic Encyclopedia)
- Apostles' Creed (Catholic Encyclopedia)
- Angeli, Francesco degli (Catholic Encyclopedia)
- Ascoli, Satriano, and Cirignola (Catholic Encyclopedia)
- Archpriest Controversy (Catholic Encyclopedia)
- Acacius (Catholic Encyclopedia)
- Alvarado, Fray Francisco de (Catholic Encyclopedia)
- Affinity (in Canon Law) (Catholic Encyclopedia)
- Alvarez de Paz (Catholic Encyclopedia)
- Apostolici (Catholic Encyclopedia)
- Allocution (Catholic Encyclopedia)
- Anna Comnena (Catholic Encyclopedia)
- Anastasia, Saint (Catholic Encyclopedia)
- Asperges (Catholic Encyclopedia)
- Arnoudt, Peter Joseph (Catholic Encyclopedia)
- Aix-en-Provence, Councils of (Catholic Encyclopedia)
- Ambo (in the Russian and Greek Church) (Catholic Encyclopedia)
- Ascetical Theology (Catholic Encyclopedia)
- Autos Sacramentales (Catholic Encyclopedia)
- Arrighetti, Nicola (Catholic Encyclopedia)
- Adoption (Catholic Encyclopedia)
- Arts, Bachelor of (Catholic Encyclopedia)
- Ammonian Sections (Catholic Encyclopedia)
- Animuccia, Giovanni (Catholic Encyclopedia)
- Adelmann (Catholic Encyclopedia)
- Almond, John, Venerable (Catholic Encyclopedia)
- Abel (Catholic Encyclopedia)
- Acta Sanctae Sedis (Catholic Encyclopedia)
- Abjuration (Catholic Encyclopedia)
- Alexandrine Liturgy, The (Catholic Encyclopedia)
- Armagnac, Georges d' (Catholic Encyclopedia)
- Ashton, John (Catholic Encyclopedia)
- Amiatinus, Codex (Catholic Encyclopedia)
- Aquarians (Catholic Encyclopedia)
- Aubignac, Francois Hedelin, Abbe d' (Catholic Encyclopedia)
- Arcanum (Catholic Encyclopedia)
- Amasia (Catholic Encyclopedia)
- Anderson, Henry James (Catholic Encyclopedia)
- Argyropulos, John (Catholic Encyclopedia)
- Adeodatus I, Pope Saint (Catholic Encyclopedia)
- Allatius, Leo (Catholic Encyclopedia)
- Arcae (Catholic Encyclopedia)
- Absolute, The (Catholic Encyclopedia)
- Altar, History of the Christian (Catholic Encyclopedia)
- Alcantara, Military Order of (Catholic Encyclopedia)
- Andre, Bernard (Catholic Encyclopedia)
- Assumption, Sisters of the (Catholic Encyclopedia)
- Armada, The Spanish (Catholic Encyclopedia)
- Agostino Novello, Blessed (Catholic Encyclopedia)
- Arnold of Brescia (Catholic Encyclopedia)
- Amende Honorable (Catholic Encyclopedia)
- Alatri (Catholic Encyclopedia)
- Alphabet, Christian Use of the (Catholic Encyclopedia)
- Augustine, Rule of Saint (Catholic Encyclopedia)
- Abipones (Catholic Encyclopedia)
- Amen (Catholic Encyclopedia)
- Ashby, George (Catholic Encyclopedia)
- Annat, Francois (Catholic Encyclopedia)
- Auxerre, Councils of (Catholic Encyclopedia)
- Alea, Leonard (Catholic Encyclopedia)
- Agilulfus, Saint (Catholic Encyclopedia)
- Altar Tomb (Catholic Encyclopedia)
- Atomism (Catholic Encyclopedia)
- Alzate, Jose Antonio (Catholic Encyclopedia)
- Asterisk (Catholic Encyclopedia)
- Alexandria, The Church of (Catholic Encyclopedia)
- Alexandrian Library, The (Catholic Encyclopedia)
- Arsenius Autorianos (Catholic Encyclopedia)
- Amalarius of Metz (Catholic Encyclopedia)
- Apostolic Camera (Catholic Encyclopedia)
- Allemand, Jean (Catholic Encyclopedia)
- Allouez, Claude (Catholic Encyclopedia)
- Accessus (Catholic Encyclopedia)
- Atheism (Catholic Encyclopedia)
- Alban, Saint (Catholic Encyclopedia)
- Aachen (Catholic Encyclopedia)
- Aseity (Catholic Encyclopedia)
- Athanasius, Saint (Catholic Encyclopedia)
- Anemurium (Catholic Encyclopedia)
- Anthony, Saint (Catholic Encyclopedia)
- Alexander, Saint (Patriarch of Alexandria) (Catholic Encyclopedia)
- Alchemy (Catholic Encyclopedia)
- Adrian of Castello (Catholic Encyclopedia)
- Austin, John (Catholic Encyclopedia)
- Adrian V, Pope (Catholic Encyclopedia)
- Apostolicum Pascendi Minis (Catholic Encyclopedia)
- Assimilation, Psychological (Catholic Encyclopedia)
- Arizona (Catholic Encyclopedia)
- Annas (Catholic Encyclopedia)
- Abrasax (Catholic Encyclopedia)
- Alagoas (Catholic Encyclopedia)
- Alexandria (Catholic Encyclopedia)
- All Hallows College (Catholic Encyclopedia)
- Albert of Brandenburg (Catholic Encyclopedia)
- Amort, Eusebius (Catholic Encyclopedia)
- Anchorites (Catholic Encyclopedia)
- Albenga (Catholic Encyclopedia)
- Amorios (Catholic Encyclopedia)
- Arabian School of Philosophy (Catholic Encyclopedia)
- Alain de l'Isle (Catholic Encyclopedia)
- Acclamation (in Papal Elections) (Catholic Encyclopedia)
- Aci-Reale, The Diocese of (Catholic Encyclopedia)
- Alfieri, Count Vittorio (Catholic Encyclopedia)
- Atahuallpa (Catholic Encyclopedia)
- Acta Triadis Thaumaturgae (Catholic Encyclopedia)
- Aylward, James Ambrose Dominic (Catholic Encyclopedia)
- Archimandrite (Catholic Encyclopedia)
- Abdias of Babylon (Catholic Encyclopedia)
- Arsinoe (Catholic Encyclopedia)
- Angels, Early Christian Representations of (Catholic Encyclopedia)
- Anerio, Giovanni Francesco (Catholic Encyclopedia)
- Ascension, Feast of the (Catholic Encyclopedia)
- Alexander III, Pope (Catholic Encyclopedia)
- Agde, Council of (Catholic Encyclopedia)
