| Date | Age | Event | Bishop | Title | Current Title | 
|---|
| unknown | 23.0 | Professed | Étienne-Barthélemy Bagnoud, C.R.A. † | Member of Swiss Congregation of Canons Regular of Saint Maurice of Agaune | Abbot of Saint-Maurice, Switzerland | 
| 24.5 | Ordained Priest | Edward Barron † | Priest | Vicar Apostolic Emeritus of Two Guineas and Senegambia {Guinea Superiore e Inferiore e di Sierra Leone}, Gabon | 
| 34.0 | Appointed | Michel Cattoula (Kattula) † | Archbishop of Seert (Chaldean), Turkey | 
| 24.0 | Ordained Priest | William Bernard Allen Collier, O.S.B. † | Priest of Order of Saint Benedict | Bishop Emeritus of Port-Louis, Mauritius | 
| 26.0 | Professed | Jean-Pierre Dalmond, C.S.Sp. † | Priest of Congregation of the Holy Spirit | Prefect of Madagascar, Madagascar | 
| 23.9 | Ordained Priest | Benito Forcelledo Tuero † | Priest | Bishop of Astorga, Spain | 
|  | Born | Michael J. Hurley † |  | Priest of Peoria, Illinois, USA | 
|  | Appointed | Grégoire Issa Mahfouz † | Archbishop | Archbishop of Mossul (Syrian), Iraq | 
| 23.2 | Ordained Priest | Antonio Izzo † | Priest | Bishop of Isernia e Venafro, Italy | 
|  | Born | Patrick MacAlister † |  | Bishop of Down and Connor, Ireland | 
| 16.2 | Professed | Luigi Carlo Antonio Moccagatta, O.F.M. Obs. † | Member of Order of Observant Friars Minor | Vicar Apostolic of Shansi {Scian-Si} (Chan-Si), China | 
|  | Resigned | Verissimo Monteiro da Serra, C.M. † | Bishop-Elect of Peking [Beijing], China | Former Bishop-Elect | 
| 33.0 | Appointed | Paolo Moise Musa † | Bishop of Tripoli del Libano {Tarabulus} (Maronite) | 
| 31.0 | Appointed | Mathieu Nakkar † | Archbishop | Archbishop of Homs (-Hama-Nabk) (Syrian), Syria | 
| 31.0 | Ordained Bishop | Mathieu Nakkar † | Archbishop | Archbishop of Homs (-Hama-Nabk) (Syrian), Syria | 
| 23.6 | Ordained Priest | François-Alexis Rameaux, C.M. † | Priest of Congregation of the Mission | Vicar Apostolic of Chekiang {Ce-Kiam} and Kiangsi, China | 
| 79.2 | Died | Franciszek Remigiusz Zambrzycki † | Auxiliary Bishop of Kyiv and Chernihiv (Kijów and Czernihow), Ukraine | 
| Jan | 22.9 | Ordained Priest | Domenico Zelo † | Priest | Bishop of Aversa, Italy | 
| 1 Jan |  | Ordained Bishop | Grégoire Issa Mahfouz † | Archbishop | Archbishop of Mossul (Syrian), Iraq | 
|  | Born | Stephen Michael Vincent Ryan, C.M. † |  | Bishop of Buffalo, New York, USA | 
| 24.1 | Ordained Bishop | Ignace Antoine (Jules) Samhiri † | Bishop of Mardin (Syrian), Turkey | Patriarch of Antiochia {Antioch} (Syrian), Lebanon | 
| 2 Jan | 69.2 | Selected | Patrício da Silva, O.E.S.A. † | Cardinal, Patriarch of Lisboa {Lisbon}, Portugal | 
| 3 Jan | 66.5 | Died | Giovanni Collaro † | Bishop of Tinos and Mykonos, Greece | 
| 9 Jan |  | Born | Charles-Constant Jolivet, O.M.I. † |  | Vicar Apostolic of Natal, South Africa | 
