| Date | Age | Event | Bishop | Title | Current Title |
| unknown | 24.9 | Ordained Priest | Philippe-Jacques Abraham, O.A.O.C. † | Priest | Bishop of Gazireh (Gezira) (Chaldean), Turkey |
| 73.9 | Died | Juan Hilario Bosset (Boset) † | Bishop of Mérida, Venezuela |
| 44.7 | Appointed | Ambroise Emonet, C.S.Sp. † | Prefect of French Guiana-Cayenne, Antilles | Superior General of Congregation of the Holy Spirit |
| 18.1 | Professed | Laurent Guillon, M.E.P. † | Member of La Société des Missions Etrangères | Vicar Apostolic of Southern Manchuria {Manciuria Meridionale}, China |
| 50.8 | Resigned | Joseph Guyodo, C.S.Sp. † | Pro-Prefect of French Guiana-Cayenne, Antilles | Prefect Emeritus |
| 61.3 | Died | Jerome-Paul Hindi † | Bishop of Gazireh (Gezira) (Chaldean), Turkey |
| 24.0 | Ordained Priest | Sevère-Samuel Lahdo † | Priest | |
| 24.1 | Ordained Priest | Valeriano Menéndez y Conde † | Priest | Archbishop of Valencia, Spain |
| 21.8 | Ordained Priest | Giovanni Maria Pellizzari † | Priest of Treviso, Italy | Bishop of Piacenza, Italy |
| 24.6 | Ordained Priest | Manuel Felipe Rodríguez Delgado † | Priest | Bishop of Guayana, Venezuela |
| 55.7 | Resigned | Pierre Rougeyron, S.M. † | Vicar Apostolic of Nouvelle-Calédonie (New Caledonia), Pacific (Oceania) | Vicar Apostolic Emeritus |
| 23.2 | Ordained Priest | Epifan Šanov (Scianow) † | Priest | Vicar Apostolic Emeritus of Macedonia (Thessalonika) (Bulgarian) |
| 1 Jan | 67.6 | Ordained Bishop | Giuseppe Caiazzo, O.E.S.A. † | Archbishop of Otranto, Italy |
| 41.6 | Ordained Bishop | Giuseppe Morteo, O.F.M. Cap. † | Bishop of Massa Marittima, Italy |
| 58.7 | Ordained Bishop | Antonio Sena † | Bishop of Ascoli Satriano e Cerignola, Italy |
| 3 Jan | | Born | Joseph Ambühl † | | Bishop of Basel e Lugano, Switzerland |
| 5 Jan | 38.6 | Ordained Bishop | Charles Arsène Bourdon, M.E.P. † | Titular Bishop of Dardanus | Vicar Apostolic Emeritus of Northern Burma {Birmania Settentrionale}, Myanmar |
| 25.2 | Ordained Priest | Konstantyn Chekhovych (Czechowicz) † | Priest of Przemyśl, Sambor, et Sanok (Ukrainian), Poland | Bishop |
| 48.2 | Ordained Bishop | Domenico Mignanti † | Bishop of Civita Castellana, Orte e Gallese, Italy |
| 6 Jan | | Born | Antonio Stoppani, F.S.C.J. † | | Vicar Apostolic Emeritus of Bahr el-Ghazal, Sudan |
| 10 Jan | 34.9 | Selected | Charles-François Turinaz † | Bishop of Tarentaise, France | Bishop of Nancy (-Toul), France |
| 11 Jan | | Born | Pasquale Mores † | | Bishop Emeritus of Nusco, Italy |
| 13 Jan | | Born | Vasile (Basile) Suciu † | | Archbishop of Făgăraş şi Alba Iulia (Romanian), Romania |
| 14 Jan | | Born | Thomas Kurialachery † | | Bishop of Changanacherry (Syro-Malabar), India |
| 19 Jan | 38.3 | Ordained Bishop | Gaetano Camillo Guindani (Guindari) † | Bishop of Borgo San Donnino, Italy | Bishop of Bergamo, Italy |
| 25 Jan | | Born | Benedito Paulo Alves de Souza † | | Bishop Emeritus of Espírito Santo, Brazil |