- Abbot, Henry (Catholic Encyclopedia)
- Asceticism (Catholic Encyclopedia)
- Amyot, Jacques (Catholic Encyclopedia)
- Arnulf of Bavaria (Catholic Encyclopedia)
- Association, Right of Voluntary (Catholic Encyclopedia)
- Allori (Catholic Encyclopedia)
- Alfrida, Saint (Catholic Encyclopedia)
- Altar Breads (Catholic Encyclopedia)
- Abelard, Peter (Catholic Encyclopedia)
- Ancona, Ciriaco d' (Catholic Encyclopedia)
- Annegarn, Joseph (Catholic Encyclopedia)
- Agrippinus (Catholic Encyclopedia)
- Arabia (Catholic Encyclopedia)
- Aaron (Catholic Encyclopedia)
- Anatomy (Catholic Encyclopedia)
- Alexander II, Pope (Catholic Encyclopedia)
- Angelico, Fra (Catholic Encyclopedia)
- Aiguillon, Duchess of (Catholic Encyclopedia)
- Antonelli, Leonardo (Catholic Encyclopedia)
- Alcuin (Catholic Encyclopedia)
- Adami da Bolsena, Andrea (Catholic Encyclopedia)
- Arbogast, Saint (Catholic Encyclopedia)
- Athelney, The Abbey of (Catholic Encyclopedia)
- Aquinas, Saint Thomas (Catholic Encyclopedia)
- Anointing of the Sick (Catholic Encyclopedia)
- Anges, Notre Dame de (Catholic Encyclopedia)
- Aran, The Monastic School of (Catholic Encyclopedia)
- Artemon (Catholic Encyclopedia)
- Adrian I, Pope (Catholic Encyclopedia)
- Abbreviators (Catholic Encyclopedia)
- Aubermont, Jean-Antoine d' (Catholic Encyclopedia)
- Arator (Catholic Encyclopedia)
- Anderson, Patrick (Catholic Encyclopedia)
- Alvarez, Manoel (Catholic Encyclopedia)
- Arsenius, Saint (Catholic Encyclopedia)
- Agnes of Montepulciano, Saint (Catholic Encyclopedia)
- Acoemetae (Catholic Encyclopedia)
- Alcoholism (Catholic Encyclopedia)
- Ad Sanctam Beati Petri Sedem (Catholic Encyclopedia)
- Aguas Calientes (Catholic Encyclopedia)
- Apocrypha (Catholic Encyclopedia)
- Adams, Ven. John (Catholic Encyclopedia)
- Acephali (Catholic Encyclopedia)
- Arawaks (Catholic Encyclopedia)
- Arricivita, Juan (Catholic Encyclopedia)
- Azaria, Aristaces (Catholic Encyclopedia)
- Alcedo, Antonio de (Catholic Encyclopedia)
- Advocates of St. Peter (Catholic Encyclopedia)
- Athabasca (Catholic Encyclopedia)
- Acquapendente (Catholic Encyclopedia)
- Abram, Nicholas (Catholic Encyclopedia)
- Angola and Congo (Catholic Encyclopedia)
- Assyria (Catholic Encyclopedia)
- Alegre, Francisco Xavier (Catholic Encyclopedia)
- Alexander VII, Pope (Catholic Encyclopedia)
- Athens, Christian (Catholic Encyclopedia)
- Atrium (Catholic Encyclopedia)
- Altar Vase (Catholic Encyclopedia)
- Attigny, Councils of (Catholic Encyclopedia)
- Anhalt (Catholic Encyclopedia)
- Abra de Raconis, Charles Francois d' (Catholic Encyclopedia)
- Age, Canonical (Catholic Encyclopedia)
- Archange de Lyon (Catholic Encyclopedia)
- Anastasius II, Pope (Catholic Encyclopedia)
- Agape (Catholic Encyclopedia)
- Ambrosian Basilica (Catholic Encyclopedia)
- Alghero (Catholic Encyclopedia)
- Abington, Thomas (Catholic Encyclopedia)
- Andrew Corsini, Saint (Catholic Encyclopedia)
- Administrator (Catholic Encyclopedia)
- Ariosto, Ludovico (Catholic Encyclopedia)
- Abarca, Pedro (Catholic Encyclopedia)
- Abdication (Catholic Encyclopedia)
- Arras (Catholic Encyclopedia)
- Astruc, Jean (Catholic Encyclopedia)
- Acca, Saint (Catholic Encyclopedia)
- Avempace (Catholic Encyclopedia)
- Abortion (Catholic Encyclopedia)
- Antoniano, Giovanni (Catholic Encyclopedia)
- Associations, Pious (Catholic Encyclopedia)
- Ange de Sainte Rosalie (Catholic Encyclopedia)
- Andalusia (Catholic Encyclopedia)
- Arianism (Catholic Encyclopedia)
- Aquileian Rite (Catholic Encyclopedia)
- Altar Side (Catholic Encyclopedia)
- Abdias (Catholic Encyclopedia)
- Altamura and Acquaviva (Catholic Encyclopedia)
- Aufsees, Jobst Bernhard von (Catholic Encyclopedia)
- Aske, Robert (Catholic Encyclopedia)
- Abdera (Catholic Encyclopedia)
- Archer, James (Catholic Encyclopedia)
- Adeodatus (II), Pope Saint (Catholic Encyclopedia)
- Apostasy (Catholic Encyclopedia)
- Auxilius of Naples (Catholic Encyclopedia)
- Antiphon (in Greek Liturgy) (Catholic Encyclopedia)
- Anselm of Laon (Catholic Encyclopedia)
- Altar, Privileged (Catholic Encyclopedia)
- Asaph, Saint (Catholic Encyclopedia)
- Abundius (Catholic Encyclopedia)
- Antwerp (Catholic Encyclopedia)
- Allen, George (Catholic Encyclopedia)
- Anunciación, Fray Juan de la (Catholic Encyclopedia)
- Ascalon (Catholic Encyclopedia)
- Assistant at the Pontifical Throne (Catholic Encyclopedia)
- Athanasian Creed, The (Catholic Encyclopedia)
- Araujo, Antonio de (Catholic Encyclopedia)
- Altar Lanterns (Catholic Encyclopedia)
- Alvarus Pelagius (Catholic Encyclopedia)
- Aeterni Patris (Catholic Encyclopedia)
- Agonistici (Catholic Encyclopedia)
- Apostle Spoons (Catholic Encyclopedia)
- Alphege, Saint (Catholic Encyclopedia)
- Abbot, Commendatory (Catholic Encyclopedia)
- Archconfraternity (Catholic Encyclopedia)
- Ascoli-Piceno (Catholic Encyclopedia)
- Adamites (Catholic Encyclopedia)
- Abrabanel, Don Isaac (Catholic Encyclopedia)
- Arthur, James (Catholic Encyclopedia)
