| Date | Age | Event | Bishop | Title | Current Title |
| unknown | | Died | Dominic Bellew † | Bishop of Killala, Ireland |
| 75.4 | Died | Sandor Bodonyi † | Auxiliary Bishop of Vác, Hungary |
| 66.8 | Resigned | François de Bovet † | Bishop of Sisteron, France | Archbishop Emeritus of Toulouse, France |
| Died | Rocco Coiro † | Bishop of Crotone (Cotrone), Italy |
| 47.2 | Ordained Bishop | Szymon Michal Józef Arnold Giedroyc † | Titular Bishop of Adramyttium | Bishop of Samogizia o Tels (Zmudz), Lithuania |
| Died | Agapios III Matar † | Patriarch of Antiochia {Antioch} (Melkite), Syria |
| Born | David Moriarty † | Ardfert | Bishop of Kerry (o Ardfert) e Aghadoe, Ireland |
| 29.4 | Ordained Priest | Charles-Jean de la Motte de Broons et de Vauvert † | Priest | Bishop of Vannes, France |
| 25.0 | Ordained Priest | Jacques-Léonard Pérocheau, M.E.P. † | Priest of La Société des Missions Etrangères | Vicar Apostolic of Northwestern Szechwan {Se-Ciuen Settentrionale-Occidentale}, China |
| 57.7 | Died | Michele Sanseverino † | Bishop of Gaeta, Italy |
| Appointed | Ignace IV Sarrouf † | Patriarch of Antiochia {Antioch} (Melkite), Syria |
| Died | Ignace IV Sarrouf † | Patriarch of Antiochia {Antioch} (Melkite), Syria |
| 4 Jan | 80.7 | Died | Tommaso Antici † | Cardinal, |
| Born | Alexandre-Hippolyte-Xavier Monnet, C.S.Sp. † | Mouchin, France | Vicar Apostolic of Madagascar, Madagascar |
| 11 Jan | | Born | James Brown † | Wolverhampton | Bishop of Shrewsbury, England, Great Britain |
| Born | Raffaele Pucci-Sisti † | Urbino | Bishop of Montalcino, Italy |
| 18 Jan | | Born | Józef Hollak † | Krawniskiz | Auxiliary Bishop of Senj (-Modruš), Croatia |
| Born | Pedro José de Jesús Loza y Pardavé † | México | Archbishop of Guadalajara, Jalisco, México |
| 81.5 | Died | Joseph-François de Malide † | Bishop of Montpellier, France |
| 26 Jan | 48.3 | Died | Angelo Pietro (Andelo Petar) Galli † | Bishop of Hvar (Lesina), Croatia |
| 29 Jan | | Born | Francisco de Sales Crespo y Bautista † | Toledo | Bishop of Mondoñedo, Spain |
| 30 Jan | | Born | Francesco Maiorsini † | Castel Sant' Agata | Archbishop of Amalfi, Italy |
| 7 Feb | | Born | Hilarion Silani † | Porto di Civitanova | Vicar Apostolic of Colombo, Sri Lanka |
| 10 Feb | 86.0 | Died | Manuel de Santa Catarina, O.C.D. † | Archbishop of Goa, India |
| 42.8 | Succeeded | Manuel Santo Galdino, O.F.M. † | Archbishop of Goa, India |
| 12 Feb | 65.7 | Died | Hilarion-François de Chevigné de Boischollet † | Bishop of Sées, France |
| 22 Feb | 24.3 | Ordained Priest | Louis-Jacques-Maurice de Bonald † | Priest | Cardinal, Archbishop of Lyon (-Vienne), France |
| 22.5 | Ordained Priest | Giusto Recanati, O.F.M. Cap. † | Priest of Order of Friars Minor Capuchin | Cardinal, Cardinal-Priest of Ss. XII Apostoli |
| 26 Feb | 84.9 | Died | Francisco Gabriel de Olivares y Benito † | Bishop of Durango, Durango, México |
| 6 Mar | 24.1 | Ordained Priest | Anton Gottfried Claessen † | Priest of Köln {Cologne}, Germany | Auxiliary Bishop |