| 26 Jan | 45.3 | Ordained Bishop | Mihály Pável † | Bishop of Gherla, Armenopoli, Szamos-Ujvár (Romanian), Romania | Bishop of Oradea Mare {Gran Varadino} (Romanian), Romania |
| 27 Jan | | Born | Auguste-Julien-Pierre Fortineau, C.S.Sp. † | | Vicar Apostolic Emeritus of Diégo-Suarez, Madagascar |
| 28 Jan | | Born | Patrick Casey † | | Bishop of Ross, Ireland |
| 30 Jan | | Born | Antonio Scarante † | | Bishop of Faenza, Italy |
| Feb | 46.5 | Selected | Federico León Aneiros (Aneyros) † | Archbishop of Buenos Aires, Argentina |
| 2 Feb | 44.2 | Ordained Bishop | Edmond Hyacinthe Theodore Joseph Dumont † | Bishop of Tournai {Doornik}, Belgium | Bishop Emeritus |
| Born | Thomas Henshaw † | | Bishop of Salford, England, Great Britain |
| 36.4 | Final Vows | Roberto Maria del Pozo y Martin (García Del Pozo), S.J. † | Priest of Society of Jesus | Bishop of Guayaquil, Ecuador |
| 3 Feb | | Born | Juozapas Kukta † | | Bishop of Kaišiadorys, Lithuania |
| 8 Feb | | Born | Filippo Perlo, I.M.C. † | | Vicar Apostolic Emeritus of Kenya, Kenya |
| 9 Feb | 50.4 | Ordained Bishop | Matthäus Joseph Binder † | Bishop of Sankt Pölten, Austria |
| 10 Feb | 67.7 | Died | Luigi Vetta † | Bishop of Nardò, Italy |
| 13 Feb | | Born | Eugenio Artaraz Emaldi, O.P. † | | Vicar Apostolic of Bac Ninh, Viet Nam |
| 14 Feb | 33.5 | Appointed | Michael Augustine Corrigan † | Bishop of Newark, New Jersey, USA | Archbishop of New York, New York, USA |
| 35.6 | Appointed | William Hickley Gross, C.Ss.R. † | Bishop of Savannah, Georgia, USA | Archbishop of Oregon City, Oregon, USA |
| 80.0 | Died | Giovanni Pietro Losana † | Bishop of Biella, Italy |
| Born | Giuseppe Petrelli † | | Apostolic Nuncio |
| Born | Pierre-Macarie Saba † | | Archbishop of Alep [Beroea, Halab] (Melkite Greek), Syria |
| 15 Feb | 45.2 | Installed | José Maríe del Refugio Guerra y Alva † | Bishop of Zacatecas, México |
| 16 Feb | 57.1 | Resigned | Felicissimo Coccino (Cocchino), O.F.M. Cap. † | Coadjutor Vicar Apostolic of Galla, Ethiopia | Coadjutor Vicar Apostolic Emeritus |
| 58.6 | Ordained Bishop | Léopold-René Leséleuc de Kerouara † | Bishop of Autun (-Châlon-sur-Saône-Mâcon), France |
| 17 Feb | | Born | Henryk Ignacy Przeździecki † | | Bishop of Siedlce, Poland |
| Born | Joseph Shiel † | | Bishop of Rockhampton, Australia |
| 22 Feb | | Born | Thomas Charles O’Reilly † | | Bishop of Scranton, Pennsylvania, USA |
| Born | Pedro María Rodríguez Andrade † | | Bishop Emeritus of Ibagué, Colombia |
| 23 Feb | 58.6 | Installed | Léopold-René Leséleuc de Kerouara † | Bishop of Autun (-Châlon-sur-Saône-Mâcon), France |
| Born | Noè Giuseppe Tacconi, P.I.M.E. † | | Vicar Apostolic of Kaifeng [Kaifeng] (Kaifengfu), China |
| 27 Feb | 85.4 | Died | Joaquim Pereira Ferraz, O.S.B. † | Bishop of Leiria, Portugal |
| 28 Feb | 69.0 | Died | Georges-Claude-Louis-Pie Chalandon † | Archbishop of Aix (-Arles-Embrun), France |