- Alfwold, Saint (Catholic Encyclopedia)
- Allen, Edward Patrick (Catholic Encyclopedia)
- Abban of Magheranoidhe, Saint (Catholic Encyclopedia)
- Amiot, Joseph Maria (Catholic Encyclopedia)
- Amalricians (Catholic Encyclopedia)
- Audiffredi (Catholic Encyclopedia)
- Aix, Archdiocese of (Catholic Encyclopedia)
- Anstey, Thomas Chisholm (Catholic Encyclopedia)
- Ahicam (Catholic Encyclopedia)
- Arias de Avila, Pedro (Catholic Encyclopedia)
- Adrian of Canterbury, Saint (Catholic Encyclopedia)
- Anthony of Sienna (Catholic Encyclopedia)
- Arrighetti, Nicolo (Catholic Encyclopedia)
- Abecedarians (Catholic Encyclopedia)
- Arias, Francis (Catholic Encyclopedia)
- Abecedaria (Catholic Encyclopedia)
- Angelicals, The (Catholic Encyclopedia)
- Andrew of Rhodes (Catholic Encyclopedia)
- Arden, Edward (Catholic Encyclopedia)
- Alcimus (Catholic Encyclopedia)
- Abbo Cernuus (Catholic Encyclopedia)
- Arguello, Luis Antonio (Catholic Encyclopedia)
- Africa (Catholic Encyclopedia)
- Acanthus (Catholic Encyclopedia)
- Apostolic Fathers, The (Catholic Encyclopedia)
- Acathistus (Catholic Encyclopedia)
- Adrian III, Pope Saint (Catholic Encyclopedia)
- Adams, James (Catholic Encyclopedia)
- Australia (Catholic Encyclopedia)
- Amat, Thaddeus (Catholic Encyclopedia)
- Avignon (Catholic Encyclopedia)
- Acacius (Catholic Encyclopedia)
- Apparitor (Catholic Encyclopedia)
- Amerbach, Veit (Catholic Encyclopedia)
- Agnes of Assisi, Saint (Catholic Encyclopedia)
- Arabici (Catholic Encyclopedia)
- Allen, John (Catholic Encyclopedia)
- Almeria (Catholic Encyclopedia)
- Allard, Paul (Catholic Encyclopedia)
- Ancyra (Catholic Encyclopedia)
- American College in Rome, The (Catholic Encyclopedia)
- Ampurias (Catholic Encyclopedia)
- Agapetus (Catholic Encyclopedia)
- Alexander of Lycopolis (Catholic Encyclopedia)
- Anderdon, William Henry (Catholic Encyclopedia)
- Adamnan, Saint (Catholic Encyclopedia)
- Alsace-Lorraine (Catholic Encyclopedia)
- Astronomy in the Bible (Catholic Encyclopedia)
- Auckland (Catholic Encyclopedia)
- Alma Redemptoris Mater (Catholic Encyclopedia)
- Asses, Feast of (Catholic Encyclopedia)
- Alexian Nuns (Catholic Encyclopedia)
- Andrew of Lonjumeau (Catholic Encyclopedia)
- Analogy (Catholic Encyclopedia)
- Andrew the Scot, Saint (Catholic Encyclopedia)
- Adjuration (Catholic Encyclopedia)
- Albrechtsberger, Johann G. (Catholic Encyclopedia)
- Adam of Usk (Catholic Encyclopedia)
- Albano (Catholic Encyclopedia)
- Arabia, Vicariate Apostolic of (Catholic Encyclopedia)
- Amraphel (Catholic Encyclopedia)
- Alexians (Catholic Encyclopedia)
- Alva, The Duke of (Catholic Encyclopedia)
- Ascension (Catholic Encyclopedia)
- Aeneas of Gaza (Catholic Encyclopedia)
- Aldfrith (Catholic Encyclopedia)
- Andrea Dotti, Blessed (Catholic Encyclopedia)
- Ave Maria (Catholic Encyclopedia)
- Adam of St. Victor (Catholic Encyclopedia)
- Albani (Catholic Encyclopedia)
- Ancyra, Councils of (Catholic Encyclopedia)
- Association of Priestly Perseverance (Catholic Encyclopedia)
- Altar Protector (Catholic Encyclopedia)
- Allegranza, Joseph (Catholic Encyclopedia)
- Animals, Cruelty to (Catholic Encyclopedia)
- Anderton, Blessed Robert (Catholic Encyclopedia)
- Atkinson, James (Catholic Encyclopedia)
- Antonio Maria Zaccaria, Saint (Catholic Encyclopedia)
- Averroes (Catholic Encyclopedia)
- Apologetics (Catholic Encyclopedia)
- Abercromby, Robert (Catholic Encyclopedia)
- Alma (Catholic Encyclopedia)
- Armellino, Mariano (Catholic Encyclopedia)
- Addai, Doctrine of (Catholic Encyclopedia)
- Attuda (Catholic Encyclopedia)
- Asser, John (Catholic Encyclopedia)
- Aldrovandi, Ulissi (Catholic Encyclopedia)
- Aloysius Gonzaga, Saint (Catholic Encyclopedia)
- Abraham (in Liturgy) (Catholic Encyclopedia)
- Anazco, Pedro de (Catholic Encyclopedia)
- Attiret, Jean Denis (Catholic Encyclopedia)
- Admonitions, Canonical (Catholic Encyclopedia)
- Alabama (Catholic Encyclopedia)
- Albertus Magnus, Saint (Catholic Encyclopedia)
- Ahriman and Ormuzd (Catholic Encyclopedia)
- Antiochene Liturgy (Catholic Encyclopedia)
- Adana (Catholic Encyclopedia)
- Actus Purus (Catholic Encyclopedia)
- Aurelius Antoninus, Marcus (Catholic Encyclopedia)
- Andrews, William Eusebius (Catholic Encyclopedia)
- Antoninus, Saint (Catholic Encyclopedia)
- Arethusa (Catholic Encyclopedia)
- Avesta, Theological Aspects of the (Catholic Encyclopedia)
- Alessi, Galeazzo (Catholic Encyclopedia)
- Angela Merici, Saint (Catholic Encyclopedia)
- Ackermann, Leopold (Catholic Encyclopedia)
- Aureoli, Petrus (Catholic Encyclopedia)
- Avendano, Fernando (Catholic Encyclopedia)
- Apparitions and Visions (Catholic Encyclopedia)
- Arca (Catholic Encyclopedia)
- Altar Canopy (Catholic Encyclopedia)
- Altar Rail (Catholic Encyclopedia)
- Amida (Catholic Encyclopedia)
- Abraham, The Bosom of (Catholic Encyclopedia)
- Alaman, Lucas (Catholic Encyclopedia)
- Albigenses (Catholic Encyclopedia)
- Alms and Almsgiving (Catholic Encyclopedia)
- Alessandria della Paglia (Catholic Encyclopedia)
