| Date | Age | Event | Bishop | Title | Current Title |
| unknown | 25.4 | Ordained Priest | Jean Martin Adam, C.S.Sp. † | Priest of Congregation of the Holy Spirit | Vicar Apostolic Emeritus of Gabon, Gabon |
| 20.4 | Professed | Jules Bruguière (Brughiero), C.M. † | Member of Congregation of the Mission | Vicar Apostolic of Southwestern Chi-Li {Ce-Li Meridio-Occidentale}, China |
| 27.7 | Professed | Jules-Auguste Chatron, M.E.P. † | Priest of La Société des Missions Etrangères | Bishop of Osaka, Japan |
| 42.1 | Succeeded | Aloys Elloy, S.M. † | Vicar Apostolic of Central Oceania, Tonga |
| 28.1 | Professed | Henri Maquet, S.J. † | Priest of Society of Jesus | Vicar Apostolic of Southeastern Chi-Li {Ce-Li Meridio-Orientale}, China |
| 55.6 | Resigned | Giuseppe Moreschi † | Apostolic Administrator of Sansepolcro (Borgo San Sepolcro), Italy | Bishop of Città di Castello, Italy |
| 54.6 | Ordained Bishop | Giovanni Pierallini † | Bishop of Colle di Val d’Elsa, Italy | Archbishop of Siena, Italy |
| 26.6 | Ordained Priest | Críspulo Uzcátegui † | Priest | Archbishop of Caracas, Santiago de Venezuela |
| Jan | | Appointed | Niccola d’Orgemont, O.S.B. † | Abbot of Montecassino, Italy |
| 1 Jan | | Born | William Barry † | Middleton, Ireland | Archbishop of Hobart, Australia |
| 5 Jan | | Born | Luigi Mazzini † | Cogorno | Bishop Emeritus of Anagni, Italy |
| 6 Jan | 57.9 | Installed | Salvatore Giovanni Battista Bolognesi, C.O. † | Bishop of Belluno e Feltre, Italy |
| Born | Patrick Joseph James Keane † | Ballybunnion, Ireland | Bishop of Sacramento, California, USA |
| 8 Jan | | Born | Hormisdas Etienne Djibri † | Mossul | Archbishop of Kerkūk (Chaldean), Iraq |
| 9 Jan | 60.7 | Died | Jean-Baptiste Charles Gazailhan † | Bishop Emeritus of Vannes, France |
| 14 Jan | 53.0 | Ordained Bishop | Francesco di Nicola † | Titular Bishop of Alia | Bishop of Ischia, Italy |
| 58.2 | Ordained Bishop | Patrick Duggan † | Bishop of Clonfert, Ireland |
| 54.6 | Died | John Gray † | Vicar Apostolic Emeritus of Western District, Scotland, Great Britain |
| 43.1 | Ordained Bishop | Egidio Mauri, O.P. † | Bishop of Rieti, Italy | Cardinal, Archbishop of Ferrara, Italy |
| 62.2 | Died | John McGill † | Bishop of Richmond, Virginia, USA |
| 15 Jan | | Born | José Alves Correia da Silva † | São Pedro de Fins | Bishop of Leiria, Portugal |
| Born | Gabriel-Roch de Llobet † | Perpignan | Archbishop of Avignon (-Apt, Cavaillon, Carpentras, Orange, e Vaison), France |
| Born | Franjo Salis-Seewis † | Karlovac | Auxiliary Bishop of Zagreb, Croatia |
| 17 Jan | 75.2 | Died | Louis-Charles Buquet † | Auxiliary Bishop of Paris, France |
| 53.9 | Selected | Juraj Schopper † | Bishop of Rožňava, Slovakia |
| 18 Jan | | Born | Edward Komar † | Koprzywnica | Auxiliary Bishop Emeritus of Tarnów, Poland |
| 21 Jan | 66.0 | Died | László Bíró de Kezdi-Polany † | Bishop of Satu Mare {Szatmár}, Romania |