| Born | Joseph-Antoine-Augustin Giustiniani, O.F.M. † | | Auxiliary Bishop of Ajaccio, France |
| Born | Michele Izzi † | | Bishop of Alatri, Italy |
| 48.7 | Appointed | Bernard O’Reilly † | Bishop of Liverpool, England, Great Britain |
| 39.1 | Appointed | Roger William Bede Vaughan, O.S.B. † | Coadjutor Archbishop of Sydney, Australia | Archbishop |
| 39.1 | Appointed | Roger William Bede Vaughan, O.S.B. † | Titular Archbishop of Nazianzus | Archbishop of Sydney, Australia |
| 1 Mar | 75.0 | Retired | Jean-Antoine-Marie Foulquier † | Bishop of Mende, France | Bishop Emeritus |
| Born | Gaudenzio Manuelli † | | Archbishop of L’Aquila, Italy |
| 2 Mar | 57.8 | Ordained Bishop | Pietro Giocondo Salvaj di Govone † | Bishop of Alessandria (della Paglia), Italy |
| 3 Mar | 67.5 | Resigned | Antoine-Charles Cousseau † | Bishop of Angoulême, France | Bishop Emeritus |
| 72.0 | Resigned | François Gros † | Bishop of Tarentaise, France | Bishop Emeritus |
| 6 Mar | 58.9 | Appointed | Istvan Pribék de Ville † | Titular Bishop of Loryma | Auxiliary Bishop of Veszprém, Hungary |
| 8 Mar | 24.6 | Ordained Priest | Michel Marc Hudrisier, O.F.M. Cap. † | Priest of Order of Friars Minor Capuchin | Bishop of Port Victoria o Seychelles |
| 23.2 | Ordained Priest | Georges-Jean-Damascène Lachavanne, O.F.M. Cap. † | Priest of Order of Friars Minor Capuchin | Bishop of Port Victoria o Seychelles |
| 9 Mar | 46.4 | Ordained Bishop | Lino Deodato Rodrigues de Carvalho † | Bishop of São Paulo, Brazil |
| 10 Mar | | Born | Edouard van Goethem, M.S.C. † | | Vicar Apostolic Emeritus of Coquilhatville, Congo (Dem. Rep.) |
| 11 Mar | | Born | Eugen Remigius Schwarz, O.F.M. Cap. † | | Prefect of Bettiah, India |
| 33.2 | Appointed | Charles-Jean Seghers † | Bishop of Vancouver Island, USA |
| 14 Mar | | Born | Johannes Dominicus Josephus Aengenent † | | Bishop of Haarlem, Netherlands |
| Born | Giovanni Iacono † | | Bishop Emeritus of Caltanissetta, Italy |
| 15 Mar | | Born | Alberto Costa † | | Bishop of Lecce, Italy |
| 17 Mar | 48.9 | Selected | Lörinc (Vavrinec) Schlauch † | Bishop of Satu Mare {Szatmár}, Romania | Cardinal, Bishop of Oradea Mare {Gran Varadino, Nagyvárad}, Romania |
| 19 Mar | 48.7 | Ordained Bishop | Bernard O’Reilly † | Bishop of Liverpool, England, Great Britain |
| 39.1 | Ordained Bishop | Roger William Bede Vaughan, O.S.B. † | Titular Archbishop of Nazianzus | Archbishop of Sydney, Australia |
| 21 Mar | 55.2 | Appointed | Indalecio Barreto † | Auxiliary Bishop of Santafé en Nueva Granada, Colombia | Bishop of Nueva Pamplona, Colombia |
| 55.2 | Appointed | Indalecio Barreto † | Titular Bishop of Dora | Bishop of Nueva Pamplona, Colombia |
| 63.0 | Appointed | François-Alexandre Roullet de la Bouillerie † | Titular Archbishop of Perge | Coadjutor Archbishop of Bordeaux, France |
| 63.0 | Confirmed | François-Alexandre Roullet de la Bouillerie † | Coadjutor Archbishop of Bordeaux, France |