- Agnus Dei (Catholic Encyclopedia)
- Allot, William (Catholic Encyclopedia)
- Anastasius IV, Pope (Catholic Encyclopedia)
- Andrea, Giovanni d' (Catholic Encyclopedia)
- Aelfric, Abbot of Eynsham (Catholic Encyclopedia)
- Artoklasia (Catholic Encyclopedia)
- Alumnus (Catholic Encyclopedia)
- Addas (Catholic Encyclopedia)
- Alypius, Saint (Catholic Encyclopedia)
- Ampe, Andre-Marie (Catholic Encyclopedia)
- Abarim (Catholic Encyclopedia)
- Abgar, The Legend of (Catholic Encyclopedia)
- Aggeus (Haggai) (Catholic Encyclopedia)
- Abstemii (Catholic Encyclopedia)
- Apsidiole (Catholic Encyclopedia)
- Apocatastasis (Catholic Encyclopedia)
- Alphonsus Liguori, Saint (Catholic Encyclopedia)
- Anglican Orders (Catholic Encyclopedia)
- Andreis, Felix de (Catholic Encyclopedia)
- Auch (Catholic Encyclopedia)
- Alumbrados (Catholic Encyclopedia)
- Adultery (Catholic Encyclopedia)
- Aston (Catholic Encyclopedia)
- Alvarado, Pedro de (Catholic Encyclopedia)
- Agnelli, Fra. Guglielmo (Catholic Encyclopedia)
- Aurelius (Catholic Encyclopedia)
- Antioch, The Church of (Catholic Encyclopedia)
- Anthemius (Catholic Encyclopedia)
- Articles of Faith (Catholic Encyclopedia)
- Angelo Carletti di Chivasso, Blessed (Catholic Encyclopedia)
- Aureliopolis (Catholic Encyclopedia)
- Annius of Viterbo (Catholic Encyclopedia)
- Albert of Castile (Catholic Encyclopedia)
- Anselme, Antoine (Catholic Encyclopedia)
- Anglicanism (Catholic Encyclopedia)
- Arezzo (Catholic Encyclopedia)
- Altar Steps (Catholic Encyclopedia)
- Araucania (Catholic Encyclopedia)
- Antonio of Vicenza, Maria (Catholic Encyclopedia)
- Anne-Marie Javouhey, Blessed (Catholic Encyclopedia)
- Anathema (Catholic Encyclopedia)
- Apostolic Constitutions (Catholic Encyclopedia)
- Anderson, Lionel Albert (Catholic Encyclopedia)
- Apostolicity (Catholic Encyclopedia)
- Aben-Ezra, Abraham-ben-Meir (Catholic Encyclopedia)
- Avignon, University of (Catholic Encyclopedia)
- Ambrose, Saint (Catholic Encyclopedia)
- Anger (Catholic Encyclopedia)
- Ava (Catholic Encyclopedia)
- Alfieri, Pietro (Catholic Encyclopedia)
- Augsburg (Catholic Encyclopedia)
- Apaches (Catholic Encyclopedia)
- Alba Pompeia, Diocese of (Catholic Encyclopedia)
- Alexander, Name of Several Bishops in the Early Christian Period (Catholic Encyclopedia)
- Assisi (Catholic Encyclopedia)
- Amias, Blessed John (Catholic Encyclopedia)
- Avila, Francisco de (Catholic Encyclopedia)
- Abomination of Desolation, The (Catholic Encyclopedia)
- Aldhelm, Saint (Catholic Encyclopedia)
- Assessors (Catholic Encyclopedia)
- Auctorem Fidei (Catholic Encyclopedia)
- Alton (Catholic Encyclopedia)
- Amalec (Catholic Encyclopedia)
- Ailly, Pierre d' (Catholic Encyclopedia)
- Aisle (Catholic Encyclopedia)
- Anglo-Saxon Church, The (Catholic Encyclopedia)
- Allen, John (Catholic Encyclopedia)
- Amphorae (Catholic Encyclopedia)
- Aurea (Catholic Encyclopedia)
- Andleby, Blessed William (Catholic Encyclopedia)
- Anthony of Padua, Saint (Catholic Encyclopedia)
- Atonement, Day of (Catholic Encyclopedia)
- Autun (Catholic Encyclopedia)
- Achitopel (Catholic Encyclopedia)
- Agricius, Saint (Catholic Encyclopedia)
- Aichinger, Gregor (Catholic Encyclopedia)
- Anderton, Roger (Catholic Encyclopedia)
- Abbe (Catholic Encyclopedia)
- Adonias (Catholic Encyclopedia)
- Aldric, Saint (Catholic Encyclopedia)
- Apollinaris, Saint (Catholic Encyclopedia)
- Adorno, Francis (Catholic Encyclopedia)
- Avatar (Catholic Encyclopedia)
- Agrapha (Catholic Encyclopedia)
- Apse (Catholic Encyclopedia)
- Arundell (Catholic Encyclopedia)
- Accentus Ecclesiasticus (Catholic Encyclopedia)
- Autocephali (Catholic Encyclopedia)
- Augustinus-Verein, The (Catholic Encyclopedia)
- Amos (Catholic Encyclopedia)
- Atavism (Catholic Encyclopedia)
- Advocatus Diaboli (Catholic Encyclopedia)
- Aymara (Catholic Encyclopedia)
- Abdon and Sennen, Saints (Catholic Encyclopedia)
- Abduction (Catholic Encyclopedia)
- Apollinaris (Catholic Encyclopedia)
- Amastris (Catholic Encyclopedia)
- Abiathar (Catholic Encyclopedia)
- Archdeacon (Catholic Encyclopedia)
- Assmayer, Ignaz (Catholic Encyclopedia)
- Architecture, Ecclesiastical (Catholic Encyclopedia)
- Angilbert, Saint (Catholic Encyclopedia)
- Aquileia (Catholic Encyclopedia)
- Abandonment (Catholic Encyclopedia)
- Accomplice (Catholic Encyclopedia)
- Atkinson, Venerable Thomas (Catholic Encyclopedia)
- Arkansas (Catholic Encyclopedia)
- Aberle, Moritz von (Catholic Encyclopedia)
- Altarpiece (Catholic Encyclopedia)
- Almedha, Saint (Catholic Encyclopedia)
- Azor, Juan (Catholic Encyclopedia)
- Apocrisiarius (Catholic Encyclopedia)
- Annunciation of the Blessed Virgin Mary, The Fact of the (Catholic Encyclopedia)
- Antiphonary, Gregorian (Catholic Encyclopedia)
- Asia Minor (Catholic Encyclopedia)
- Alb (Catholic Encyclopedia)
- Apostolic College (Catholic Encyclopedia)
- Agnellus of Pisa, Blessed (Catholic Encyclopedia)
- Adeste Fidelis (Catholic Encyclopedia)