| 35.2 | Ordained Bishop | Tommaso Gomes de Almeida † | Bishop of Angola e Congo, Angola | Bishop of Guarda, Portugal |
| 22 Jan | | Born | Rocco Caliandro † | Ceglie Messapica | Bishop of Termoli, Italy |
| 66.3 | Died | Francesco Emilio Cugini † | Archbishop of Modena (e Nonantola), Italy |
| 23 Jan | | Born | Nicolas Dobrecić † | Antivari | Archbishop of Bar (Antivari), Montenegro |
| 26 Jan | | Born | Luigi Bondini, O.F.M. Conv. † | Roma, Italy | Titular Archbishop of Perge |
| 27 Jan | 67.5 | Died | Nicolò Frangipane † | Bishop of Concordia (Sagittaria), Italy |
| 28 Jan | 52.8 | Ordained Bishop | Giuseppe Buscarini † | Bishop of Borgo San Donnino, Italy |
| 31 Jan | | Born | Giuseppe Signore † | Monteroni | Bishop Emeritus of Telese o Cerreto Sannita, Italy |
| 4 Feb | 53.0 | Ordained Bishop | Hugh Conway † | Titular Bishop of Achantus | Bishop of Killala, Ireland |
| 22.3 | Ordained Priest | Francisco do Rêgo Maia † | Priest of Olinda, Brazil | Bishop Emeritus of Belém do Pará, Brazil |
| 63.1 | Ordained Bishop | Giovanni Maria Filia † | Bishop of Alghero, Italy |
| 56.6 | Ordained Bishop | Federico de Giacomo † | Bishop of Marsi, Italy |
| 38.8 | Ordained Bishop | Francis McCormack † | Titular Bishop of Claudiopolis in Isauria | Bishop Emeritus of Galway and Kilmacduagh, Ireland |
| 57.1 | Ordained Bishop | Charles-Marie-Denis-Anselme Nouvel de La Flèche, O.S.B. † | Bishop of Quimper [Cornouailles](-Léon), France |
| 63.1 | Ordained Bishop | James Ryan † | Titular Bishop of Echinus | Coadjutor Bishop of Killaloe, Ireland |
| 45.0 | Ordained Bishop | Paolo Giuseppe Maria Serci Serra † | Bishop of Ogliastra, Italy | Archbishop of Cagliari, Italy |
| 68.2 | Ordained Bishop | Antonio Soggiu † | Archbishop of Oristano, Italy |
| 44.0 | Ordained Bishop | Pierre-Jean-Joseph Soubiranne † | Titular Bishop of Sebaste in Cilicia | Bishop Emeritus of Belley, France |
| 7 Feb | 61.7 | Died | Martin John Spalding † | Archbishop of Baltimore, Maryland, USA |
| 10 Feb | 57.4 | Ordained Bishop | Alfred Duquesnay † | Bishop of Limoges, France | Archbishop of Cambrai, France |
| Born | Ángel María Pérez y Cecilia, O.C.D. † | Burgos, Spain | Archbishop Emeritus of Verapoly, India |
| 11 Feb | 42.5 | Ordained Bishop | Eugenio Cano † | Bishop of Bosa, Italy | Bishop Emeritus |
| Ordained Bishop | Nomatallah Dahdah † | Archbishop of Damas (Maronite), Syria |
| 38.3 | Appointed | Joseph Debs † | Archbishop of Beirut {Bairut} (Maronite), Lebanon |
| 38.3 | Ordained Bishop | Joseph Debs † | Archbishop of Beirut {Bairut} (Maronite), Lebanon |
| Born | Manuel Raimundo de Melo † | Capelinha | Bishop Emeritus of Caetité, Baia, Brazil |
| Ordained Bishop | Joseph Foraifer † | Titular Bishop of Laodicea in Syria per i Maroniti |
| 52.9 | Ordained Bishop | François-Marie-Benjamin Richard de la Vergne † | Bishop of Belley, France | Cardinal, Archbishop of Paris, France |
| 43.6 | Ordained Bishop | William Benedict Scarisbrick, O.S.B. † | Bishop of Port-Louis, Mauritius | Bishop Emeritus |
