| Date | Age | Event | Bishop | Title | Current Title |
| unknown | 23.1 | Professed | Jean-Baptiste Anouilh, C.M. † | Member of Congregation of the Mission | Vicar Apostolic of Southwestern Chi-Li {Ce-Li Meridio-Occidentale}, China |
| 25.9 | Ordained Priest | Gabino Catalina y del Amo † | Priest | Bishop of Calahorra y La Calzada, Spain |
| 26.9 | Professed | Joseph-Marie Chauveau, M.E.P. † | Priest of La Société des Missions Etrangères | Vicar Apostolic of Thibet, China |
| Born | Vartan Estegar, C.A.M. † | Szamos-Ujvarien | Abbot Primate of Congregazione Mechitarista di Venezia |
| 65.3 | Died | Hector Joubert, P.S.S. † | Titular Bishop of Elusa |
| 22.4 | Ordained Priest | Ludovico Marangoni, O.F.M. Conv. † | Priest of Order of Friars Minor Conventual | Bishop of Chioggia, Italy |
| 71.0 | Resigned | Giovanni Stephano Masala † | Bishop-Elect of Iglesias, Italy | Former Bishop-Elect |
| 19.8 | Professed | Joseph Paccolat, C.R.A. † | Member of Swiss Congregation of Canons Regular of Saint Maurice of Agaune | Abbot of Saint-Maurice, Switzerland |
| 88.0 | Died | Pietro Luigi Scarabelli, C.M. † | Bishop Emeritus of Luni, Sarzana e Brugnato, Italy |
| 2 Jan | | Born | Mathieu Sislian † | Marasc | Bishop Emeritus of Cesarea di Cappadocia (Armenian), Turkey |
| 3 Jan | 73.5 | Died | Giuseppe de Belánsky † | Bishop of Banská Bystrica, Slovakia |
| Born | Filemón Cabanillas † | Punilla | Auxiliary Bishop of Córdoba (Tucumán), Argentina |
| Born | Henry O’Neill † | Dromore | Bishop of Dromore, Ireland |
| Born | Julian Pełesz † | Smerekowiec | Bishop of Przemyśl, Sambor, et Sanok (Ruthenian), Poland |
| 5 Jan | 24.6 | Ordained Priest | Michael Flannery † | Priest of Dublin, Ireland | Bishop of Killaloe, Ireland |
| Born | Gallicano Mergè † | Gallicano | Auxiliary Bishop of Palestrina, Italy |
| 6 Jan | 66.9 | Died | Giulio de Tommasi † | Bishop of San Severo, Italy |
| 8 Jan | 59.5 | Ordained Bishop | Jacopo De’ Foretti † | Bishop of Chioggia, Italy |
| 50.4 | Ordained Bishop | Federico Manfredini † | Titular Bishop of Famagusta | Bishop of Padova {Padua}, Italy |
| 10 Jan | | Born | Angus MacFarlane † | Spean Bridge, Lochaber | Bishop of Dunkeld, Scotland, Great Britain |
| 12 Jan | | Born | Domenico Darmanin † | Corfù | Archbishop of Corfù, Greece |
| 13 Jan | 41.1 | Resigned | Gabriel della Genga Sermattei † | Archbishop of Ferrara, Italy | Cardinal, Prefect of the Roman Curia - Other |
| 14 Jan | 56.0 | Appointed | Raffaele Fornari † | Apostolic Nuncio to France | Cardinal, Prefect of the Congregation for Studies |
| 19 Jan | | Born | Giuseppe Salvatore Scatti † | Lecco | Bishop of Savona e Noli, Italy |
| 63.8 | Died | Bruno Maria Tedeschi † | Bishop of Rossano, Italy |
| 20 Jan | | Born | Frederick Eis † | Arbach, Germany | Bishop Emeritus of Sault Sainte Marie and Marquette, Michigan, USA |