- Acts of Roman Congregations (Catholic Encyclopedia)
- Amulet (Catholic Encyclopedia)
- Augustus Abbey, Fort (Catholic Encyclopedia)
- Aphian, Saint (Catholic Encyclopedia)
- Antipope (Catholic Encyclopedia)
- Abisai (Catholic Encyclopedia)
- Allegri, Gregorio (Catholic Encyclopedia)
- Anastasius, Saint (Bishop of Antioch) (Catholic Encyclopedia)
- Amorbach (Catholic Encyclopedia)
- Ausonius, Decimus Magnus (Catholic Encyclopedia)
- Adar (Catholic Encyclopedia)
- Apostles, Acts of the (Catholic Encyclopedia)
- Anathoth (Catholic Encyclopedia)
- Ancona and Umana (Catholic Encyclopedia)
- Abingdon, The Abbey of (Catholic Encyclopedia)
- Albert II, Archbishop of Magdeburg in Saxony (Catholic Encyclopedia)
- Amyclae (Catholic Encyclopedia)
- Adalbert I (Catholic Encyclopedia)
- Acts, Human (Catholic Encyclopedia)
- Antioch of Syria (Catholic Encyclopedia)
- Apotactics (Catholic Encyclopedia)
- Albert of Aachen (Catholic Encyclopedia)
- Andrea Pisano (Catholic Encyclopedia)
- Articles, The Organic (Catholic Encyclopedia)
- Apostolic Letters (Catholic Encyclopedia)
- Aerius of Pontus (Catholic Encyclopedia)
- Atonement, Doctrine of the (Catholic Encyclopedia)
- Atto of Pistoia (Catholic Encyclopedia)
- Adalbert, Saint, Bishop of Prague (Catholic Encyclopedia)
- Arrowsmith, Saint Edmund (Catholic Encyclopedia)
- Altars (in Scripture) (Catholic Encyclopedia)
- Antonius (Catholic Encyclopedia)
- Alegambe, Philippe (Catholic Encyclopedia)
- Almond, Oliver (Catholic Encyclopedia)
- Aegidius of Assisi, Blessed (Catholic Encyclopedia)
- Alarcon, Pedro Antonio de (Catholic Encyclopedia)
- Actus et Potentia (Catholic Encyclopedia)
- Aversa, Diocese of (Catholic Encyclopedia)
- Anima, College and Church of the (Catholic Encyclopedia)
- Ardilliers, Notre Dame des (Catholic Encyclopedia)
- Ascendente Domino (Catholic Encyclopedia)
- Apostolic See, The (Catholic Encyclopedia)
- Acerenza (Catholic Encyclopedia)
- Abila (Catholic Encyclopedia)
- Attributes, Divine (Catholic Encyclopedia)
- Angulo, Pedro (Catholic Encyclopedia)
- Anglesea, The Priory of (Catholic Encyclopedia)
- Assemani (Catholic Encyclopedia)
- Apolytikion (Catholic Encyclopedia)
- Atrib (Catholic Encyclopedia)
- Amico, Francesco (Catholic Encyclopedia)
- Archives, Ecclesiastical (Catholic Encyclopedia)
- Arason Jon (Catholic Encyclopedia)
- Ampleforth, The Abbey of (Catholic Encyclopedia)
- Azarias, Brother (Catholic Encyclopedia)
- Auenbrugger, Leopold (Catholic Encyclopedia)
- Academies, Roman (Catholic Encyclopedia)
- Abyssinia (Catholic Encyclopedia)
- Abaddon (Catholic Encyclopedia)
- Alger of Liege (Catholic Encyclopedia)
- Antonelli, Nicolo Maria (Catholic Encyclopedia)
- Athias, Joseph (Catholic Encyclopedia)
- Augustine of Canterbury, Saint (Catholic Encyclopedia)
- Arculf (Catholic Encyclopedia)
- Albert, Bishop of Riga (Catholic Encyclopedia)
- Alexander VIII, Pope (Catholic Encyclopedia)
- Archdeacon, Richard (Catholic Encyclopedia)
- Alexander I, Pope Saint (Catholic Encyclopedia)
- Authenticity of the Bible (Catholic Encyclopedia)
- Assur (multiple definitions) (Catholic Encyclopedia)
- Assemblies of the French Clergy (Catholic Encyclopedia)
- Araujo, Francisco de (Catholic Encyclopedia)
- Anterus, Pope Saint (Catholic Encyclopedia)
- Aseneth (Catholic Encyclopedia)
- Alalis (Catholic Encyclopedia)
- Apostolic Expeditors (Catholic Encyclopedia)
- Annibale d'Annibaldi (Catholic Encyclopedia)
- Alogi (Catholic Encyclopedia)
- Alexander of Abonoteichos (Catholic Encyclopedia)
- Antiochus of Palestine (Catholic Encyclopedia)
- Adam of Fulda (Catholic Encyclopedia)
- Amphilochius of Iconium (Catholic Encyclopedia)
- Adam Scotus (Catholic Encyclopedia)
- Ancren Riwle (Catholic Encyclopedia)
- Agnellus, Andreas, of Ravenna (Catholic Encyclopedia)
- Arts, Master of (Catholic Encyclopedia)
- Axum (Catholic Encyclopedia)
- Alberti, Leone Battista (Catholic Encyclopedia)
- Antiphellos (Catholic Encyclopedia)
- Anatolius, Saint, Bishop of Laodicea (Catholic Encyclopedia)
- Acacia (Catholic Encyclopedia)
- Agnelli, Giuseppe (Catholic Encyclopedia)
- Anglin, Timothy Warren (Catholic Encyclopedia)
- Aguirre, Joseph Saenz de (Catholic Encyclopedia)
- Angelus, Silesius (Catholic Encyclopedia)
- Annates (Catholic Encyclopedia)
- Antigonish (Catholic Encyclopedia)
- Alpini, Prospero (Catholic Encyclopedia)
- Appetite (Catholic Encyclopedia)
- Ama (Catholic Encyclopedia)
- Angora (Catholic Encyclopedia)
- Anaesthesia (Catholic Encyclopedia)
- Ashby, Thomas (Catholic Encyclopedia)
- Archbishop (Catholic Encyclopedia)
- Agram (Catholic Encyclopedia)
- Alexander V (Catholic Encyclopedia)
- Ambrose of Camaldoli, Saint (Catholic Encyclopedia)
- Aymeric of Piacenza (Catholic Encyclopedia)
- Anastasiopolis (Catholic Encyclopedia)
- Almeida, John (Catholic Encyclopedia)
- Aileran, Saint (Catholic Encyclopedia)
- Arbieto, Ignacio de (Catholic Encyclopedia)
- Advocates of Roman Congregations (Catholic Encyclopedia)
- Apostolici Ministerii (Catholic Encyclopedia)