| 11 Jan |  | Born | Giuseppe Maria Cione † |  | Bishop of Policastro, Italy | 
| 75.2 | Selected | Pedro Gutiérrez de Cos y Saavedra Seminario † | Bishop of Puerto Rico (Porto Rico) | 
| 12 Jan |  | Born | Giuseppe Masi † |  | Titular Bishop of Tempe | 
|  | Born | Antoni Franciszek Ksawery Sotkiewicz † |  | Bishop of Sandomierz, Poland | 
| 13 Jan |  | Born | Atanasio Raffaele Ciarchi † |  | Archbishop of Baghdad (Syrian), Iraq | 
|  | Born | Géraud-Marie Soubrier † |  | Bishop Emeritus of Oran, Algeria | 
| 14 Jan | 60.0 | Resigned | Louis-Guillaume-Valentin Dubourg, P.S.S. † | Bishop of Louisiana and the Two Floridas (Saint Louis of New Orleans), USA | Archbishop of Besançon, France | 
| 15 Jan | 65.2 | Ordained Bishop | Antonio Domenico Gamberini † | Bishop of Orvieto, Italy | Cardinal, Cardinal-Bishop of Sabina | 
| 19 Jan |  | Born | Isidore-Joseph du Rousseaux † |  | Bishop of Tournai {Doornik}, Belgium | 
| 20 Jan |  | Born | José María Covarrubias y Mejía † |  | Bishop of Antequera, Oaxaca, México | 
| 22 Jan | 77.4 | Died | Antonio Codronchi † | Archbishop of Ravenna, Italy | 
| 23 Jan |  | Born | Leopoldo Franchi † |  | Bishop Emeritus of Livorno, Italy | 
| 24 Jan |  | Born | Antonio Maria Cesareo † |  | Titular Bishop of Helenopolis in Bithynia | 
| 26 Jan |  | Born | Leonardo de St. Louis Mellano, O.C.D. † |  | Bishop of Verapoly, India | 
|  | Born | Flaviano Simoneschi † |  | Bishop Emeritus of Terracina, Priverno e Sezze, Italy | 
| 27 Jan | 63.5 | Appointed | Alexander MacDonell † | Bishop of Kingston, Ontario, Canada | 
| 48.1 | Appointed | Antonino Pezzoni, O.F.M. Cap. † | Vicar Apostolic of Tibet-Hindustan, India | Vicar Apostolic Emeritus | 
| 48.1 | Appointed | Antonino Pezzoni, O.F.M. Cap. † | Titular Bishop of Esbus | Vicar Apostolic Emeritus of Tibet-Hindustan, India | 
| 28 Jan |  | Born | Julian Cáceres Negrón † |  | Auxiliary Bishop of Lima, Peru | 
| 30 Jan | 56.6 | Selected | Pablo Hernández, O.SS.T. † | Bishop of Ceuta, Spain | 
|  | Born | Grgur Rajčević † |  | Archbishop of Zadar (Zara), Croatia | 
| Feb | 26.0 | Appointed | Martinus van der Weijden † | Prefect of Dutch Guyana-Suriname, Antilles | 
| 3 Feb | 23.8 | Laicized | Abraham Chasciùr † |  | 
| 23.8 | Removed | Abraham Chasciùr † | Titular Archbishop of Memphis |  | 
| 49.1 | Appointed | Jan Krasovskyj (Krassowski) † | Archbishop (Personal Title) of Lutsk and Ostroh (Ukrainian), Ukraine | Bishop | 
| 7 Feb |  | Born | Luis Bruschetti † |  | Titular Bishop of Abydus | 
| 8 Feb | 73.2 | Died | Jean-Baptiste-Marie Aubriot de la Palme † | Bishop Emeritus of Aosta, Italy | 
| 60.4 | Selected | Philibert de Bruillard † | Bishop of Grenoble, France | Bishop Emeritus | 
| 10 Feb |  | Born | Armand-Joseph Fava † |  | Bishop of Grenoble, France | 