| 21 Jan | | Born | Joaquín Pardo y Vergara † | Bogota | Archbishop of Medellín, Colombia |
| 24 Jan | | Born | Lorenzo Antonelli † | Tremonti | Bishop of Venosa, Italy |
| Born | Josef Stadler † | Slavonski Brod ad Savum | Archbishop of Vrhbosna {Sarajevo}, Bosnia and Herzegovina |
| 26 Jan | | Born | Václav Antonin Frind † | Lipová [Hainspach] | Auxiliary Bishop of Praha {Prague}, Czech Republic |
| 27 Jan | 48.2 | Elevated to Cardinal | Ignazio Giovanni Cadolini † | Cardinal, Archbishop of Ferrara, Italy |
| 61.8 | Appointed | Kaspar de Carl ab Hobenbalken † | Coadjutor Bishop of Chur-Sankt Gallen, Switzerland | Bishop of Chur, Switzerland |
| 61.8 | Appointed | Kaspar de Carl ab Hobenbalken † | Titular Bishop of Hippos | Bishop of Chur, Switzerland |
| 55.1 | Appointed | Giovanni Battista Ciofi † | Bishop of Chiusi e Pienza, Italy |
| 40.8 | Appointed | Jorge de Viteri y Ungo † | Bishop of San Salvador, El Salvador | Bishop of Nicaragua |
| 38.2 | Confirmed | Paul-Georges-Marie Dupont des Loges † | Bishop of Metz, France |
| 46.8 | Confirmed | Dominique-Augustin Dufêtre † | Bishop of Nevers, France |
| 55.5 | Confirmed | Jean-Jacques Fayet † | Bishop of Orléans, France |
| 54.9 | Appointed | Adriano Fieschi † | Cardinal-Deacon of Santa Maria ad Martyres | Cardinal, Cardinal-Priest of Santa Maria della Vittoria |
| 57.8 | Appointed | Francisco de Paul García Peláez † | Coadjutor Archbishop of Guatemala | Archbishop |
| 57.8 | Appointed | Francisco de Paul García Peláez † | Titular Archbishop of Bostra | Archbishop of Guatemala |
| 33.4 | Confirmed | Giacomo Filippo Gentile † | Bishop of Novara, Italy |
| 48.3 | Confirmed | Jean-Nicaise Gros † | Bishop of Saint-Dié, France | Bishop of Versailles, France |
| 46.9 | Confirmed | Jean-Joseph-Marie-Eugène de Jerphanion † | Archbishop of Albi, France |
| 78.2 | Confirmed | Joseph Knauer † | Bishop of Wrocław (Breslau), Poland |
| 80.2 | Appointed | Paolo Mangelli Orsi † | Cardinal-Deacon of Santa Maria della Scala | Cardinal, Priest of the Roman Curia - Other |
| 80.2 | Elevated to Cardinal | Paolo Mangelli Orsi † | Cardinal, Priest of the Roman Curia - Other |
| 47.1 | Confirmed | François-Nicholas-Madeleine Morlot † | Archbishop of Tours, France | Cardinal, Archbishop of Paris, France |
| 62.7 | Appointed | Giovanni Tommaso Neuschel † | Bishop of Parma, Italy | Bishop Emeritus |
| 32.9 | Appointed | Vincenzo Gioacchino Raffaele Luigi Pecci † | Titular Archbishop of Tamiathis | Pope (Roma {Rome}, Italy) |
| 53.1 | Confirmed | Louis Rendu † | Bishop of Annecy, France |
| 52.4 | Appointed | Claudio Samuelli † | Bishop of Montepulciano, Italy |
| 56.3 | Appointed | Giovanni Serafini † | Cardinal-Deacon of Santi Vito, Modesto e Crescenzia | Cardinal, Priest of the Roman Curia - Other |