- Aquila and Priscilla (Catholic Encyclopedia)
- Aurispa, Giovanni (Catholic Encyclopedia)
- Acton, Charles Januarius (Catholic Encyclopedia)
- Angiolini, Francesco (Catholic Encyclopedia)
- Agricola, Rudolph (Catholic Encyclopedia)
- Alfonso of Burgos (Catholic Encyclopedia)
- Ambrosian Chant (Catholic Encyclopedia)
- Ampullae (Catholic Encyclopedia)
- Abstraction (Catholic Encyclopedia)
- All Souls' Day (Catholic Encyclopedia)
- Abraham (Catholic Encyclopedia)
- Anacletus, Pope Saint (Catholic Encyclopedia)
- Aelnoth (Catholic Encyclopedia)
- Aristotle (Catholic Encyclopedia)
- Antony, Franz Joseph (Catholic Encyclopedia)
- Angela of Foligno, Blessed (Catholic Encyclopedia)
- Adelham, John Placid (Catholic Encyclopedia)
- Avicenna (Catholic Encyclopedia)
- Ado of Vienne, Saint (Catholic Encyclopedia)
- Ambarach, Peter (Catholic Encyclopedia)
- Alphonsus Rodriguez, Saint (Catholic Encyclopedia)
- Athos, Mount (Catholic Encyclopedia)
- Abstinence (Catholic Encyclopedia)
- Abbot (Catholic Encyclopedia)
- Albert Berdini of Sarteano, Blessed (Catholic Encyclopedia)
- Andrew of Crete, Saint (Catholic Encyclopedia)
- Agathias (Catholic Encyclopedia)
- Allen, Frances (Catholic Encyclopedia)
- Acre (Catholic Encyclopedia)
- Alagona, Pietro (Catholic Encyclopedia)
- Albany (Catholic Encyclopedia)
- Agnes of Rome, Saint (Catholic Encyclopedia)
- Adelaide, Saint (Wife of Otho) (Catholic Encyclopedia)
- Agra (Catholic Encyclopedia)
- Arts, The Faculty of (Catholic Encyclopedia)
- Ambros, August Wilhelm (Catholic Encyclopedia)
- Afonzo de Albuquerque (Catholic Encyclopedia)
- Act of Settlement (Irish) (Catholic Encyclopedia)
- Armidale (Catholic Encyclopedia)
- Agapetae (Catholic Encyclopedia)
- Adulteration of Food (Catholic Encyclopedia)
- Ave Regina (Catholic Encyclopedia)
- Agnus Dei (in Liturgy) (Catholic Encyclopedia)
- Alpha and Omega (in Scripture) (Catholic Encyclopedia)
- Achilleus and Nereus, Domitilla and Pancratius, Saints (Catholic Encyclopedia)
- Altar, Portable (Catholic Encyclopedia)
- Auxentius of Mopsuestia (Catholic Encyclopedia)
- Adrian VI, Pope (Catholic Encyclopedia)
- Azevedo, Luiz de (Catholic Encyclopedia)
- Angel (Catholic Encyclopedia)
- Atom (Catholic Encyclopedia)
- Alpha and Omega (Catholic Encyclopedia)
- Anima Christi (Catholic Encyclopedia)
- Arnulf of Metz, Saint (Catholic Encyclopedia)
- Apelles (Catholic Encyclopedia)
- Astros, Paul-Therese-David d' (Catholic Encyclopedia)
- Approbation (Catholic Encyclopedia)
- Angelus (Catholic Encyclopedia)
- Achor Valley (Catholic Encyclopedia)
- Augustine of Hippo, Teaching of Saint (Catholic Encyclopedia)
- Apostles, Portraits of the (Catholic Encyclopedia)
- Azores (Catholic Encyclopedia)
- Abel, Blessed Thomas (Catholic Encyclopedia)
- Advertisements, Book of (Catholic Encyclopedia)
- Altruism (Catholic Encyclopedia)
- Ad Limina Apostolorum (Catholic Encyclopedia)
- Allerstein, August (Catholic Encyclopedia)
- Abbon, Saint (Catholic Encyclopedia)
- Alva y Astorga, Pedro d' (Catholic Encyclopedia)
- Andrada de Payva, Diego (Catholic Encyclopedia)
- Aporti, Ferrante (Catholic Encyclopedia)
- Abiogenesis and Biogenesis (Catholic Encyclopedia)
- Agricola, George (Catholic Encyclopedia)
- Arabia, Councils of (Catholic Encyclopedia)
- Asgaard (Catholic Encyclopedia)
- Altar Lamp (Catholic Encyclopedia)
- Aengus, Saint (the Culdee) (Catholic Encyclopedia)
- Antediluvians (Catholic Encyclopedia)
- Angers (Catholic Encyclopedia)
- Aleppo (Catholic Encyclopedia)
- Asia (Catholic Encyclopedia)
- Acceptance (Catholic Encyclopedia)
- Athenry (Catholic Encyclopedia)
- Archdiocese (Catholic Encyclopedia)
- Argenson, Pierre de Voyer d' (Catholic Encyclopedia)
- Arches, The Court of (Catholic Encyclopedia)
- Anselm of Liege (Catholic Encyclopedia)
- Alliance, Holy (Catholic Encyclopedia)
- Alexander Natalis (Catholic Encyclopedia)
- Abortion, Physical Effects of (Catholic Encyclopedia)
- Ausculta Fili (Catholic Encyclopedia)
- Ambrosian Liturgy and Rite (Catholic Encyclopedia)
- Acre (Catholic Encyclopedia)
- Amalberga, Saint (Catholic Encyclopedia)
- Angeli, Girolamo degli (Catholic Encyclopedia)
- Amathus (Catholic Encyclopedia)
- Afflighem (Catholic Encyclopedia)
- Alexander (Name of Seven Men) (Catholic Encyclopedia)
- Amalricus Augerii (Catholic Encyclopedia)
- Admont (Catholic Encyclopedia)
- Aelred, Saint (Catholic Encyclopedia)
- Apophthegmata Patrum (Catholic Encyclopedia)
- Abbreviation, Methods of (Catholic Encyclopedia)
- Alimony (Catholic Encyclopedia)
- Asti (Catholic Encyclopedia)
- Arevalo, Faustino (Catholic Encyclopedia)
- Aristides (Catholic Encyclopedia)
- Arnold (Catholic Encyclopedia)
- Avignon, Councils of (Catholic Encyclopedia)
- Auxentius of Milan (Catholic Encyclopedia)
- Agathangelus (Catholic Encyclopedia)
- Angra (Catholic Encyclopedia)
- Ashton, Venerable Roger (Catholic Encyclopedia)
- Armenierstadt (Catholic Encyclopedia)
- Assam (Catholic Encyclopedia)
