| Date | Age | Event | Bishop | Title | Current Title |
| unknown | 63.0 | Died | Basile Mansur Asmar † | Archbishop Emeritus of Gazireh (Gezira) (Chaldean), Turkey |
| 42.7 | Incardinated | Luigi di Canossa † | Priest of Verona, Italy | Cardinal, Bishop |
| 67.0 | Died | Joannes Derderian † | Bishop of Ispahan {Esfáan) (Armenian), Iran |
| 25.2 | Professed | Edouard-Auguste Dubar, S.J. † | Member of Society of Jesus | Vicar Apostolic of Southeastern Chi-Li {Ce-Li Meridio-Orientale}, China |
| 80.0 | Resigned | Antonio de Franci † | Auxiliary Bishop of Ostia (-Velletri), Italy |
| 26.7 | Professed | Valentin Garnier, S.J. † | Priest of Society of Jesus | Vicar Apostolic of Kiangnan, China |
| Appointed | Giuseppe Matear † | Bishop of Alep (Armenian), Syria |
| 88.1 | Died | Martinus Miskólczy † | Bishop of Knin, Croatia |
| 40.0 | Appointed | Michael Monaghan † | Apostolic Administrator of Port of Spain, Trinidad and Tobago, Antilles | Bishop of Roseau, Dominica, Antilles |
| 18.2 | Professed | Pasquale (Amato) Pagnucci, O.F.M. † | Member of Order of Friars Minor | Vicar Apostolic of Northern Shensi {Scen-Si Settentrionale}, China |
| 56.9 | Appointed | Patrick Phelan, P.S.S. † | Coadjutor Bishop of Kingston, Ontario, Canada | Bishop |
| 66.8 | Died | Jose Ignatius Sánchez Navarro † | Bishop of Linares o Nueva León, Nuevo León, México |
| 22.3 | Ordained Priest | Placido Maria Schiaffino, O.S.B. † | Priest of Order of Saint Benedict | Cardinal, Prefect of the Congregation of the Index |
| Born | Johannes Baptist Steeneman, C.I.C.M. † | Niederlande | Superior of I-li o Kul-Dia, China |
| 29.1 | Professed | François-Ferdinand Tagliabue, C.M. † | Priest of Congregation of the Mission | Vicar Apostolic of Northern Chi-Li {Ce-Li Settentrionale} o Pe-Kin, China |
| 41.3 | Appointed | Jean-Marie Tissot, M.S.F.S. † | Pro-Vicar Apostolic of Vizagapatam, India | Bishop of Vizagapatam, India |
| 18.2 | Professed | Tommaso Maria Zigliara, O.P. † | Member of Order of Friars Preachers | Cardinal, Bishop-Elect of Frascati, Italy |
| Jan | 35.8 | Resigned | Théodore-Augustin Forcade, M.E.P. † | Vicar Apostolic of Japan | Archbishop of Aix (-Arles-Embrun), France |
| 3 Jan | | Born | Silvio Gasperini † | Bevagna | Bishop of Anagni, Italy |
| 4 Jan | | Born | John Shanley † | Albion, NY | Bishop of Fargo, North Dakota, USA |
| 6 Jan | 66.2 | Resigned | János Keresztély Scitovszky † | Apostolic Administrator of Pécs, Hungary | Cardinal, Archbishop of Esztergom, Hungary |
| 21.2 | Professed | Rupert Seidenbusch, O.S.B. † | Member of Order of Saint Benedict | Vicar Apostolic Emeritus of Saint Cloud, Minnesota, USA |
| 7 Jan | | Born | Anatole-Joseph Toulotte, M. Afr. † | Lisbourg, France | Vicar Apostolic Emeritus of Sahara and Sudan |
| 10 Jan | | Born | Wilhelm Atanazy Kloske † | Klein-Nimsdorf | Auxiliary Bishop of Gniezno e Poznań, Poland |
| 11 Jan | | Born | František Kordač † | Seletice | Archbishop Emeritus of Praha {Prague}, Czech Republic |
| 12 Jan | | Born | Denis Kelly † | Killaloe | Bishop of Ross, Ireland |