| 12 Feb | | Born | Thomas Shine † | Tipperary, Ireland | Bishop of Middlesbrough, England, Great Britain |
| 13 Feb | 64.7 | Selected | Ivan Zaffron (Zoffran) † | Bishop of Dubrovnik (Ragusa), Croatia |
| 15 Feb | 33.9 | Appointed | Isidore-François-Joseph Colombert, M.E.P. † | Coadjutor Vicar Apostolic of Western Cochin {Cocincina Occidentale}, Viet Nam | Vicar Apostolic |
| 33.9 | Appointed | Isidore-François-Joseph Colombert, M.E.P. † | Titular Bishop of Samosata | Vicar Apostolic of Western Cochin {Cocincina Occidentale}, Viet Nam |
| 34.9 | Appointed | Joseph Gregory Dwenger, C.Pp.S. † | Bishop of Fort Wayne, Indiana, USA |
| 47.4 | Appointed | Richard Gilmour † | Bishop of Cleveland, Ohio, USA |
| 53.0 | Installed | François-Marie-Benjamin Richard de la Vergne † | Bishop of Belley, France | Cardinal, Archbishop of Paris, France |
| 41.0 | Appointed | Patrick John Ryan † | Coadjutor Archbishop of Saint Louis, Missouri, USA | Archbishop of Philadelphia, Pennsylvania, USA |
| 41.0 | Appointed | Patrick John Ryan † | Titular Archbishop of Tricomia | Archbishop of Philadelphia, Pennsylvania, USA |
| 54.7 | Appointed | Edgar Philip Prindle Wadhams † | Bishop of Ogdensburg, New York, USA |
| 16 Feb | | Born | Francis Gilfillan † | Aghavas (Aughavas), Ireland | Bishop of Saint Joseph, Missouri, USA |
| 44.8 | Appointed | Thomas Francis Hendricken † | Bishop of Providence, Rhode Island, USA |
| 18 Feb | 55.1 | Ordained Bishop | Filippo Campus Chessa † | Bishop of Ampurias e Tempio, Italy |
| 49.0 | Ordained Bishop | Serafino Corrias † | Bishop of Bisarchio o Bisarcio (Ozieri), Italy |
| 59.9 | Ordained Bishop | Zaccaria Fanciulli, O.F.M. Cap. † | Titular Bishop of Maronea |
| 77.4 | Died | William Placid Morris, O.S.B. † | Vicar Apostolic Emeritus of Cape of Good Hope, Western District {Capo di Buona Speranza, Distretto Occidentale}, South Africa |
| 19 Feb | 63.0 | Died | Domenico Giuseppe de Sousa Magelhaes † | Auxiliary Bishop of Lisboa {Lisbon}, Portugal |
| 88.1 | Died | José Sebastian Goyeneche y Barreda † | Archbishop of Lima, Peru |
| 22 Feb | | Born | Ismael Perdomo Borrero † | El-Gigante | Archbishop of Bogotá, Colombia |
| 53.6 | Appointed | Piotr Pawel Wierzbowski † | Bishop of Sejny o Sejna o Augustów, Poland |
| 23 Feb | 59.4 | Appointed | Luigi Biscioni (Bisconi) Amadori † | Bishop of Sansepolcro (Borgo San Sepolcro), Italy | Bishop Emeritus |
| 66.5 | Appointed | Ludwik Bartłomiej Brynk † | Apostolic Administrator of Lutsk, Zhytomyr, and Kamyanets-Podilskyi (Łuck, Zytomierz, and Kamienec), Ukraine |
| 66.5 | Appointed | Ludwik Bartłomiej Brynk † | Titular Bishop of Amathus in Palaestina | Apostolic Administrator of Lutsk, Zhytomyr, and Kamyanets-Podilskyi (Łuck, Zytomierz, and Kamienec), Ukraine |
| 46.1 | Appointed | Giuseppe Maria Cione † | Bishop of Policastro, Italy |
| 64.1 | Appointed | Geremia Cosenza, O.F.M. † | Bishop of Foggia, Italy |