- Acts of the Martyrs (Catholic Encyclopedia)
- Abel (Catholic Encyclopedia)
- Athens, Modern Diocese of (Catholic Encyclopedia)
- Alberta and Saskatchewan (Catholic Encyclopedia)
- Altar Carpets (Catholic Encyclopedia)
- Ambronay, Our Lady of (Catholic Encyclopedia)
- Ammon, Saint (Catholic Encyclopedia)
- Apolysis (Catholic Encyclopedia)
- Agar, William Seth (Catholic Encyclopedia)
- Agnetz (Catholic Encyclopedia)
- Administrator (of Ecclesiastical Property) (Catholic Encyclopedia)
- Acacius, Saint (Catholic Encyclopedia)
- Abraham Ecchelensis (Catholic Encyclopedia)
- Adam, The Books of (Catholic Encyclopedia)
- Apostolici Regiminis (Catholic Encyclopedia)
- Arch (Catholic Encyclopedia)
- Argyll and the Isles, Diocese of (Catholic Encyclopedia)
- Antoniano, Silvio (Catholic Encyclopedia)
- Ancilla Dei (Catholic Encyclopedia)
- Aetius (Catholic Encyclopedia)
- Akominatos, Michael & Nicetas (Catholic Encyclopedia)
- Andrew Bobola, Saint (Catholic Encyclopedia)
- Apostleship of Prayer, The (Catholic Encyclopedia)
- Agreda, Maria de (Catholic Encyclopedia)
- Armenia (Catholic Encyclopedia)
- Altar Curtain (Catholic Encyclopedia)
- Antinomianism (Catholic Encyclopedia)
- Assideans (Catholic Encyclopedia)
- Alexandre, Dom Jacques (Catholic Encyclopedia)
- Albergati, Niccolo (Catholic Encyclopedia)
- Alvarez, Diego (Catholic Encyclopedia)
- Ariano (Catholic Encyclopedia)
- Adria (Catholic Encyclopedia)
- Albero de Montreuil (Catholic Encyclopedia)
- Andre, Yves Marie (Catholic Encyclopedia)
- Altar Vessels (Catholic Encyclopedia)
- Adalard, Saint (Catholic Encyclopedia)
- Aimerich, Mateo (Catholic Encyclopedia)
- Arias Montanus, Benedictus (Catholic Encyclopedia)
- Artvin (Catholic Encyclopedia)
- Adelaide, Saint (Abbess) (Catholic Encyclopedia)
- Audisio, Guglielmo (Catholic Encyclopedia)
- Allen, William (Catholic Encyclopedia)
- Amelote, Denis (Catholic Encyclopedia)
- Albertini, Nicolo (Catholic Encyclopedia)
- Appropriation (Catholic Encyclopedia)
- Aegidius of Viterbo (Catholic Encyclopedia)
- Avancini, Nicola (Catholic Encyclopedia)
- Alvarado, Alonzo de (Catholic Encyclopedia)
- Almagro, Diego de (Catholic Encyclopedia)
- Agrarianism (Catholic Encyclopedia)
- Absalom (Catholic Encyclopedia)
- Altar, High (Catholic Encyclopedia)
- Avril, Philippe (Catholic Encyclopedia)
- Aurelian (Catholic Encyclopedia)
- Altars (in the Greek Churches) (Catholic Encyclopedia)
- Anselm of Lucca the Younger, Saint (Catholic Encyclopedia)
- Aeterni Patris (Catholic Encyclopedia)
- Attaliates, Michael (Catholic Encyclopedia)
- Assuerus (Catholic Encyclopedia)
- Anna Maria Gesualda Antonia Taigi, Blessed (Catholic Encyclopedia)
- Antiphon (Catholic Encyclopedia)
- Art, Ecclesiastical (Catholic Encyclopedia)
- Alemany, Joseph Sadoc (Catholic Encyclopedia)
- Abercius, Inscription of (Catholic Encyclopedia)
- Alberti, Leandro (Catholic Encyclopedia)
- Abercromby, John (Catholic Encyclopedia)
- Abraham a Sancta Clara (Catholic Encyclopedia)
- Accession (Catholic Encyclopedia)
- Almici, Camillo (Catholic Encyclopedia)
- Azotus (Catholic Encyclopedia)
- Antoniewicz, Charles (Catholic Encyclopedia)
- Alenio, Guilio (Catholic Encyclopedia)
- Alcmund, Saint (Catholic Encyclopedia)
- Attila the Hun (Catholic Encyclopedia)
- Achterfeldt, Johann Heinrich (Catholic Encyclopedia)
- Aubarede, Jean-Michel-d'Astorg (Catholic Encyclopedia)
- Altar Candles (Catholic Encyclopedia)
- Andres, Juan (Catholic Encyclopedia)
- Abbot, Lay (Catholic Encyclopedia)
- Abyss (Catholic Encyclopedia)
- Adalbert (Catholic Encyclopedia)
- Alexander IV, Pope (Catholic Encyclopedia)
- Amphilochius of Sida (Catholic Encyclopedia)
- Adauctus and Felix, Saints (Catholic Encyclopedia)
- Adam (Catholic Encyclopedia)
- Alexander, Saint (Bishop of Comana) (Catholic Encyclopedia)
- Ambo (Catholic Encyclopedia)
- Antidoron (Catholic Encyclopedia)
- Anerio, Felice (Catholic Encyclopedia)
- Anslo, Reyer (Catholic Encyclopedia)
- Altar Candlesticks (Catholic Encyclopedia)
- Aubusson, Pierre d' (Catholic Encyclopedia)
- Ambulatory (Catholic Encyclopedia)
- Albi, Council of (Catholic Encyclopedia)
- Anna (Catholic Encyclopedia)
- Agnoetae (Catholic Encyclopedia)
- Aranda, Council of (Catholic Encyclopedia)
- Aquileia, Councils of (Catholic Encyclopedia)
- Allioli, Joseph Franz (Catholic Encyclopedia)
- Arbroath, Abbey of (Catholic Encyclopedia)
- Acta Sanctorum Hiberniae (Catholic Encyclopedia)
- Antiphon, Communion (Catholic Encyclopedia)
- Antiquities, Biblical (Catholic Encyclopedia)
- Acquaviva, Claudius (Catholic Encyclopedia)
- Ad Limina Visit (Catholic Encyclopedia)
- Adam of Perseigne (Catholic Encyclopedia)
- Antipatris (Catholic Encyclopedia)
- Alfred the Great (Catholic Encyclopedia)
- Arbuthnott, Missal of (Catholic Encyclopedia)
- Accident (Catholic Encyclopedia)
- Arnauld (Catholic Encyclopedia)
- Acclamation (Catholic Encyclopedia)
- Augustinus, Antonius (Catholic Encyclopedia)
- Aedan of Ferns, Saint (Catholic Encyclopedia)