| 38.0 | Appointed | Vincenzo Bracco † | Patriarch of Jerusalem {Gerusalemme}, Palestine |
| 46.8 | Appointed | Louis-Taurin Cahagne, O.F.M. Cap. † | Coadjutor Vicar Apostolic of Galla, Ethiopia | Vicar Apostolic |
| 46.8 | Appointed | Louis-Taurin Cahagne, O.F.M. Cap. † | Titular Bishop of Adramyttium | Vicar Apostolic of Galla, Ethiopia |
| 49.4 | Appointed | Aniceto Ferrante, C.O. † | Bishop of Gallipoli, Italy | Bishop Emeritus |
| 49.8 | Appointed | Joaquín Guillermo González Gutiérrez † | Bishop of Antioquía, Colombia | Bishop Emeritus |
| 49.2 | Confirmed | François-Albert Leuillieux † | Bishop of Carcassonne, France | Archbishop of Chambéry, France |
| 68.4 | Appointed | Francisco de Asis Orueta y Castrillón, C.O. † | Archbishop of Lima, Peru |
| 56.2 | Appointed | Mariano Positano † | Bishop of Castellaneta, Italy |
| 44.6 | Confirmed | Joseph-Frédéric Saivet † | Bishop of Mende, France | Bishop of Perpignan-Elne, France |
| 52.7 | Confirmed | Alexandre-Léopold Sebaux † | Bishop of Angoulême, France |
| 41.7 | Appointed | Francesco Tavani † | Auxiliary Bishop of Sabina (-Farfa), Italy |
| 41.7 | Appointed | Francesco Tavani † | Titular Bishop of Myndus | Auxiliary Bishop of Sabina (-Farfa), Italy |
| 35.1 | Confirmed | Charles-François Turinaz † | Bishop of Tarentaise, France | Bishop of Nancy (-Toul), France |
| 50.9 | Appointed | Salvatore Luigi Zola, C.R.L. † | Bishop of Ugento, Italy | Bishop of Lecce, Italy |
| 23 Mar | 49.5 | Ordained Bishop | Aniceto Ferrante, C.O. † | Bishop of Gallipoli, Italy | Bishop Emeritus |
| 14.2 | Entered | Luis Javier Muñoz y Capurón, S.J. † | Member of Society of Jesus | Archbishop of Guatemala |
| 56.3 | Ordained Bishop | Mariano Positano † | Bishop of Castellaneta, Italy |
| 41.7 | Ordained Bishop | Francesco Tavani † | Titular Bishop of Myndus | Auxiliary Bishop of Sabina (-Farfa), Italy |
| 24 Mar | | Born | Giuseppe Marcozzi † | | Bishop of Calvi e Teano, Italy |
| 27.3 | Professed | Jérôme-Josse Van Aertselaer, C.I.C.M. † | Priest of Congregation of the Immaculate Heart of Mary | Vicar Apostolic of Tchagar, China |
| 25 Mar | 59.0 | Ordained Bishop | Istvan Pribék de Ville † | Titular Bishop of Loryma | Auxiliary Bishop of Veszprém, Hungary |
| 26 Mar | | Born | Oleksiy Bazyuk † | | Apostolic Administrator Emeritus of Bosnia-Hercegovina (Ukrainian) |
| 27 Mar | | Born | Ljudevit Lajčo Budanović † | | Apostolic Administrator of Bačka (Bács) Jugoslavenska, Serbia |
| 29 Mar | 52.0 | Selected | François-Benjamin-Joseph Blanger † | Bishop of Guadeloupe et Basse-Terre, Antilles | Bishop of Limoges, France |
| 57.0 | Selected | Théodore-Augustin Forcade, M.E.P. † | Archbishop of Aix (-Arles-Embrun), France |
| 25.3 | Ordained Priest | Leo (Johannes) von Mergel, O.S.B. † | Priest of Eichstätt, Germany | Bishop |
| 22.6 | Ordained Priest | Giovanni Vincenzo Tasso, C.M. † | Priest of Congregation of the Mission | Bishop of Aosta, Italy |