| 15 Jan | | Born | Léonce Bridoux, M. Afr. † | Henin-Liétard, France | Vicar Apostolic of Tanganika, Tanzania |
| 18 Jan | 41.2 | Ordained Bishop | Clemente de Jesús Munguía y Núñez † | Bishop of Michoacán, México | Archbishop of Michoacán, México |
| 19 Jan | 57.5 | Died | Giovanni Constantini † | Bishop of Molfetta-Giovinazzo-Terlizzi, Italy |
| 48.4 | Selected | Tomás Iglesias y Bárcones † | Patriarch of West Indies, Spain |
| 20 Jan | | Born | Alejandro Cañál, O.P. † | San Félix de Valdesoto, Spain | Vicar Apostolic of Amoy, China |
| 29.2 | Professed | Peter Dufal, C.S.C. † | Member of Congregation of Holy Cross | Coadjutor Bishop Emeritus of Galveston, Texas, USA |
| 25 Jan | 44.8 | Ordained Bishop | Manoel Joaquim da Silveira † | Bishop of São Luís do Maranhão, Brazil | Archbishop of São Salvador da Bahia, Brazil |
| 76.1 | Died | José Manuel Eufrasio de Quiroga Sarmiento † | Bishop of San Juan de Cuyo, Argentina |
| 26 Jan | | Born | Francisco Ferreira da Silva † | Aguiar da Beira | Prelate of Mozambico, Mozambique |
| 27 Jan | | Born | Eduardo Duarte e Silva † | Florianopolis | Bishop Emeritus of Uberaba, Brazil |
| 1 Feb | 40.7 | Ordained Bishop | Giuseppe Arachial † | Bishop of Trabzon (Armenian), Turkey | Bishop of Ancira (Angora) (Armenian), Turkey |
| Born | Hugh McSherry † | Loughgilly, Ireland | Vicar Apostolic Emeritus of Cape of Good Hope, Eastern District {Capo de Buona Speranza, Distretto Orientale}, South Africa |
| 60.1 | Ordained Bishop | Miguel Salvá y Munar † | Bishop of Mallorca y Ibiza, Spain |
| 2 Feb | 32.5 | Professed | Robert Aston Coffin, C.SS.R. † | Priest of Congregation of the Most Holy Redeemer | Bishop of Southwark, England, Great Britain |
| 4 Feb | | Born | João Paulino de Azevedo e Castro † | Lages do Pico, Portugal | Bishop of Macau, China |
| 5 Feb | 59.5 | Selected | Ignác Fábry † | Bishop of Košice, Slovakia |
| 72.6 | Died | Giovan Domenico Stefanelli, O.P. † | Archbishop Emeritus of Lucca, Italy |
| 8 Feb | 51.8 | Installed | Anselmo Llorente y La Fuente † | Bishop of San José de Costa Rica |
| 10 Feb | | Ordained Bishop | Ebed-Jesu-Thomas (Atanasio Tommaso) Dircho (Dosciù) † | Bishop of Amadiyah (Chaldean), Iraq |
| 11 Feb | 68.1 | Died | Antonio Mantecón y Ibáñez † | Bishop of Antequera, Oaxaca, México |
| 73.1 | Died | Patrick MacNicholas † | Bishop of Achonry, Ireland |
| 12 Feb | | Born | Eugène-Marie-Joseph Allys, M.E.P. † | Paimpont, France | Vicar Apostolic Emeritus of Huê, Viet Nam |
| 13 Feb | 40.9 | Appointed | St. John Nepomucene Neumann, C.SS.R. † | Bishop of Philadelphia, Pennsylvania, USA |
| 18 Feb | | Born | Antonio Augusto Intreccialagli, O.C.D. † | Montecompatri | Archbishop of Monreale, Italy |
| 66.8 | Died | Miguel José Irigoyen † | Bishop of Calahorra y La Calzada, Spain |
| 19 Feb | 40.6 | Selected | Niccola Maria Guida † | Bishop of Molfetta-Giovinazzo-Terlizzi, Italy |
| 20 Feb | 73.2 | Died | Antonio Francesco Orioli, O.F.M. Conv. † | Cardinal, Prefect of the Congregation of Bishops and Regulars |
| 22 Feb | 72.4 | Died | Castruccio Castracane degli Antelminelli † | Cardinal, Bishop of Palestrina, Italy |
