Frederick Oakeley

 O Antiphons

 Oates's Plot

 Oaths

 English Post-Reformation Oaths

 Archdiocese of Oaxaca

 Monastery of Obazine

 Obba

 Obedience

 Religious Obedience

 Obedientiaries

 Oblate Sisters of Providence

 Oblates of Mary Immaculate

 Oblates of Saint Francis de Sales

 Oblati

 Obligation

 Tighernach O'Braein

 Obregonians

 Obreption

 Terence Albert O'Brien

 David O'Bruadair

 Edmund Bailey O'Callaghan

 Torlogh O'Carolan

 Occasionalism

 Occasions of Sin

 Thomas Occleve

 Occult Art, Occultism

 Occurrence

 Vicariate Apostolic of Central Oceania

 Daniel O'Connell

 Charles O'Conor (1)

 Charles O'Conor (2)

 Octavarium Romanum

 Octave

 Gelasius O'Cullenan

 Eugene O'Curry

 Daniel O'Daly

 Donogh Mór O'Daly

 Carlo Odescalchi

 O Deus Ego Amo Te

 Cornelius O'Devany

 St. Odilia

 St. Odilo

 John Mary Odin

 Walter Odington

 St. Odo

 St. Odo (Oda)

 Odo

 Edmund O'Donnell

 John O'Donovan

 Bl. Odo of Cambrai

 Odo of Canterbury

 Odo of Cheriton

 Odo of Glanfeuil

 John O'Dugan

 Joseph O'Dwyer

 Johann Œcolampadius

 Episcopal œconomus

 Œcumenius

 John James Maximilian Oertel

 Oettingen

 Offa

 Offerings

 Offertory

 Divine Office

 Office of the Dead

 Maurice O'Fihely

 O Filii et Filiæ

 Diocese of Ogdensburg

 Marco D'Oggione

 Ven. John Ogilvie

 Diocese of Ogliastra

 Eugene O'Growney

 John O'Hagan

 Thomas O'Hagan

 John O'Hanlon

 Theodore O'Hara

 Patrick O'Hely

 Thomas O'Herlahy

 Ambrose Bernard O'Higgins

 Ohio

 Aloys Karl Ohler

 Dermod O'Hurley

 Maelbrighte O'Hussey

 Oil of Saints

 Ointment in Scripture

 Alonso de Ojeda

 Jean d'Okeghem

 Oklahoma

 St. Olaf Haraldson

 Nicolaus Oláh

 Olba

 Old Catholics

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 Ven. Edward Oldcorne

 Oldenburg

 Old Hall (St. Edmund's College)

 Hugh Oldham

 Augustino Oldoini

 Arthur O'Leary

 Olenus

 Zbigniew Olesnicki

 Jean-Jacques Olier

 Diocese of Olinda

 Oliva

 Gian Paolo Oliva

 Pierre Olivaint

 George Oliver

 Mount Olivet

 Olivetans

 Pierre Jean Olivi

 Olivier de la Marche

 Léon Ollé-Laprune

 Archdiocese of Olmütz

 Michael O'Loghlen

 St. Olympias

 Olympus

 Diocese of Omaha

 Ombus

 Kathleen O'Meara

 St. Omer

 Omission

 Omnipotence

 Hugh O'Neill

 Owen Roe O'Neill

 Onias

 Ontario

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 Ontology

 Shrine of Oostacker

 Ophir

 Diocese of Oporto

 Gilles-Marie Oppenordt

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 St. Optatus

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 Malachias O'Queely

 Oracle

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 Orans

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 Nicolas d'Orbellis

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 Archdiocese of Oregon City

 Bernard O'Reilly

 Edmund O'Reilly (1)

 Edmund O'Reilly (2)