| 11 Feb | 80.8 | Died | Salvatore Maria Pignattaro, O.P. † | Bishop Emeritus of Isernia, Italy | Bishop | 
| 12 Feb | 54.1 | Installed | Giovanni Alessandro Muzi † | Bishop of Città di Castello, Italy | 
| 48.2 | Ordained Bishop | Antonino Pezzoni, O.F.M. Cap. † | Titular Bishop of Esbus | Vicar Apostolic Emeritus of Tibet-Hindustan, India | 
| 18 Feb | 27.9 | Ordained Priest | Fernando Argüelles Miranda † | Priest of Oviedo, Spain | Bishop of Astorga, Spain | 
| 23.8 | Ordained Priest | José de Viteri y Ungo † | Priest of Guatemala | Bishop of Nicaragua | 
| 26.0 | Ordained Priest | Luigi Margarita, C.M. † | Priest of Congregation of the Mission | Bishop of Oria, Italy | 
| 28.0 | Ordained Priest | Giovanni Battista Montixi † | Priest | Bishop of Iglesias, Italy | 
| 19 Feb | 69.0 | Ordained Bishop | Abbon-Pierre-François Bonnel de la Brageresse † | Bishop of Viviers, France | Bishop Emeritus | 
| 21 Feb | 45.3 | Died | João Damasceno Da Silva Póvoas † | Bishop of Angola e Congo | 
| 22 Feb |  | Born | Giacinto Rossi, O.P. † |  | Bishop of Luni, Sarzana e Brugnato, Italy | 
| 23 Feb | 82.9 | Died | Charles-François-Joseph Pisani de La Gaude † | Bishop of Namur {Namen}, Belgium | 
| 24 Feb | 22.2 | Ordained Deacon | Franciszek Ksawery Wierzchlejski † | Deacon | Archbishop of Lviv, Ukraine | 
| 26 Feb | 65.3 | Ordained Bishop | Jacques-Louis-David de Séguin des Hons † | Bishop of Troyes, France | 
| Mar |  | Appointed | Jakiv (Jakub) Martusevyc (Martusiewicz) † | Archbishop of Polotsk (Połock)-Vitebsk (Ukrainian), Belarus | 
| 2 Mar | 33.1 | Ordained Bishop | Paolo Moise Musa † | Bishop of Tripoli del Libano {Tarabulus} (Maronite) | 
| 6 Mar | 63.0 | Died | José de Jesus Maria Pinto, C.R.S.A. † | Bishop of Lamego, Portugal | 
| 7 Mar |  | Born | Andrew Higgins † |  | Bishop of Kerry (o Ardfert) e Aghadoe, Ireland | 
| 8 Mar | 89.3 | Died | Filippo Sardi † | Archbishop of Lucca, Italy | 
| 11 Mar | 23.8 | Ordained Priest | Michele Adinolfi † | Priest | Bishop of Nocera de’ Pagani, Italy | 
| 22.5 | Ordained Priest | Clemente (a S. Theresia) Manzini, O. Carm. † | Priest of Order of Our Lady of Mt. Carmel | Bishop of Cuneo, Italy | 
| 23.5 | Ordained Priest | Sébastin-Théophille Neyret, M.S.F.S. † | Priest of Missionaries of St. Francis de Sales d’Annecy | Vicar Apostolic of Vizagapatnam, India | 
| 25.2 | Ordained Priest | Manuel Bento Rodrigues da Silva † | Priest | Cardinal, Patriarch of Lisboa {Lisbon}, Portugal | 
| 22.7 | Ordained Priest | Felicissimo Salvini † | Priest | Archbishop of Camerino, Italy | 
| 23.8 | Ordained Priest | Nicolas-Marie Sergent † | Priest | Bishop of Quimper [Cornouailles](-Léon), France | 
| 12 Mar | 66.2 | Ordained Bishop | Jan Antoni de Potoczki † | Bishop of Przemyśl, Poland | 