| 51.3 | Appointed | Giuseppe Maria Cotellessa † | Bishop of Lucera, Italy |
| 51.0 | Appointed | Aleksander Kazimierz Gintowt-Dziewaltowski † | Auxiliary Bishop of Płock, Poland | Archbishop of Mohilev, Belarus |
| 51.0 | Appointed | Aleksander Kazimierz Gintowt-Dziewaltowski † | Titular Bishop of Helenopolis in Bithynia | Archbishop of Mohilev, Belarus |
| 55.6 | Appointed | Paolo dei Conti Fabiani † | Bishop of Assisi, Italy |
| 74.7 | Appointed | Anton Fiałkowski † | Archbishop of Mohilev, Belarus |
| 58.0 | Appointed | Raffaele Gagliardi † | Bishop of Sessa Aurunca, Italy |
| 49.1 | Appointed | Federico Maria Galdi † | Bishop of Andria, Italy |
| 58.0 | Appointed | Saverio Gerbino † | Bishop of Piazza Armerina, Italy | Bishop of Caltagirone, Italy |
| 45.0 | Appointed | Giuseppe Guarino † | Archbishop of Siracusa, Italy | Cardinal, Archbishop of Messina, Italy |
| 58.6 | Appointed | Benedetto Lavecchia Guarnieri, O.F.M. † | Bishop of Noto, Italy | Archbishop of Siracusa, Italy |
| 69.4 | Appointed | Antonio Izzo † | Bishop of Isernia e Venafro, Italy |
| 48.2 | Appointed | Tomasz Teofil Kuliński † | Titular Bishop of Satala in Armenia | Bishop of Kielce, Poland |
| 48.3 | Appointed | Giovanni Battista Laparelli Pitti † | Bishop of Cortona, Italy |
| 43.1 | Appointed | Giacinto Magliuolo † | Bishop of Acerra, Italy |
| 68.2 | Appointed | Tobia Masacci † | Bishop of Sarsina, Italy |
| 47.7 | Appointed | Federico Mascaretti, O. Carm. † | Bishop of Susa, Italy | Bishop Emeritus |
| 52.1 | Appointed | Henri Monnier † | Auxiliary Bishop of Cambrai, France |
| 52.1 | Appointed | Henri Monnier † | Titular Bishop of Lydda | Auxiliary Bishop of Cambrai, France |
| 47.7 | Appointed | Antonio Morana † | Bishop of Caltagirone, Italy |
| 49.4 | Appointed | Francesco Maria Petrarca † | Archbishop of Lanciano (e Ortona), Italy |
| 60.1 | Appointed | Raffaele Pucci-Sisti † | Bishop of Montalcino, Italy |
| 56.2 | Appointed | Salvatore Silvestris, C.SS.R. † | Bishop of Conversano, Italy |
| 57.9 | Appointed | Domenico Turano † | Bishop of Agrigento (Girgenti), Italy |
| 53.4 | Appointed | Domenico Maria Villa † | Bishop of Parma, Italy |
| 45.7 | Appointed | Francesco Saverio Zottman † | Bishop of Tiraspol, Moldova | Bishop Emeritus |
| 25 Feb | 51.3 | Ordained Bishop | Giuseppe Maria Cotellessa † | Bishop of Lucera, Italy |
| 56.2 | Ordained Bishop | Salvatore Silvestris, C.SS.R. † | Bishop of Conversano, Italy |
| 26 Feb | 67.0 | Died | Giuseppe Novella, O.F.M. † | Coadjutor Vicar Apostolic Emeritus of Houkouang, China |
| 27 Feb | 61.7 | Selected | François-André-Xavier de Gaffory † | Bishop of Ajaccio, France |
| 1 Mar | 57.2 | Died | Laurence Bonaventure Sheil, O.F.M. † | Bishop of Adelaide, Australia |
| 3 Mar | 64.2 | Ordained Bishop | Geremia Cosenza, O.F.M. † | Bishop of Foggia, Italy |
| 69.4 | Ordained Bishop | Antonio Izzo † | Bishop of Isernia e Venafro, Italy |