 Hugh O'Reilly

 John Boyle O'Reilly

 Myles William Patrick O'Reilly

 Oremus

 Diocese of Orense

 Nicole Oresme

 Organ

 Diocese of Oria

 Barnaba Oriani

 Oriental Study and Research

 Orientation of Churches

 Orientius

 Oriflamme

 Origen and Origenism

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 Diocese of Orihuela

 St. Joseph Oriol

 Diocese of Oristano

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 Niccolò Orlandini

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 Barent Van Orley

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 Giuseppe Agostino Orsi

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 Abraham Ortelius

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 Matthieu Ory

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 Ven. Edward Osbaldeston

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 Osee

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 St. Osmund

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 Suburbicarian Diocese of Ostia and Velletri

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 Christian Ostraka

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 Philip O'Sullivan Beare

 St. Oswald (1)

 St. Oswald (2)

 St. Oswin

 Otfried of Weissenburg

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 Marcus Salvius Otho

 Archdiocese of Otranto

 Archdiocese of Ottawa

 University of Ottawa

 St. Otto

 Otto I, the Great

 Otto II

 Otto III

 Otto IV

 Ottobeuren

 Otto of Freising

 Otto of Passau

 Otto of St. Blasien

 St. Ouen

 Feast of Our Lady, Help of Christians

 Feast of Our Lady of Good Counsel

 Brothers of Our Lady of the Fields

 Feast of Our Lady of the Snow

 Friedrich Overbeck

 Bernhard Heinrich Overberg

 Diocese of Oviedo

 Nicholas Owen

 John Oxenford

 Henry Nutcombe Oxenham

 Oxford

 University of Oxford

 Oxford Movement (1833-1845)

 Oxyrynchus

 Antoine-Frédéric Ozanam

 Jacques Ozanam

 Ozias

Otto of Passau


All we know of him is in the preface of his work, in which he calls himself a member of the Franciscan Order, at one time lector of theology at Basle, and says that he finished his writing on 2 (1) Feb., 1386, dedicating it to all the "friends of God", both clerical and lay, male and female, and begs for their prayers. According to Sbaralea ("Suppl. Script. Franciscani ordinis", Rome, 1806, 571) he was a native of Flanders and belonged to the Franciscan province of Cologne. His book bears the title "Die vierundzwanzig alten oder der guldin Tron der minnenden seelen". He introduces the twenty-four ancients of Apoc., iv, 4, and makes them utter sentences of wisdom by which men can obtain the golden throne in eternal life. The sentences are taken from Holy Scripture, the Fathers, Scholastics, and from those heathen authors, "whom the Church does not condemn". He thus enumerates 104 "masters", among whom are also some of the mystics, as Hugo and Richard of St. Victor. He generally gives accurate quotation of his sources though he also draws from some not specified, e. g., St. Elizabeth of Schönau. He tries to remain on strictly Catholic ground, but sometimes loses himself in dogmatical intricacies and quibbles. To be plain and intelligible he frequently uses trivial expressions. He writes on the nature of God and of man, on their mutual relation, on the requisites for perfection: contrition, confession, and penance; on internal and external life, purity of motives, shunning idleness, love of God and of the neighbour, the necessity of faith, and the grace of God. He speaks of the Scriptures as the storehouse of Divine wisdom and urges the faithful to read them. In speaking of contemplative life he insists that none can reach it without spending time in the active service of God and man. The term "friends of God" he explains according to John, xv,15, and speaks of prayer, humility, obedience, spiritual life, virtues and vices, and shows Christ as the model of all virtues. The longest chapters, eleven and twelve, he devotes to the Holy Eucharist and to the Blessed Virgin. The last chapters treat of death and the future life. The number of manuscript copies of the book (about forty) bears evidence of the estimation in which it was held. It found its way to all "friends of God" in the south of Germany, along the Lower Rhine and in the Netherlands. It first appeared in print in 1470, probably by Pfister in Bamberg. A modernized edition, "Die Krone der Aeltesten", was made in 1835 at Landshut as a tenth volume of "Leitstern auf der Bahn des Heils".

Allg. deutsche Biogr., XXIV, 741, and XXV, 794; HURTER, Nomenclator, II (1906), 725.

FRANCIS MERSHMAN