Category:Articles incorporating a citation from the 1913 Catholic Encyclopedia with Wikisource reference
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- see also {{Cite CE1913}}
Pages in category "Articles incorporating a citation from the 1913 Catholic Encyclopedia with Wikisource reference"
The following 200 pages are in this category, out of approximately 7,390 total. This list may not reflect recent changes.
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- John O'Hagan
- Theodore O'Hara
- Patrick O'Hely
- Thomas O'Herlahy
- Ambrosio O'Higgins, 1st Marquess of Osorno
- Bernardo O'Higgins
- Aloys Karl Ohler
- Dermot O'Hurley
- Oikonomos
- Oil of Saints
- Oisterwijk
- Alonso de Ojeda
- Nicolaus Olahus
- Old Catholic Church
- Old Chapter
- Old German Baptist Brethren
- Old German Baptist Brethren, New Conference
- Old Prussians
- Old Saxony
- Old Style and New Style dates
- Old Testament
- Augustino Oldoini
- Arthur O'Leary (preacher)
- Oleiros, Portugal
- Zbigniew Oleśnicki (cardinal)
- Abbot Oliba
- Giovanni Paolo Oliva
- Pierre Olivaint
- George Oliver (historian)
- Peter John Olivi
- Léon Ollé-Laprune
- Michael O'Loghlen
- Roman Catholic Archdiocese of Olomouc
- Manuil Olshavskyi
- Stefan Olshavskyi
- Jean Baptiste Julien d'Omalius d'Halloy
- Flaithrí Ó Maolchonaire
- Omophorion
- Oneness Pentecostalism
- Oostakker
- Oostakker Basilica
- Gertrude van der Oosten
- Oppido Mamertina
- Optatus
- Oradea
- Oral Torah
- Orans
- Oratory (worship)
- Military Order of Aviz
- Military Order of Christ
- Order of Friars Minor
- Order of Monte Vergine
- Order of Montesa
- Order of Our Lady of Bethlehem
- Order of Pope Pius IX
- Order of precedence in the Catholic Church
- Order of Saint Lazarus
- Order of Santiago
- Order of St. Sylvester
- Order of the Blessed Sacrament
- Order of the Blessed Virgin Mary of Mercy
- Order of the Incarnate Word and Blessed Sacrament
- Orders, decorations, and medals of the Holy See
- Ordines Romani
- Myles O'Reilly (politician)
- Oremus
- Nicole Oresme
- Organic Articles
- Barnaba Oriani
- Oriental Orthodox Churches
- Oriental studies
- Orientius
- Oriflamme
- Origen
- Origenist crises
- Original sin
- Roman Catholic Archdiocese of Oristano
- Niccolò Orlandini
- Orléans
- Roman Catholic Diocese of Orléans
- Patrick O'Rorke
- Orphanage
- Simone da Orsenigo
- Latino Orsini
- Matteo Orsini
- Virginio Orsini (cardinal)
- Orsisius
- Giuseppe Agostino Orsi
- Abraham Ortelius
- Orthosias in Phoenicia
- Ortolano
- Ortwin
- Orval Abbey
- Orvieto and the popes
- Matthieu Ory
- Osbald of Northumbria
- Osbern of Canterbury
- Roman Catholic Diocese of Osimo and Cingoli
- Saint Osmund
- Osnabrück
- Prince-Bishopric of Osnabrück
- Francisco Meneses Osorio
- Oss
- L'Osservatore Romano
- Roman Catholic Diocese of Ossory
- Ostiarius
- Romanus Ostiarius
- Ostracine
- Ostracon
- Ostrogothic Papacy
- Philip O'Sullivan Beare
- Oswald of Northumbria
- Otfrid of Weissenburg
- Saint Othmar
- Otranto
- Otto III, Holy Roman Emperor
- Otto IV, Holy Roman Emperor
- Otto of Bamberg
- Otto of Passau
- Ottobeuren
- Ottobeuren Abbey
- Our Lady of Arcachon
- Our Lady of Good Counsel
- Our Lady of Most Holy Rosary Parish Church (Makinabang)
- Our Lady of Perpetual Help
- Our Lady, Star of the Sea
- Outline of the history of Western civilization
- Bernhard Heinrich Overberg
- Nicholas Owen (Jesuit)
- Jöns Bengtsson Oxenstierna
- Jacques Ozanam
P
- Pacandus
- Georg Michael Pachtler
- Pacific Ocean
- Pacificus
- Pacificus of San Severino
- Pacificus of Verona
- Padroado
- Francesco Mario Pagano
- Anthony Page (priest)
- Pagh
- Antoine Pagi
- François Pagi
- Santes Pagnino
- Palais-Royal
- Palencia
- Gabriele Paleotti
- Palestrina
- Frederick Apthorp Paley
- Pall (funeral)
- Palladius of Ratiaria
- Thomas Palasor
- Francesco Sforza Pallavicino
- Pallbearer
- Pallium
- Palm Sunday
- Richard Palmer (bishop)
- Domenico Palmieri
- Paltus
- Peter Paludanus
- Pambo
- Jacobus Pamelius
- Pammachius
- Pamphilus of Caesarea
- Roman Catholic Archdiocese of Panamá
- Pandulf Verraccio
- Panemotichus
- Masolino da Panicale
- Francesco Panigarola
- Arnold Pannartz and Konrad Sweynheim
- Panormitanus
- Saint Pantaleon
- Pantheism
- Onofrio Panvinio
- Gregorio Panzani
- Angelo Paoli
- Papacy in late antiquity
- Papal allocution
- Papal apocrisiarius
- Papal appointment
- Papal arbitration
- Papal ban of Freemasonry
- Papal brief
- Papal bull
- Papal conclave
- Papal deposing power
- Papal diplomatics
- Papal documents relating to Freemasonry
- Papal infallibility
- Papal majordomo
- Papal renunciation
- Papal rescripts
- Papal States
- Papal supremacy
- Papal tiara
- Paphnutius of Thebes
- Paphnutius the Ascetic
- Paphos
- Papias of Hierapolis
- Bernardus Papiensis