| 23 Feb | 39.4 | Ordained Bishop | Jerome-Paul Hindi † | Bishop of Gazireh (Gezira) (Chaldean), Turkey |
| 26 Feb | 83.9 | Died | Daniel Murray † | Archbishop of Dublin, Ireland |
| 27 Feb | 32.1 | Appointed | Louis-Gabriel Delaplace, C.M. † | Vicar Apostolic of Kiam-Si {Kiangsi}, China | Vicar Apostolic of Northern Chi-Li {Ce-Li Settentrionale} o Pe-Kin, China |
| 32.1 | Appointed | Louis-Gabriel Delaplace, C.M. † | Titular Bishop of Hadrianopolis in Honoriade | Vicar Apostolic of Northern Chi-Li {Ce-Li Settentrionale} o Pe-Kin, China |
| 40.6 | Ordained Bishop | Colin Francis MacKinnon † | Bishop of Arichat, Nova Scotia, Canada | Bishop Emeritus |
| Born | Jean-François-Ernest Ricard † | Sanvensa | Archbishop Emeritus of Auch (-Condom-Lectoure-Lombez), France |
| 72.4 | Selected | Tomás Roda y Rodríguez † | Bishop of Menorca, Spain | Bishop of Jaén, Spain |
| 29 Feb | | Born | Josef Doubrava † | Mnišek | Bishop of Hradec Králové, Czech Republic |
| 5 Mar | | Born | Gennaro Cosenza † | Naples | Archbishop Emeritus of Capua, Italy |
| 6 Mar | 23.2 | Ordained Priest | Edward Gilpin Bagshawe, C.O. † | Priest of Confederation of Oratorians of St. Philip Neri | Bishop Emeritus of Nottingham, England, Great Britain |
| 23.8 | Ordained Priest | Matthieu-Victor-Félicien Balaïn, O.M.I. † | Priest of Oblates of Mary Immaculate | Archbishop of Auch, France |
| 79.2 | Died | Vincent Battucci † | Archbishop of Bar (Antivari), Montenegro |
| 8 Mar | | Born | Francesco di Paolo Grozo † | Cajamarca | Bishop of Cajamarca, Peru |
| 9 Mar | 64.5 | Selected | Cipriano Juárez y Berzosa † | Bishop of Calahorra y La Calzada, Spain |
| 11 Mar | 66.3 | Died | Luciano Gasadevall y Durán † | Bishop of Vic, Spain |
| 14 Mar | 24.5 | Ordained Deacon | Mihály Pável † | Deacon | Bishop of Oradea Mare {Gran Varadino} (Romanian), Romania |
| 69.8 | Died | Aloysius Maria Perrone † | Bishop of Gerace, Italy |
| 15 Mar | 55.7 | Appointed | Luigi Amat di San Filipo e Sorso † | Cardinal-Bishop of Palestrina | Cardinal, Official of the Roman Curia - Other |
| 45.8 | Appointed | Gaetano Bedini † | Titular Archbishop of Thebae | Cardinal, Bishop of Viterbo e Tuscania, Italy |
| 55.4 | Appointed | Georg Anton Brinkmann † | Auxiliary Bishop of Münster, Germany |
| 55.4 | Appointed | Georg Anton Brinkmann † | Titular Bishop of Oropus | Auxiliary Bishop of Münster, Germany |
| 56.7 | Elevated to Cardinal | Giovanni Brunelli † | In Pectore | Cardinal, Bishop of Osimo e Cingoli, Italy |
| 39.9 | Elevated to Cardinal | Girolamo d’Andrea † | Cardinal, Prefect Emeritus of the Congregation of the Index |
| 60.5 | Appointed | Antônio Joaquim de Mello † | Bishop of São Paulo, Brazil |
| 56.3 | Elevated to Cardinal | François-Auguste-Ferdinand Donnet † | Cardinal, Archbishop of Bordeaux, France |
| 56.9 | Confirmed | Ignaz Feigerle † | Bishop of Sankt Pölten, Austria |
| 58.2 | Confirmed | Jean-Jacques-Marie-Antoine Guerrin † | Bishop of Langres, France |
| 35.4 | Appointed | Lajos Haynald † | Coadjutor Bishop of Transilvania, Erdély, Siebenbürgen, Romania | Cardinal, Archbishop of Kalocsa, Hungary |