| 56.3 | Elevated to Cardinal | Giovanni Serafini † | Cardinal, Priest of the Roman Curia - Other |
| 76.5 | Appointed | Giovanni Giacomo Sinibaldi † | Titular Patriarch of Constantinople | President of Pontifical Ecclesiastical Academy, Roman Curia |
| 51.6 | Appointed | Pedro Antonio Torres † | Bishop of Cuenca, Ecuador | Bishop of Popayán, Colombia |
| 62.9 | Appointed | Francesco di Paola Villadecani † | Cardinal-Priest of Santi Bonifacio ed Alessio | Cardinal, Archbishop of Messina, Italy |
| 62.9 | Elevated to Cardinal | Francesco di Paola Villadecani † | Cardinal, Archbishop of Messina, Italy |
| 28 Jan | 32.9 | Appointed | Vincenzo Gioacchino Raffaele Luigi Pecci † | Apostolic Nuncio to Belgium | Pope (Roma {Rome}, Italy) |
| 29 Jan | 40.8 | Ordained Bishop | Jorge de Viteri y Ungo † | Bishop of San Salvador, El Salvador | Bishop of Nicaragua |
| 30 Jan | 73.1 | Appointed | Salvador de Apodaca y Loreto † | Bishop of Linares o Nueva León, Nuevo León, México |
| 42.4 | Confirmed | Pietro-Raffaele Arduini, O.F.M. Conv. † | Bishop of Alghero, Italy |
| 52.4 | Confirmed | Manfredo Giovanni Battista Bellati † | Bishop of Ceneda, Italy |
| 72.6 | Confirmed | Anton Alois Buchmayer † | Bishop of Sankt Pölten, Austria |
| 48.2 | Appointed | Ignazio Giovanni Cadolini † | Cardinal, Archbishop of Ferrara, Italy |
| 48.2 | Appointed | Ignazio Giovanni Cadolini † | Cardinal-Priest of Santa Susanna | Cardinal, Archbishop of Ferrara, Italy |
| 48.5 | Confirmed | Vasile Erdély † | Bishop of Oradea Mare {Gran Varadino} (Romanian), Romania |
| 64.8 | Appointed | Attilio Fiascaini † | Bishop of Arezzo, Italy |
| 49.8 | Confirmed | Jozef Gaganecz † | Bishop of Prešov (Prjašev) (Slovakian), Slovakia | Bishop of Prešov (Prjašev) (Slovakian), Slovakia |
| 44.3 | Confirmed | Toma Jedrlinić † | Bishop of Dubrovnik (Ragusa), Croatia |
| 54.0 | Appointed | Vincenzo Menchi † | Bishop of Fiesole, Italy |
| 63.5 | Appointed | José Dominico Sánchez † | Titular Bishop of Macri |
| 69.7 | Confirmed | Hermann von Vicari † | Archbishop of Freiburg im Breisgau, Germany |
| Feb | 60.3 | Died | Pedro Alcántara Jiménez, O. Praem. † | Vicar Apostolic of Montevideo, Uruguay |
| 2 Feb | | Born | Luigi Maria Canestrari † | Rotella | Auxiliary Bishop of Ostia (-Velletri), Italy |
| 24.4 | Ordained Priest | Ignace George Chelhot (Scelhot) † | Priest | Patriarch of Antiochia {Antioch} (Syrian), Lebanon |
| 3 Feb | 20.7 | Solemn Professed | Giovanni Battista Mantovano, O.M. † | Member of Order of the Minims | Coadjutor Bishop Emeritus of Bova, Italy |
| 5 Feb | 22.6 | Ordained Priest | Giovanni Maria Berengo † | Priest | Archbishop of Udine, Italy |
| 55.1 | Ordained Bishop | Giovanni Battista Ciofi † | Bishop of Chiusi e Pienza, Italy |
| 52.4 | Ordained Bishop | Claudio Samuelli † | Bishop of Montepulciano, Italy |