| 48.4 | Ordained Bishop | Giovanni Battista Laparelli Pitti † | Bishop of Cortona, Italy |
| 43.1 | Ordained Bishop | Giacinto Magliuolo † | Bishop of Acerra, Italy |
| 5 Mar | | Born | Albert Thomas Daeger, O.F.M. † | Saint Ann, IN | Archbishop of Santa Fe, New Mexico, USA |
| 41.2 | Ordained Bishop | Patrick Francis Moran † | Titular Bishop of Olba | Cardinal, Archbishop of Sydney, Australia |
| 6 Mar | | Born | Antoine-Pierre-Jean Fourquet, M.E.P. † | Eus, France | Archbishop Emeritus of Guangzhou [Canton], China |
| 8 Mar | | Born | Juan Villar y Sanz † | Sisamón | Bishop of Lérida, Spain |
| 9 Mar | 68.9 | Died | Antonio Salomone † | Archbishop of Salerno (-Acerno), Italy |
| 10 Mar | 59.4 | Ordained Bishop | Luigi Biscioni (Bisconi) Amadori † | Bishop of Sansepolcro (Borgo San Sepolcro), Italy | Bishop Emeritus |
| 55.7 | Ordained Bishop | Paolo dei Conti Fabiani † | Bishop of Assisi, Italy |
| 58.0 | Ordained Bishop | Saverio Gerbino † | Bishop of Piazza Armerina, Italy | Bishop of Caltagirone, Italy |
| Born | Fabiano Francesco Landi, O.F.M. † | Radda, Italy | Vicar Apostolic of Northwestern Hupeh {Hu-Pè Occiduo-Settentrionale}, China |
| 11 Mar | 23.0 | Ordained Priest | Anton Johann Zerr † | Priest | Bishop Emeritus of Tiraspol, Moldova |
| 13 Mar | 26.8 | Ordained Priest | Mathurin Picarda, C.S.Sp. † | Priest of Congregation of the Holy Spirit | Vicar Apostolic of Senegambia, Senegal |
| 15 Mar | | Born | Athanase Melèce Onésime Sawoya, B.C. † | Qu'Abrim | Archbishop of Beirut and Jbeil {Bairut e Gibail} (Melkite Greek), Lebanon |
| 16 Mar | 23.1 | Ordained Priest | Anthony Gaughren, O.M.I. † | Priest of Oblates of Mary Immaculate | Vicar Apostolic of Orange River, South Africa |
| 22.9 | Ordained Priest | Mattia Vicario † | Priest of Vercelli, Italy | Bishop of Novara, Italy |
| 17 Mar | 46.8 | Installed | Domenico Agostini † | Bishop of Chioggia, Italy | Cardinal, Patriarch of Venezia {Venice}, Italy |
| 27.6 | Ordained Bishop | Vital Maria Gonçalves de Oliveira, O.F.M. Cap. † | Bishop of Olinda, Brazil |
| 45.0 | Ordained Bishop | Giuseppe Guarino † | Archbishop of Siracusa, Italy | Cardinal, Archbishop of Messina, Italy |
| 58.7 | Ordained Bishop | Benedetto Lavecchia Guarnieri, O.F.M. † | Bishop of Noto, Italy | Archbishop of Siracusa, Italy |
| 64.1 | Died | Romualdo Jimeno Ballesteros, O.P. † | Bishop of Cebu, Philippines |
| 47.8 | Ordained Bishop | Antonio Morana † | Bishop of Caltagirone, Italy |
| 58.0 | Ordained Bishop | Domenico Turano † | Bishop of Agrigento (Girgenti), Italy |
| 19 Mar | | Born | Elie Chedid (Scedid) † | Adeh al-Batrun | Titular Archbishop of Cyrrhus per i Maroniti |
| 20 Mar | 47.7 | Selected | Victor-Jean-François-Paulin Delannoy † | Bishop of Saint-Denis-de-La Réunion | Bishop of Aire et Dax, France |
| 53.0 | Selected | Joseph-Jean-Louis Robert † | Bishop of Constantine (-Hippone), Algeria | Bishop of Marseille, France |
| 21 Mar | | Born | Charles Challiol † | Albi | Bishop of Rodez (-Vabres), France |