| 13 Mar | 74.0 | Appointed | Luigi Bottiglia Savoulx † | Titular Archbishop of Perge | Cardinal, Prefect of the Apostolic Signatura | 
| 60.4 | Elevated to Cardinal | Bartolomeo Alberto (Mauro) Cappellari, O.S.B. † | Pope (Roma {Rome}, Italy) | 
| 60.0 | Elevated to Cardinal | Francisco Javier de Cienfuegos y Jovellanos † | Cardinal, Archbishop of Sevilla {Seville}, Spain | 
| 61.0 | Confirmed | Pietro Consiglio † | Bishop of Brindisi, Italy | Archbishop | 
| 60.7 | Appointed | Antonio Fernando José de Echánove y Zaldívar † | Archbishop of Tarragona, Spain | 
| 56.2 | Appointed | Giacomo Giustiniani † | Archbishop (Personal Title) of Imola, Italy | Cardinal, Prefect of the Roman Curia - Other | 
| 75.3 | Confirmed | Pedro Gutiérrez de Cos y Saavedra Seminario † | Bishop of Puerto Rico (Porto Rico) | 
| 56.7 | Confirmed | Pablo Hernández, O.SS.T. † | Bishop of Ceuta, Spain | 
| 65.0 | Elevated to Cardinal | Jean-Baptist-Marie-Anne-Antoine de Latil † | Cardinal, Archbishop of Reims, France | 
| 50.4 | Elevated to Cardinal | Ludovico Micara, O.F.M. Cap. † | Cardinal, Cardinal-Bishop of Ostia (e Velletri) | 
| 48.5 | Appointed | Ramón Montero † | Titular Archbishop of Hierapolis in Phrygia | Archbishop of Burgos, Spain | 
| 38.5 | Confirmed | Andrea Maria Rispoli, C.Ss.R. † | Bishop of Squillace, Italy | 
| 69.4 | Confirmed | Patrício da Silva, O.E.S.A. † | Cardinal, Patriarch of Lisboa {Lisbon}, Portugal | 
| 69.3 | Confirmed | Pietro Tasca † | Bishop of Lipari, Italy | Bishop of Cefalù, Italy | 
| 54.3 | Appointed | Karl Joseph von Aulock † | Auxiliary Bishop of Wrocław (Breslau), Poland | 
| 54.3 | Appointed | Karl Joseph von Aulock † | Titular Bishop of Marocco o Marruecos, Titular Sees | Auxiliary Bishop of Wrocław (Breslau), Poland | 
|  | Born | Joseph Weyland † |  | Bishop of Fulda, Germany | 
| 14 Mar | 50.2 | Appointed | Plácido Sukias de Somal, C.M.V. † | Abbot General of Congregazione Mechitarista di Venezia | 
| 50.2 | Appointed | Plácido Sukias de Somal, C.M.V. † | Titular Archbishop of Siunia | Abbot General of Congregazione Mechitarista di Venezia | 
| 19 Mar | 43.0 | Ordained Bishop | Alexis Billiet † | Bishop of Saint-Jean-de-Maurienne, France | Cardinal, Archbishop of Chambéry, France | 
| 79.7 | Died | Antonio Carrillo Mayoral † | Bishop of Plasencia, Spain | 
|  | Born | Antonio Innocente Giuseppe Fosco † |  | Bishop of Šibenik (Knin), Croatia | 
| 59.9 | Ordained Bishop | Antoine Martinet † | Bishop of Tarentaise, France | Archbishop of Chambéry, France | 
| 25 Mar |  | Born | Luigi Maria (Tommaso Francesco) Bilio, B. † |  | Cardinal, Secretary of the Congregation for Universal Inquisition | 
| 22.6 | Ordained Priest | Vincenzo Maria Marolda, C.Ss.R. † | Priest of Congregation of the Most Holy Redeemer | Bishop of Capaccio e Vallo della Lucania, Italy | 