| 6 Feb | | Died | Jacob Petros VII Holassian † | Patriarch of Cilicia (Armenian), Lebanon |
| 7 Feb | | Born | Théodore Jean Nersciabuh † | Gapan-Maden | Archbishop Emeritus of Foreign Archdiocese |
| 10 Feb | 54.8 | Selected | László Bémer de Bezdéd et Kis-Báka † | Bishop of Oradea Mare {Gran Varadino, Nagyvárad}, Romania | Bishop Emeritus |
| Born | John Conmy † | Corballa | Bishop of Killala, Ireland |
| 13 Feb | | Born | Giuseppe Antonio Zucchetti, O.F.M. Cap. † | Milano, Italy | Archbishop Emeritus of Izmir (Smirne), Turkey |
| 15 Feb | | Born | Paolo Emio Bergamaschi † | Pontecorvo | Bishop Emeritus of Troia, Italy |
| 16 Feb | 45.0 | Selected | Giovanni Battista Montixi † | Bishop of Iglesias, Italy |
| 19 Feb | 33.0 | Ordained Bishop | Vincenzo Gioacchino Raffaele Luigi Pecci † | Titular Archbishop of Tamiathis | Pope (Roma {Rome}, Italy) |
| 20 Feb | 48.1 | Appointed | Patrick Phelan, P.S.S. † | Auxiliary Bishop of Kingston, Ontario, Canada | Bishop |
| 48.1 | Appointed | Patrick Phelan, P.S.S. † | Titular Bishop of Carrhae | Bishop of Kingston, Ontario, Canada |
| 21 Feb | 24.6 | Ordained Priest | Peter McIntyre † | Priest | Bishop of Charlottetown, Prince Edward Island, Canada |
| 23 Feb | | Born | Luigi Finoja † | Napoli | Bishop Emeritus of Catanzaro, Italy |
| 85.1 | Died | Francesco Tola † | Bishop of Bosa, Italy |
| 24 Feb | 73.2 | Died | Giacomo Giustiniani † | Cardinal, Prefect of the Roman Curia - Other |
| 26 Feb | 36.2 | Ordained Bishop | Tomás Badía, O.P. † | Titular Bishop of Isauropolis | Coadjutor Vicar Apostolic of Fo-Kien, China |
| 55.6 | Ordained Bishop | Jean-Jacques Fayet † | Bishop of Orléans, France |
| 54.5 | Selected | Giuseppe Godeassi † | Archbishop of Zadar (Zara), Croatia |
| 48.4 | Ordained Bishop | Jean-Nicaise Gros † | Bishop of Saint-Dié, France | Bishop of Versailles, France |
| 27 Feb | | Born | Giovanni Gigante † | Napoli | Auxiliary Bishop of Lecce, Italy |
| 5 Mar | 38.3 | Ordained Bishop | Paul-Georges-Marie Dupont des Loges † | Bishop of Metz, France |
| 6 Mar | | Born | Braulio Orúe y Vivanco † | La Habana | Bishop of Pinar del Rio, Cuba |
| 9 Mar | 47.0 | Installed | Jean-Joseph-Marie-Eugène de Jerphanion † | Archbishop of Albi, France |
| 11 Mar | 24.4 | Ordained Deacon | Gaetano Alimonda † | Deacon of Genova, Italy | Cardinal, Archbishop of Torino {Turin}, Italy |
| 25.1 | Ordained Deacon | Franz de Paula Albert Eder, O.S.B. † | Deacon of Order of Saint Benedict | Archbishop of Salzburg, Austria |
| 61.0 | Appointed | Angelo Mai † | Prefect of the Roman Curia - Other | Cardinal, Librarian of the Vatican Library |
| 50.5 | Appointed | Mario Mattei † | Archpriest of the Basilica di San Pietro in Vaticano {Saint Peter Basilica} | Cardinal, Bishop of Ostia (-Velletri), Italy |