| 35.4 | Appointed | Lajos Haynald † | Titular Bishop of Hebron | Cardinal, Archbishop of Kalocsa, Hungary |
| 62.5 | Appointed | Joseph Krautmann † | Auxiliary Bishop of Esztergom, Hungary |
| 62.5 | Appointed | Joseph Krautmann † | Titular Bishop of Knin, Croatia | Auxiliary Bishop of Esztergom, Hungary |
| 61.7 | Appointed | Jozef Kunszt † | Archbishop of Kalocsa, Hungary |
| 55.3 | Elevated to Cardinal | Domenico Lucciardi † | Cardinal, Bishop of Senigallia, Italy |
| 50.8 | Confirmed | Jean-Paul-François-Marie-Félix Lyonnet † | Bishop of Saint-Flour, France | Archbishop of Albi, France |
| 50.0 | Confirmed | Frédéric-Gabriel-Marie-François de Marguerye † | Bishop of Autun, France | Bishop Emeritus of Autun (-Châlon-sur-Saône-Mâcon), France |
| 56.5 | Appointed | Paolo Maria Mondio † | Titular Bishop of Myriophytos | Prelate of Santa Lucia del Mela, Italy |
| 46.3 | Elevated to Cardinal | Carlo Luigi Morichini † | Cardinal, Prefect of the Apostolic Signatura |
| 76.5 | Appointed | Giovanni Pietro Aurelio Mutti, O.S.B. † | Patriarch of Venezia {Venice}, Italy |
| 54.0 | Confirmed | Józef Alojzy Pukalski † | Bishop of Tarnów, Poland |
| 52.1 | Appointed | Louis-Eugène Regnault † | Titular Bishop of Eumenia | Bishop of Chartres, France |
| 52.1 | Confirmed | Louis-Eugène Regnault † | Coadjutor Bishop of Chartres, France | Bishop |
| 51.2 | Confirmed | Manuel Bento Rodrigues da Silva † | Archbishop (Personal Title) of Coimbra, Portugal | Cardinal, Patriarch of Lisboa {Lisbon}, Portugal |
| 51.1 | Appointed | Giuseppe Luigi Trevisanato † | Bishop of Verona, Italy | Cardinal, Patriarch of Venezia {Venice}, Italy |
| 63.9 | Appointed | Gabriele Ventriglia † | Bishop of Caiazzo, Italy |
| 53.5 | Elevated to Cardinal | Michele Viale-Prelà † | In Pectore | Cardinal, Archbishop of Bologna, Italy |
| 16 Mar | | Born | Primo Bianchi † | Delbenisti | Archbishop Emeritus of Durrës (Durazzo), Albania |
| 18 Mar | 56.4 | Appointed | Juan José Arbolí y Acaso † | Bishop of Guadix, Spain | Bishop of Cádiz y Ceuta, Spain |
| 46.2 | Appointed | Giovanni Battista Arnaldi † | Apostolic Administrator of Terni, Italy | Archbishop of Spoleto, Italy |
| 46.2 | Appointed | Giovanni Battista Arnaldi † | Titular Bishop of Auzia | Archbishop of Spoleto, Italy |
| 45.8 | Appointed | Gaetano Bedini † | Apostolic Nuncio to Brazil | Cardinal, Bishop of Viterbo e Tuscania, Italy |
| 58.3 | Appointed | Juan José Biec Belio † | Bishop of Jaca, Spain |
| 46.4 | Appointed | Francesco Emilio Cugini † | Bishop of Modena (e Nonantola), Italy | Archbishop of Modena (e Nonantola), Italy |
| 39.9 | Appointed | Girolamo d’Andrea † | Cardinal-Priest of Sant’Agnese fuori le mura | Cardinal, Prefect Emeritus of the Congregation of the Index |
| 40.7 | Appointed | Bartolomeo d’Avanzo † | Bishop of Castellaneta, Italy | Cardinal, Bishop of Calvi e Teano, Italy |
| 49.0 | Appointed | Raffaele de Franco † | Bishop of Catanzaro, Italy |
| 50.2 | Appointed | Benito Forcelledo Tuero † | Bishop of Astorga, Spain |