| 62.0 | Died | Giacomo Giuseppe Jans † | Bishop of Aosta, Italy |
| 26 Mar | | Born | Joseph Félix Blanc, S.M. † | Toulon, France | Vicar Apostolic Emeritus of Tonga Islands {Isole Tonga}, Pacific (Oceania) |
| 24.3 | Ordained Priest | Carlo Marozio † | Priest | Bishop of Susa, Italy |
| 1 Apr | | Born | Conrad Gröber † | Messkirch | Archbishop of Freiburg im Breisgau, Germany |
| 2 Apr | 79.8 | Died | Juan Francisco Escalante y Moreno † | Auxiliary Bishop of Sonora, México |
| Born | Adolfo Pagani † | Monza | Bishop of Como, Italy |
| 4 Apr | | Born | Alois Scheiwiler † | Gossau | Bishop of Sankt Gallen, Switzerland |
| 6 Apr | 66.3 | Died | François-Napoleon Libois, M.E.P. † | Prefect Emeritus of Kouangtong, China |
| 7 Apr | 23.8 | Ordained Priest | Ignacio Ibáñez, O.P. † | Priest of Order of Friars Preachers | Vicar Apostolic of Amoy, China |
| 12 Apr | 23.6 | Ordained Priest | Filippo Camassei † | Priest of Roma {Rome}, Italy | Cardinal, Patriarch Emeritus of Jerusalem {Gerusalemme}, Palestine |
| 14 Apr | 35.0 | Ordained Bishop | Joseph Gregory Dwenger, C.Pp.S. † | Bishop of Fort Wayne, Indiana, USA |
| 47.5 | Ordained Bishop | Richard Gilmour † | Bishop of Cleveland, Ohio, USA |
| 48.5 | Ordained Bishop | Arnold Ipolyi-Stummer † | Bishop of Banská Bystrica, Slovakia | Bishop of Oradea Mare {Gran Varadino, Nagyvárad}, Romania |
| 47.8 | Ordained Bishop | Federico Mascaretti, O. Carm. † | Bishop of Susa, Italy | Bishop Emeritus |
| 52.6 | Ordained Bishop | Diego Marongiu Del Rio † | Archbishop of Sassari, Italy |
| Born | Louis-Nestor Renault, M.E.P. † | Tramont-Emy, France | Vicar Apostolic of Suifu [Yibin], China |
| 41.2 | Ordained Bishop | Patrick John Ryan † | Titular Archbishop of Tricomia | Archbishop of Philadelphia, Pennsylvania, USA |
| 15 Apr | | Born | Joseph-Fructueux Bourgain, M.E.P. † | Le Portel, France | Vicar Apostolic of Ningyüanfu, China |
| 18 Apr | 40.8 | Converted | Alfred Allen Paul Curtis † | Bishop Emeritus of Wilmington, Delaware, USA |
| 21 Apr | 23.6 | Ordained Priest | Andrea Elia Celebian † | Priest | Bishop of the Tribunal of Diarbekir (Amida) (Armenian) |
| 44.0 | Ordained Bishop | Francis McNeirny † | Titular Bishop of Rhesaina | Bishop of Albany, New York, USA |
| 22 Apr | 76.9 | Died | Mellon de Jolly † | Archbishop Emeritus of Sens (-Auxerre), France |
| 23 Apr | | Born | Kevork (Georges) Kortikian (Kurdighian) † | Alep | Archbishop of Alep [Beroea, Halab] (Armenian), Syria |
| 25 Apr | | Born | Francesco Canessa † | Teglia, Italy | Titular Bishop of Sarepta |
| 58.4 | Died | Joseph Feßler (Fessler) † | Bishop of Sankt Pölten, Austria |
| 28 Apr | 45.0 | Ordained Bishop | Thomas Francis Hendricken † | Bishop of Providence, Rhode Island, USA |
| 56.8 | Ordained Bishop | João Pereira Bothelho de Amaral y Pimentel † | Bishop of Angra, Portugal |
| 30 Apr | | Born | Luigi Barlassina † | Torino | Patriarch of Jerusalem {Gerusalemme}, Palestine |