| 12 Mar | 46.9 | Ordained Bishop | Dominique-Augustin Dufêtre † | Bishop of Nevers, France |
| 13 Mar | 44.0 | Selected | Giuseppe Maria d’Alessandro † | Bishop of Capaccio, Italy | Bishop of Sessa Aurunca, Italy |
| 55.4 | Selected | Luigi Giamporcaro † | Bishop of Lacedonia, Italy | Bishop of Monopoli, Italy |
| 39.3 | Selected | Rocco de Gregorio † | Bishop of San Severo, Italy |
| 42.2 | Selected | Giuseppe Iannuzzi † | Bishop of Lucera, Italy |
| 68.7 | Selected | Giuseppe Palma, O. Carm. † | Bishop of Avellino, Italy |
| 53.2 | Selected | Raffaele Purpo † | Bishop of Pozzuoli, Italy |
| 57.9 | Selected | Michel’ Angelo Sorrentino † | Bishop of Marsi, Italy |
| 14 Mar | 48.1 | Appointed | Gabriele Ferretti † | Prefect of the Congregation for Indulgences and Relics | Cardinal, Secretary Emeritus of the Secretariat of State |
| 15 Mar | | Born | Giovanni Maria Camilleri, O.S.A. † | La Valletta | Bishop Emeritus of Gozo, Malta |
| 20 Mar | | Born | Francisco Jarrín y Moro † | Salamanca | Bishop of Plasencia, Spain |
| 21 Mar | 33.5 | Appointed | Giuseppe Maria Alberti † | Coadjutor Bishop of Syros (e Milos), Greece | Bishop |
| 33.5 | Appointed | Giuseppe Maria Alberti † | Titular Bishop of Eumenia | Bishop of Syros (e Milos), Greece |
| 46.9 | Installed | Dominique-Augustin Dufêtre † | Bishop of Nevers, France |
| 22 Mar | | Born | José Terrés, O.P. † | San Estebán de Granollers, Spain | Vicar Apostolic of Eastern Tonking {Tonkino Orientale}, Viêt Nam |
| 23 Mar | 48.5 | Installed | Jean-Nicaise Gros † | Bishop of Saint-Dié, France | Bishop of Versailles, France |
| 24 Mar | | Born | Giovanni Battista Carnevalini † | Roma | Bishop of Civita Castellana, Orte e Gallese, Italy |
| Born | Alphonse-Gabriel-Pierre Foucault † | Senonches | Bishop of Saint-Dié, France |
| 26 Mar | | Born | Bonaventura Gargiulo, O.F.M. Cap. † | Maiano | Bishop of San Severo, Italy |
| 69.8 | Installed | Hermann von Vicari † | Archbishop of Freiburg im Breisgau, Germany |
| 27 Mar | 58.6 | Died | Angel Mariano de Morales y Jasso † | Bishop of Antequera, Oaxaca, México |
| 31 Mar | | Born | Marie-Simon-Henri Colomb † | Valence | Bishop of Evreux, France |
| 1 Apr | 22.7 | Ordained Priest | Alexandre-Léopold Sebaux † | Priest | Bishop of Angoulême, France |
| 24.8 | Ordained Priest | Raphael Valenza † | Priest | Auxiliary Bishop of Chieti, Italy |
| 24.5 | Ordained Priest | Domenico Maria Villa † | Priest | Bishop of Parma, Italy |
| 3 Apr | 55.0 | Confirmed | László Bémer de Bezdéd et Kis-Báka † | Bishop of Oradea Mare {Gran Varadino, Nagyvárad}, Romania | Bishop Emeritus |
| 72.8 | Confirmed | Pedro Paulo de Figuereido da Cunha e Melo † | Cardinal, Archbishop of Braga, Portugal |
| 50.2 | Confirmed | Guilherme Henriques de Carvalho † | Bishop of Leiria, Portugal | Cardinal, Patriarch of Lisboa {Lisbon}, Portugal |
