Roman Catholic and Orthodox churches: General Biographies
- Abbo of Fleury
- Abel, Thomas
- Abell, Thomas
- Absalon
- Abu al-Faraj
- Adalbert
- Ademar
- Adhémar
- Aetius
- Africanus, Sextus Julius
- Ailly, Pierre d'
- Albert
- Albinus
- Alcuin
- Aleandro, Girolamo
- Aleksy II
- Alexy II
- Allouez, Claude Jean
- Amiot, Joseph
- Amyot, Joseph
- Anchieta, José de
- André, Brother
- Antoine, Père
- Aquaviva, Claudio
- Arason, Jon
- Aresson, Jon
- Arias Montanus, Benedictus
- Arius
- Arnauld
- Arnold of Brescia
- Arns, Paulo Everisto
- Asser
- Axel
- Aymer of Valence
- Baius, Michael
- Bajus, Michael
- Ball, John
- Bar-Hebraeus, Gregorius
- Baraga, Frederic
- Barberini, Francesco
- Bardesanes
- Baronius, Caesar
- Bartholomaeus Anglicus
- Bartholomew de Glanville
- Bartholomew I
- Beaton, David
- Bembo, Pietro
- Benedict Biscop
- Berdyaev, Nicholas
- Berengar of Tours
- Bernard of Cluny
- Bessarion
- Bethune, David
- Biard, Pierre
- Bossuet, Jacques Bénigne
- Bourne, Francis
- Butler, Alban
- Cajetan
- Calmet, Augustin
- Campeggio, Lorenzo
- Capgrave, John
- Carpini, Giovanni de Piano
- Carranza de Miranda, Bartolomé de
- Carroll, John
- Casa Fuerte, Juan de Acuña, marqués de
- Cassian, John
- Catherine Tekakwitha
- Cauchon, Pierre
- Celano, Thomas of
- Cerinthus
- Challoner, Richard
- Charlevoix, Pierre François Xavier de
- Charron, Pierre
- Chaumonot, Joseph Marie
- Cheverus, Jean Louis Anne Madeleine Lefebvre de
- Choniates, Nicetas
- Cisneros, Francisco Jiménez de
- Clement of Alexandria
- Clément, Jacques
- Conrad of Marburg
- Consalvi, Ercole
- Cooke, Terence James
- Coughlin, Charles Edward
- Courtenay, William
- Cressy, Hugh Paulinus
- Cusa, Nicholas of
- Dablon, Claude
- Darboy, Georges
- David, John Baptist Mary
- De Smet, Pierre Jean
- Didon, Henri
- Didymus of Alexandria
- Dolan, Timothy Michael
- Dollier de Casson, François
- Duchesne, Louis Marie Olivier
- Duvergier de Hauranne, Jean
- Eck, Johann Maier von
- Eckhart, Meister
- Emser, Hieronymus
- England, John
- Eunomius
- Eusebius of Caesarea
- Eusebius of Nicomedia
- Eutyches
- Faber Stapulensis, Jacobus
- Faber, Frederick William
- Faber, Johannes
- Feckenham, John de
- Fénelon, François de Salignac de la Mothe
- Fenwick, Edward Dominic
- Filaret, Vasily Drosdov
- Flavian of Antioch
- Fléchier, Esprit
- Fleury, Claude
- Folquet de Marseille
- Fonseca, Juan Rodríguez de
- Foucauld, Charles, vicomte de
- Fulk of Neuilly
- Gallitzin, Demetrius Augustine
- Garnet, Henry
- Gasparri, Pietro
- Gavazzi, Alessandro
- Gerson, John
- Gibault, Pierre
- Gibbons, James
- Godfrey of Viterbo
- Gottschalk
- Gratian
- Gravier, Jacques
- Greeley, Andrew Moran
- Grégoire, Henri
- Groote, Gerard
- Grosseteste, Robert
- Guyon, Jeanne Marie Bouvier de la Motte
- Harnack, Adolf von
- Hecker, Isaac Thomas
- Heloise
- Hergenröther, Joseph Adam Gustav
- Hildebert of Lavardin
- Hilton, Walter
- Hincmar
- Hinsley, Arthur
- Hosius
- Hrabanus Maurus
- Huc, Évariste Régis
- Hügel, Friedrich, Baron von
- Hughes, John Joseph
- Hyacinthe, Père
- Ireland, John
- Jacobus da Varagine
- Jansen, Cornelis
- Joachim of Fiore