| 26 Mar |  | Born | William Dominic O’Carroll, O.P. † |  | Coadjutor Archbishop of Port of Spain, Trinidad and Tobago, Antilles | 
| 27 Mar | 38.5 | Ordained Bishop | Andrea Maria Rispoli, C.Ss.R. † | Bishop of Squillace, Italy | 
| Apr |  | Born | Paškal Vujičić (Vujcic), O.F.M. Obs. † |  | Vicar Apostolic of Bosnia (Bosna, Diacovar, Diakovar), Croatia | 
| 2 Apr | 74.1 | Ordained Bishop | Luigi Bottiglia Savoulx † | Titular Archbishop of Perge | Cardinal, Prefect of the Apostolic Signatura | 
|  | Born | Paul Tosi, O.F.M. Cap. † |  | Vicar Apostolic Emeritus of Punjab, India | 
| 23.1 | Ordained Priest | Wacław Żyliński † | Priest | Archbishop of Mohilev, Belarus | 
| 3 Apr | 64.4 | Selected | Hilarión Diéz Fernández, O.S.A. † | Archbishop of Manila, Philippines | 
| 4 Apr | 55.7 | Installed | Kaspar Max Droste zu Vischering † | Bishop of Münster, Germany | 
| 9 Apr | 45.1 | Ordained Bishop | Tomás Díez de Bedoya, O.F.M. Cap. † | Titular Bishop of Cydonia (Agia, Canea) | Auxiliary Bishop of Santiago de Compostela, Spain | 
|  | Born | José Francisco Ezequiel Moreyra † |  | Bishop of Ayacucho o Huamanga (Guamanga), Peru | 
| 53.5 | Ordained Bishop | Jacinto Rodríguez Rico † | Bishop of Teruel, Spain | Bishop of Cuenca, Spain | 
| 14 Apr | 78.0 | Died | Nicola Carelli † | Bishop of Conversano, Italy | 
| 15 Apr |  | Born | Fulgencije Czarev, O.F.M. Obs. † |  | Bishop of Hvar (-Brac e Vis), Croatia | 
| 16 Apr |  | Born | Domenico Bucchi-Accica † |  | Bishop of Orvieto, Italy | 
| 18 Apr | 87.7 | Died | Adeodatus Papikian, C.M.V. † | Titular Bishop of Ejmiacin | 
| 19 Apr | 73.5 | Died | John Milner † | Vicar Apostolic of Midland District, England, Great Britain | 
| 49.5 | Succeeded | Thomas Walsh † | Vicar Apostolic of Midland District, England, Great Britain | Vicar Apostolic of London District, England, Great Britain | 
| 20 Apr |  | Born | John Baptist Butt † |  | Bishop Emeritus of Southwark, England, Great Britain | 
| 23 Apr | 62.4 | Ordained Bishop | Johann Heinrich Milz † | Titular Bishop of Sarepta | Auxiliary Bishop of Trier, Germany | 
| 56.1 | Appointed | Grzegorz Tomasz Ziegler, O.S.B. † | Bishop of Tarnów, Poland | Bishop of Linz, Austria | 
| 24 Apr | 55.3 | Died | Francesco Saverio d’Urso, O.M. † | Bishop of Ugento, Italy | 
| 25 Apr | 62.7 | Ordained Bishop | José Joaquim (José Antonio) de Oliveira Carvalho (da Imaculada Conceição Amarante), O.F.M. Obs. † | Archbishop of Cranganore (Angamala), India | 
| 64.8 | Died | Patrick Maguire, O.F.M. Rec. † | Coadjutor Bishop of Kilmore, Ireland | 
| 28 Apr |  | Born | Johannes Christian Roos † |  | Archbishop of Freiburg im Breisgau, Germany | 
|  | Born | John Vertue (Virtue) † |  | Bishop of Portsmouth, England, Great Britain | 
| 30 Apr | 67.5 | Ordained Bishop | Giovanni Baptist Maria Angelini † | Titular Bishop of Megara |