| 68.8 | Confirmed | Giuseppe Palma, O. Carm. † | Bishop of Avellino, Italy |
| 53.3 | Confirmed | Raffaele Purpo † | Bishop of Pozzuoli, Italy |
| 61.2 | Appointed | Tommaso Riario Sforza † | Chamberlain (Camerlengo) of the Apostolic Chamber | Cardinal, Priest of the Roman Curia - Other |
| 77.2 | Confirmed | Francisco de São Luiz (Manoel Justiniano) Saraiva, O.S.B. † | Cardinal, Patriarch of Lisboa {Lisbon}, Portugal |
| 33.8 | Appointed | Vincenzo Tizzani, C.R.L. † | Bishop of Terni, Italy | Bishop Emeritus |
| 53.8 | Appointed | Letterio Turchi † | Bishop of Norcia, Italy | Bishop of Città di Castello, Italy |
| 5 Apr | 66.3 | Selected | Nicolaus Rodrigues Pereira de Borja, C.M. † | Bishop of Macau, China | Bishop-Elect |
| 7 Apr | | Born | Matthew Gaughren, O.M.I. † | Stillorgan, Ireland | Vicar Apostolic of Kimberley in Orange, South Africa |
| 46.3 | Appointed | Paolo Sardi, O.F.M. Conv. † | Titular Bishop of Vera |
| 9 Apr | 53.3 | Ordained Bishop | Louis Rendu † | Bishop of Annecy, France |
| 10 Apr | 72.8 | Ordained Bishop | Pedro Paulo de Figuereido da Cunha e Melo † | Cardinal, Archbishop of Braga, Portugal |
| 15 Apr | 23.8 | Ordained Priest | William Smith † | Priest | Archbishop of Saint Andrews and Edinburgh, Scotland, Great Britain |
| 16 Apr | 33.6 | Ordained Bishop | Giuseppe Maria Alberti † | Titular Bishop of Eumenia | Bishop of Syros (e Milos), Greece |
| Born | Manuel Baptista da Costa (da Cunha) † | Paradela | Archbishop of Braga, Portugal |
| Born | Josephus Hubertus Drehmanns † | Roermond | Bishop of Roermond, Netherlands |
| 18 Apr | 33.8 | Ordained Bishop | Vincenzo Tizzani, C.R.L. † | Bishop of Terni, Italy | Bishop Emeritus |
| 53.9 | Ordained Bishop | Letterio Turchi † | Bishop of Norcia, Italy | Bishop of Città di Castello, Italy |
| 19 Apr | 73.7 | Died | Johann Theodor van der Noot † | Vicar Apostolic Emeritus of Luxembourg |
| 22 Apr | | Born | François-Xavier Schoepfer † | Wettolsheim | Bishop of Tarbes et Lourdes, France |
| 23 Apr | 78.4 | Ordained Bishop | Joseph Knauer † | Bishop of Wrocław (Breslau), Poland |
| 68.8 | Ordained Bishop | Giuseppe Palma, O. Carm. † | Bishop of Avellino, Italy |
| 26.1 | Ordained Priest | Pierre Rougeyron, S.M. † | Priest of Society of Mary | Vicar Apostolic Emeritus of Nouvelle-Calédonie, New Caledonia, Pacific (Oceania) |
| 25 Apr | 42.5 | Selected | José Maria da Silva Torres, O.S.B. † | Archbishop of Goa, India | Coadjutor Bishop Emeritus of Braga, Portugal |
| 30 Apr | 72.9 | Installed | Anton Alois Buchmayer † | Bishop of Sankt Pölten, Austria |
| 23.3 | Ordained Deacon | Sebastião Dias Laranjeira † | Deacon | Bishop of São Pedro do Rio Grande do Sul, Brazil |
| 46.3 | Ordained Bishop | Paolo Sardi, O.F.M. Conv. † | Titular Bishop of Vera |