- John of Ephesus
- Juliana of Norwich
- Kateri Tekakwitha, Saint
- Kempe, Margery
- Kempis, Thomas à
- Kenrick, Francis Patrick
- Kirill
- Knox, Ronald
- Küng, Hans
- La Chaise, François d'Aix de
- Labat, Jean Baptiste
- Lacombe, Albert
- Lacordaire, Jean Baptiste Henri
- Lactantius, Lucius Caelius Firmianus
- Lainez, Diego
- Lalemant, Charles
- Lalemant, Jérôme
- Lamennais, Félicité Robert de
- Lamy, Jean Baptiste
- Lanfranc
- Langham, Simon
- Langton, Stephen
- Lathrop, Rose Hawthorne
- Laval, François Xavier de
- Laval-Montmorency, François Xavier de
- Lavigerie, Charles Martial Allemand
- Laynez, Diego
- Ledóchowski, Count Mieczisław
- Lefèvre d'Étaples, Jacques
- Loisy, Alfred Firmin
- Lombard, Peter
- Loyson, Charles
- Lucifer of Cagliari
- Mabillon, Jean
- Machebeuf, Joseph Projectus
- Manning, Henry Edward
- Marcellus of Ancyra
- Marcion
- Marculf
- Marianus Scotus
- Marianus Scotus
- Marie de l'Incarnation
- Marisco, Adam de
- Marsh, Adam
- Massillon, Jean Baptiste
- Matthew of Westminster
- Maury, Jean Siffrein
- Mazzuchelli, Samuel Charles
- McCloskey, John
- Mercier, Désiré Joseph
- Merry del Val, Rafael
- Merton, Thomas
- Migne, Jacques Paul
- Milic of Kremsier
- Minucius Felix, Marcus
- Molay, Jacques de
- Molina, Luis
- Molinos, Miguel de
- Murner, Thomas
- Newman, Saint John Henry
- Nicole, Pierre
- Nikon
- Nobili, Roberto de
- Notker Balbulus
- Notker Labeo
- Novatian
- O'Connor, John Joseph
- Ochino, Bernardino
- Orosius, Paulus
- Ozanam, Antoine Frédéric
- Páez, Pedro
- Pandulf
- Papias
- Parsons, Robert
- Paul of Samosata
- Pázmány, Peter
- Pecock, Reginald
- Persons, Robert
- Petavius, Dionysius
- Peter Lombard
- Peter the Hermit
- Philaret, Vasily Drosdov
- Photius
- Pire, Georges Henri
- Priscillian
- Prokopovich, Feofan
- Quesnel, Pasquier
- Rabanus Maurus Magnentius
- Rale, Sébastien
- Rampolla del Tindaro, Mariano
- Rancé, Armand Jean le Bouthillier de
- Rasles, Sébastien
- Richard of Saint Victor
- Robert Grosseteste
- Robert of Jumièges
- Rolle of Hampole, Richard
- Romero, Saint Óscar
- Rosmini-Serbati, Antonio
- Ruysbroeck, John
- Sabellius
- Saint-Cyran, Abbé de
- Saint-Vallier, Jean Baptiste de la Croix
- Salvian
- Sanders, Nicholas
- Sarpi, Paolo
- Savonarola, Girolamo
- Schillebeeckx, Edward Cornelius Florentius
- Scrope, Richard Le
- Servetus, Michael
- Sheen, Fulton John
- Siger de Brabant
- Smet, Pierre Jean de
- Sozomen
- Spellman, Francis Joseph
- Stepinac, Aloysius Victor
- Stigand
- Suárez, Francisco
- Sully, Maurice de
- Suso, Heinrich
- Taschereau, Elzéar Alexandre
- Tatian
- Tauler, Johannes
- Tekakwitha, Kateri
- Tertullian
- Tetzel, Johann
- Theodore of Mopsuestia
- Theodoret
- Thomas à Kempis
- Thomas of Celano
- Tonstall, Cuthbert
- Torquemada, Juan de
- Tunstall, Cuthbert
- Ulfilas
- Valdés, Juan de
- Vaughan, Herbert
- Veuster, Damien de
- Vieira, Antonio
- Vigilantius
- Vincent of Beauvais
- Voragine, Jacobus de
- Ward, Bernard Nicholas
- Ward, William George
- Wiseman, Nicholas Patrick Stephen
- Wulfila
- Wulfstan
- Zumárraga, Juan de
- Ælfric
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