- Affirmation (Catholic Encyclopedia)
- Assur (titular see) (Catholic Encyclopedia)
- Altar Bell (Catholic Encyclopedia)
- Antiphon (in the Greek Church) (Catholic Encyclopedia)
- Archelais (Catholic Encyclopedia)
- Arlegui, Fray Jose (Catholic Encyclopedia)
- Assizes of Jerusalem (Catholic Encyclopedia)
- Acton, John Francis Edward (Catholic Encyclopedia)
- Adoption, Supernatural (Catholic Encyclopedia)
- Agrippa of Nettesheim, Heinrich Cornelius (Catholic Encyclopedia)
- Arni Thorlaksson (Catholic Encyclopedia)
- Ash Wednesday (Catholic Encyclopedia)
- Amiens, Diocese of (Catholic Encyclopedia)
- Adullam (Catholic Encyclopedia)
- Acton, John (Catholic Encyclopedia)
- Allies, Thomas William (Catholic Encyclopedia)
- Anastasius Bibliothecarius (Catholic Encyclopedia)
- Abbess (Catholic Encyclopedia)
- Adam of Murimuth (Catholic Encyclopedia)
- Arevalo, Rodriguez Sanchez de (Catholic Encyclopedia)
- Albright Brethren, The (Catholic Encyclopedia)
- Alexander Briant, Saint (Catholic Encyclopedia)
- Albi, Juan de (Catholic Encyclopedia)
- Apostolicae Servitutis (Catholic Encyclopedia)
- Arcachon, Our Lady of (Catholic Encyclopedia)
- Apostolicae Curae (Catholic Encyclopedia)
- Anarchy (Catholic Encyclopedia)
- Arnoldi, Bartholomaeus (Catholic Encyclopedia)
- Assumption of Mary, Feast of the (Catholic Encyclopedia)
- Apollonia, Saint (Catholic Encyclopedia)
- Altar Breadboxes (Catholic Encyclopedia)
- Archontics (Catholic Encyclopedia)
- Altar, Double (Catholic Encyclopedia)
- Archaeology, The Commission of Sacred (Catholic Encyclopedia)
- Aumbry (Catholic Encyclopedia)
- Aztecs (Catholic Encyclopedia)
- Auditor (Catholic Encyclopedia)
- Alighieri, Dante (Catholic Encyclopedia)
- Absolution (Catholic Encyclopedia)
- Aunarius, Saint (Catholic Encyclopedia)
- Altar Horns (Catholic Encyclopedia)
- Andrada, Alonso (Catholic Encyclopedia)
- Alberoni, Giulio (Catholic Encyclopedia)
- Acts, Canonical (Catholic Encyclopedia)
- Ardchatten, The Priory of (Catholic Encyclopedia)
- Astorga (Catholic Encyclopedia)
- Aikenhead, Mary (Catholic Encyclopedia)
- Allison, William (Catholic Encyclopedia)
- Allahabad (Catholic Encyclopedia)
- Antimensium (Catholic Encyclopedia)
- Anne d'Auray, Sainte (Catholic Encyclopedia)
- Aser (Catholic Encyclopedia)
- Augustine of Hippo, Life of Saint (Catholic Encyclopedia)
- Anazarbus (Catholic Encyclopedia)
- Aduarte, Diego Francisco (Catholic Encyclopedia)
- Andreas of Ratisbon (Catholic Encyclopedia)
- Ayeta, Fray Francisco de (Catholic Encyclopedia)
- Asiongaber (Catholic Encyclopedia)
- Acciajuoli (Catholic Encyclopedia)
- Altar Stone (Catholic Encyclopedia)
- Amadeo, Giovanni Antonio (Catholic Encyclopedia)
- Alaska (Catholic Encyclopedia)
- Assicus, Saint (Catholic Encyclopedia)
- Astronomy (Catholic Encyclopedia)
- Agapetus II, Pope (Catholic Encyclopedia)
- Adalbert, Saint, Bishop of Magdeburg (Catholic Encyclopedia)
- Arethas of Caesarea (Catholic Encyclopedia)
- Agatho, Pope Saint (Catholic Encyclopedia)
- Aurora Lucis Rutilat (Catholic Encyclopedia)
- Art, Christian (Catholic Encyclopedia)
- Aldersbach (Catholic Encyclopedia)
- Aedh of Kildare (Catholic Encyclopedia)
- Aenon (Catholic Encyclopedia)
- Arnulf of Lisieux (Catholic Encyclopedia)
- Apocalypse, Book of (Catholic Encyclopedia)
- Altar Frontal (Catholic Encyclopedia)
- Albinus (Catholic Encyclopedia)
- Annals, Ecclesiastical (Catholic Encyclopedia)
- Alvarez, Balthazar (Catholic Encyclopedia)
- Apodosis (Catholic Encyclopedia)
- Anicetus, Pope Saint (Catholic Encyclopedia)
- Achaicus (Catholic Encyclopedia)
- Amoy (Catholic Encyclopedia)
- Abenakis (Catholic Encyclopedia)
- Adoptionism (Catholic Encyclopedia)
- Anne de Beaupre, Sainte (Catholic Encyclopedia)
- Austremonius, Saint (Catholic Encyclopedia)
- Ayllon, Lucas Vesquez de (Catholic Encyclopedia)
- Atkinson, Sarah (Catholic Encyclopedia)
- Ammonites (Catholic Encyclopedia)
- Age of Reason (Catholic Encyclopedia)
- Acidalius, Valens (Catholic Encyclopedia)
- Acanthus (Catholic Encyclopedia)
- Achaia (Catholic Encyclopedia)
- Anchieta, Joseph (Catholic Encyclopedia)
- Apostolic Majesty (Catholic Encyclopedia)
- Aphraates (Catholic Encyclopedia)
- Altmann, Blessed (Catholic Encyclopedia)
- Anselm, Saint, Abbot of Nonantula (Catholic Encyclopedia)
- Appeal as from an abuse (Catholic Encyclopedia)
- Aosta (Catholic Encyclopedia)
- Aviz, Order of (Catholic Encyclopedia)
- Avranches, Council of (Catholic Encyclopedia)
- American College in Rome, The South (Catholic Encyclopedia)
- Atkinson, Paul, of St. Francis (Catholic Encyclopedia)
- Arthur, Thomas (Catholic Encyclopedia)
- Apostolic Church-Ordinance (Catholic Encyclopedia)
- Alexander of Jerusalem, Saint (Catholic Encyclopedia)
- Adelard of Bath (Catholic Encyclopedia)
- Alleluia (Catholic Encyclopedia)
- Archinto, Filipo (Catholic Encyclopedia)
- Anglona-Tursi (Catholic Encyclopedia)
- Arnolfo di Cambio (Catholic Encyclopedia)
- Annecy (Catholic Encyclopedia)
- Arcadelt, Jacob (Catholic Encyclopedia)