| 46.0 | Appointed | Filippo Gallo, C.M. † | Bishop of Bovino, Italy | Bishop Emeritus |
| 47.8 | Appointed | Francisco Landeira y Sevilla † | Bishop of Teruel (-Albarracín), Spain | Bishop of Cartagena (en España) |
| 48.3 | Appointed | Luis de la Lastra y Cuesta † | Bishop of Orense, Spain | Cardinal, Archbishop of Sevilla {Seville}, Spain |
| 47.8 | Appointed | Giovanni Giuseppe Longobardi † | Bishop of Andria, Italy |
| 40.2 | Appointed | Pedro José de Jesús Loza y Pardavé † | Bishop of Sonora, México | Archbishop of Guadalajara, Jalisco, México |
| 55.3 | Appointed | Domenico Lucciardi † | Cardinal-Priest of San Clemente | Cardinal, Bishop of Senigallia, Italy |
| 42.7 | Appointed | Antonio Magrini † | Bishop of Forli, Italy |
| 48.7 | Appointed | Vincenzo Maria Marolda, C.SS.R. † | Titular Bishop of Samosata | Bishop of Capaccio e Vallo della Lucania, Italy |
| 48.7 | Appointed | Vincenzo Maria Marolda, C.SS.R. † | Apostolic Administrator of Capaccio e Vallo della Lucania, Italy | Bishop |
| 56.2 | Appointed | Jacques-Marie-Adrien-Césaire Mathieu † | Cardinal-Priest of San Silvestro in Capite | Cardinal, Archbishop of Besançon, France |
| 46.3 | Appointed | Carlo Luigi Morichini † | Cardinal-Priest of Sant’Onofrio | Cardinal, Prefect of the Apostolic Signatura |
| Born | Alexandre Piquemal † | Mirepoix, France | Auxiliary Bishop of Alger, Algeria |
| 40.8 | Appointed | Luigi Sodo † | Bishop of Crotone (Cotrone), Italy | Bishop of Telese o Cerreto Sannita, Italy |
| 56.1 | Appointed | Adamus Wojtkiewicz † | Bishop of Minsk, Belarus |
| 19 Mar | 26.2 | Ordained Priest | Noël-Mathieu-Victor-Marie Gaussail † | Priest | Bishop of Perpignan-Elne, France |
| 26.9 | Ordained Priest | Francis Xavier Leray † | Priest of Natchitoches, Louisiana, USA | Archbishop of New Orleans, Louisiana, USA |
| 21 Mar | 72.3 | Died | Tommaso Bernetti † | Cardinal, Secretary Emeritus of the Secretariat of State |
| 24.5 | Ordained Priest | Mihály Pável † | Priest | Bishop of Oradea Mare {Gran Varadino} (Romanian), Romania |
| 22 Mar | | Born | Hector-Irénée Sévin † | Simandre | Cardinal, Archbishop of Lyon (-Vienne), France |
| 27 Mar | 22.5 | Ordained Deacon | Annibale Barabesi † | Deacon | Bishop of San Miniato, Italy |
| 25.6 | Ordained Priest | Alessandro Maria Basile, C.SS.R. † | Priest of Congregation of the Most Holy Redeemer | Bishop of Cassano all’Jonio, Italy |
| 41.1 | Selected | Mario De Luca † | Bishop of Gravina e Irsina, Italy |
| 70.0 | Died | Józef Joachim Goldtmann † | Bishop of Sandomierz, Poland |
| 24.1 | Ordained Priest | Salvatore Nappi † | Priest | Archbishop Emeritus of Conza e Campagna, Italy |
| 24.0 | Ordained Priest | Benito Sanz y Forés † | Priest of Valencia, Spain | Cardinal, Archbishop of Sevilla {Seville}, Spain |
| 28 Mar | 46.4 | Ordained Bishop | Francesco Emilio Cugini † | Bishop of Modena (e Nonantola), Italy | Archbishop of Modena (e Nonantola), Italy |
| 40.7 | Ordained Bishop | Bartolomeo d’Avanzo † | Bishop of Castellaneta, Italy | Cardinal, Bishop of Calvi e Teano, Italy |