| 14 Mar | 24.1 | Ordained Priest | Giuseppe Cosenza † | Priest | Cardinal, Archbishop of Capua, Italy |
| 21 Mar | 23.5 | Ordained Priest | James Kyle † | Priest | Vicar Apostolic of Northern District, Scotland, Great Britain |
| 22 Mar | 59.0 | Died | Benito Lué y Riega † | Bishop of Buenos Aires, Argentina |
| 23 Mar | 63.9 | Died | Custodio de Santa Ana d'Almeida, O.A.D. † | Bishop of São Tomé e Príncipe |
| 26 Mar | 57.1 | Died | Santiago Hernández Milanés † | Bishop of Mérida, Venezuela |
| 27 Mar | | Born | Pietro Anacleto Siboni † | Bacelega | Bishop of Albenga, Italy |
| 28 Mar | | Born | Augustin David † | Lyon | Bishop of Saint-Brieuc (-Tréguier), France |
| 23.4 | Ordained Priest | Petrus Leopold Kaiser † | Priest of Regensburg, Germany | Bishop of Mainz, Germany |
| 3 Apr | | Born | Benito Romero, O.F.M. † | Madridejos, Spain | Bishop of Cebu, Philippines |
| 12 Apr | | Born | Girolamo d’Andrea † | Naples | Cardinal, Prefect Emeritus of the Roman Curia - Other |
| 49.9 | Ordained Bishop | Esprit-Marie-Joseph Florens, M.E.P. † | Titular Bishop of Sozopolis in Haemimonto | Vicar Apostolic of Siam, Thailand |
| 15 Apr | 55.7 | Died | Johann Friedrich Graf von Waldenstein-Wartenberg † | Bishop of Seckau, Austria |
| 16 Apr | | Born | Juraj (Giorgio) Dobrila † | Trieste | Bishop of Trieste-Koper (Capodistria), Italy |
| 19 Apr | 55.5 | Appointed | Simon Melchior de Petris † | Vicar Apostolic of Seckau, Austria | Vicar Apostolic Emeritus |
| 1 May | | Born | Joaquim Moreira Reis, O.S.B. † | São Paio de Guimara | Bishop Emeritus of Angola e Congo, Angola |
| 6 May | | Born | Alessandro Cantoli † | Crecchio | Bishop of Bovino, Italy |
| 8 May | 68.4 | Died | John Douglass † | Vicar Apostolic of London District, England, Great Britain |
| 50.0 | Succeeded | William Poynter † | Vicar Apostolic of London District, England, Great Britain |
| 9 May | | Born | Giovanni Antonio Benini (Bedini) † | Prato | Bishop of Pescia, Italy |
| 10 May | | Born | Fernando Blanco y Lorenzo, O.P. † | Pola de Lena | Archbishop of Valladolid, Spain |
| 12 May | | Born | Lorenzo Nina † | Recanati | Cardinal, Prefect of the Congregation of the Council |
| 17 May | | Born | Juan Bautista de Ormeachea y Ernáez † | México | Bishop of Tulancingo, Hidalgo, México |
| 18 May | | Born | Martin Konrad † | Geismar | Bishop of Paderborn, Germany |
| 20 May | 80.0 | Died | Hieronymus Joseph Franz de Paula Graf Colloredo von Wallsee und Mels † | Archbishop of Salzburg, Austria |
| 57.7 | Appointed | Sigmund Christoph Graf von Waldburg-Zeil-Trauchburg † | Apostolic Administrator of Salzburg, Austria | Bishop Emeritus of Chiemsee, Germany |
| 23 May | 23.6 | Ordained Priest | Jean-Pierre-Marie Cadalen † | Priest of Albi, France | Bishop of Saint-Flour, France |
| 26.9 | Ordained Priest | Romain-Frédéric Gallard † | Priest | Coadjutor Archbishop of Reims, France |
| 30 May | 77.7 | Died | Paolo Girolamo Orengo, Sch. P. † | Bishop of Ventimiglia, Italy |
| 4 Jun | | Born | Pietro Giuseppe de Gaudenzi † | Langosco | Bishop of Vigevano, Italy |