| 30 Mar | | Born | Vasyl Mastiukh (Maścjuch) † | | Apostolic Administrator of Lemkowszczyzna (Ukrainian), Poland |
| 50.9 | Ordained Bishop | Salvatore Luigi Zola, C.R.L. † | Bishop of Ugento, Italy | Bishop of Lecce, Italy |
| Apr | 53.8 | Appointed | Venanzio Mobili † | President of the Pontifical Ecclesiastical Academy |
| 1 Apr | 66.5 | Died | Jacques-Antoine-Claude-Marie Boudinet † | Bishop of Amiens, France |
| 46.0 | Appointed | Édouard-Charles Fabre † | Coadjutor Bishop of Montréal, Québec, Canada | Archbishop of Montréal, Québec, Canada |
| 46.0 | Appointed | Édouard-Charles Fabre † | Titular Bishop of Gratianopolis | Archbishop of Montréal, Québec, Canada |
| 3 Apr | 82.6 | Died | Anton Frenzel † | Auxiliary Bishop of Warmia (Ermland), Poland |
| 4 Apr | 48.4 | Appointed | Pierre-Ferdinand Vitte, S.M. † | Vicar Apostolic of Nouvelle-Calédonie (New Caledonia), Pacific (Oceania) | Vicar Apostolic Emeritus |
| 48.4 | Appointed | Pierre-Ferdinand Vitte, S.M. † | Titular Bishop of Anastasiopolis | Vicar Apostolic Emeritus of Nouvelle-Calédonie (New Caledonia), Pacific (Oceania) |
| 6 Apr | | Born | Jean-Camille Costes † | | Bishop of Angers, France |
| 22.2 | Ordained Priest | Adalbert Endert † | Priest of Fulda, Germany | Bishop |
| 7 Apr | 71.1 | Died | Giuseppe Cardoni † | Bishop Emeritus of Recanati e Loreto, Italy |
| 10 Apr | 45.3 | Died | Ephrem-Edouard-Lucien-Théoponte Garrelon, O.C.D. † | Vicar Apostolic of Mangalore, India |
| Born | John Meehan, C.S.Sp. † | | Superior Emeritus of Gambia |
| 12 Apr | 22.5 | Ordained Priest | Alfonso Maria Andreoli † | Priest | Bishop of Recanati e Loreto, Italy |
| 24.5 | Ordained Priest | Ignace Denis Ephrem Rahmani (Rahamani) † | Priest | Patriarch of Antiochia {Antioch} (Syrian), Lebanon |
| 26.1 | Ordained Priest | Nicolo Zimarino † | Priest | Bishop of Gravina e Irsina (Montepeloso), Italy |
| 14 Apr | 69.5 | Died | Miguel García Cuesta † | Cardinal, Archbishop of Santiago de Compostela, Spain |
| Born | Emile-Jean-François Thiénard † | | Bishop of Constantine (-Hippone), Algeria |
| 17 Apr | | Born | Emmanuel Coste † | | Archbishop of Aix (-Arles-Embrun), France |
| 65.5 | Died | Giuseppe Targioni † | Bishop of Volterra, Italy |
| 22 Apr | 73.0 | Died | Giuseppe Maria Bovieri † | Bishop of Montefiascone, Italy |
| 25 Apr | | Born | Manoel Antônio de Paiva (Payva) † | | Bishop of Garanhuns, Pernambuco, Brazil |
| 22.4 | Ordained Priest | Agostino Richelmy † | Priest of Torino {Turin}, Italy | Cardinal, Archbishop |
| 26 Apr | | Born | André-Etienne-Athanase Hermel, SS.CC. † | | Vicar Apostolic of Tahiti {Isole Tahiti}, French Polynesia, Pacific (Oceania) |
| 27 Apr | 78.1 | Died | Niccola Golia † | Bishop of Cariati, Italy |
| 35.8 | Ordained Bishop | William Hickley Gross, C.Ss.R. † | Bishop of Savannah, Georgia, USA | Archbishop of Oregon City, Oregon, USA |
| 30 Apr | 90.1 | Died | Alexis Billiet † | Cardinal, Archbishop of Chambéry, France |