| 49.0 | Ordained Bishop | Raffaele de Franco † | Bishop of Catanzaro, Italy |
| 46.0 | Ordained Bishop | Filippo Gallo, C.M. † | Bishop of Bovino, Italy | Bishop Emeritus |
| 47.8 | Ordained Bishop | Giovanni Giuseppe Longobardi † | Bishop of Andria, Italy |
| 24.0 | Ordained Priest | James Murray † | Priest of Dublin, Ireland | Bishop of Maitland, Australia |
| 41.0 | Ordained Bishop | St. John Nepomucene Neumann, C.SS.R. † | Bishop of Philadelphia, Pennsylvania, USA |
| 40.9 | Ordained Bishop | Luigi Sodo † | Bishop of Crotone (Cotrone), Italy | Bishop of Telese o Cerreto Sannita, Italy |
| 4 Apr | 68.8 | Died | Basilio Antonio Carrasco y Hernando, O. de M. † | Bishop of Ibiza, Spain |
| 6 Apr | 48.4 | Selected | José Ávila Lamas † | Bishop of Plasencia, Spain | Bishop of Orense, Spain |
| 7 Apr | 62.0 | Died | Cornelius Richard Antoon van Bommel † | Bishop of Liège, Belgium |
| 10 Apr | 27.8 | Ordained Priest | Manuel Gómez-Salazar y Lucio-Villegas † | Priest | Archbishop of Burgos, Spain |
| 22.9 | Ordained Priest | John Joseph Hogan † | Priest of Saint Louis, Missouri, USA | Bishop of Kansas City, Missouri, USA |
| 23.3 | Ordained Priest | Francesco Magani † | Priest | Bishop of Parma (-Fontevivo), Italy |
| 70.7 | Selected | Feliciano José Rodrigues de Araujo Prates (de Castilhos) † | Bishop of São Pedro do Rio Grande do Sul, Brazil |
| 11 Apr | 50.1 | Installed | Frédéric-Gabriel-Marie-François de Marguerye † | Bishop of Autun, France | Bishop Emeritus of Autun (-Châlon-sur-Saône-Mâcon), France |
| 14 Apr | 50.4 | Appointed | Gabriel della Genga Sermattei † | Cardinal, Prefect of the Roman Curia - Other |
| 15 Apr | 82.1 | Died | Grzegorz Tomasz Ziegler, O.S.B. † | Bishop of Linz, Austria |
| 17 Apr | 50.4 | Died | Leonardo Moccia † | Bishop of Gallipoli, Italy |
| 18 Apr | 22.5 | Ordained Priest | Domenico Pio Rossi, O.P. † | Priest | Bishop of Concordia (Sagittaria), Italy |
| 19 Apr | 51.7 | Died | Jacobus Grooff † | Vicar Apostolic of Dutch Guyana-Suriname, Suriname, Antilles |
| 45.4 | Succeeded | Pietro Maria Vranken † | Vicar Apostolic of Batavia, Indonesia | Vicar Apostolic Emeritus |
| 21 Apr | | Born | Victoriano Guisasola y Menéndez † | Oviedo | Cardinal, Archbishop of Toledo, Spain |
| 24 Apr | | Born | Angelo Portelli, O.P. † | Valletta | Auxiliary Bishop of Malta |
| 51.9 | Died | Giosuè Maria Saggese, C.SS.R. † | Archbishop of Chieti, Italy |
| 25 Apr | 57.0 | Ordained Bishop | Ignaz Feigerle † | Bishop of Sankt Pölten, Austria |
| 50.9 | Ordained Bishop | Jean-Paul-François-Marie-Félix Lyonnet † | Bishop of Saint-Flour, France | Archbishop of Albi, France |
| 26 Apr | | Born | Giovanni Battista Guidi † | Collepardo, Italy | Apostolic Delegate to Philippines |
| Born | Alfonso Maria Mistrangelo, Sch. P. † | Savona | Cardinal, Archbishop of Firenze {Florence}, Italy |
| 55.9 | Died | Michele Navazio † | Bishop of L’Aquila, Italy |
| Born | Domenico Taccone-Gallucci † | Mileto | Bishop Emeritus of Nicotera e Tropea, Italy |
| 30 Apr | 68.9 | Resigned | Manuel López Santisteban † | Bishop of Avila, Spain | Bishop Emeritus |