| 14 Jun | 23.6 | Ordained Priest | Jean-Marie Mioland † | Priest of Lyon (-Vienne), France | Archbishop of Toulouse (-Narbonne), France |
| 19 Jun | 62.3 | Died | José Pegado de Azevedo † | Bishop of Angra, Portugal |
| 28 Jun | | Died | John Cruise † | Bishop of Ardagh (and Clonmacnois), Ireland |
| 8 Jul | | Born | Filippo Vespasiani † | Roma | Bishop of Fano, Italy |
| 27 Jul | 72.8 | Died | Klemens Wenzeslaus Herzog von Sachsen † | Bishop of Augsburg, Germany |
| 1 Aug | | Born | Jean-Baptiste-François Pitra, O.S.B. † | Champforgeil | Cardinal, Bishop of Porto e Santa Rufina, Italy |
| 11 Aug | | Born | Alessandro Bonnaz † | Challex, France | Bishop of Csanád, Hungary |
| Born | Joseph Projectus Machebeuf (Macheboeuf) † | Riom, France | Bishop of Denver, Colorado, USA |
| Born | Antonio Pellegrini † | Rome | Cardinal, Priest of the Roman Curia - Other |
| 13 Aug | | Born | José Hipólito Salas y Toro † | El Olivar | Bishop of Concepción, Chile |
| 18 Aug | 46.6 | Appointed | Louis-Guillaume-Valentin Dubourg, P.S.S. † | Apostolic Administrator of Louisiana and the Two Floridas (Saint Louis of New Orleans), USA | Archbishop of Besançon, France |
| 28 Aug | | Born | Antonio da Trindade de Vasconcellos Pereira de Melo † | Friguiro | Bishop of Lamego, Portugal |
| Sep | 37.8 | Ordained Priest | Ignaz Heinrich von Wessenberg † | Priest of Konstanz {Constance}, Germany | Vicar Apostolic Emeritus |
| 5 Sep | 65.8 | Died | Girolamo della Porta † | Cardinal, Prefect of the Roman Curia - Other |
| 86.7 | Died | Pierre-Joseph de Lastic-Lescure † | Bishop Emeritus of Rieux, France |
| 6 Sep | | Born | Etienne-Emile Ramadié † | Montpellier | Archbishop of Albi, France |
| 64.0 | Died | Aurelio Roverella † | Cardinal, Bishop of Palestrina, Italy |
| 9 Sep | | Born | Jacinto Maria Martínez y Sáez, O.F.M. Cap. † | Peñacerrado, Spain | Bishop of San Cristobal de la Habana, Cuba |
| 13 Sep | | Born | Girolamo Paolo Hindi † | Diarbechir | Bishop of Gazireh (Gezira) (Chaldean), Turkey |
| 18 Sep | | Born | François Baudichon † | Sainte-Maure-de-Touraine, France | Vicar Apostolic Emeritus of Marquesas Islands {Isole Marchesi}, French Polynesia, Pacific (Oceania) |
| 29 Sep | | Born | Enrico Bindi † | Canapale | Archbishop of Siena, Italy |
| 4 Oct | | Born | Luigi Biscioni (Bisconi) Amadori † | Valle di Calci | Bishop Emeritus of Sansepolcro (Borgo San Sepolcro), Italy |
| Born | José Raimundo Benito Villamitjana Vila † | San Vicente de Torelló | Archbishop of Tarragona, Spain |
| 8 Oct | | Born | Friedrich von Fürstenberg † | Vienna, Italy | Cardinal, Archbishop of Olomouc, Czech Republic |
| 15 Oct | | Died | José Calvo, O.P. † | Vicar Apostolic of Fo-Kien, China |
| 52.8 | Succeeded | Roque José Carpena Díaz, O.P. † | Vicar Apostolic of Fo-Kien, China | Vicar Apostolic of Foreign Vicariate |
| 18 Oct | | Born | Andrea Formica † | Castagnole Lanze | Bishop of Cuneo, Italy |
| 19 Oct | 78.8 | Died | Pierre-Marie-Madeleine Cortois de Balore † | Bishop of Nimes, France |
| 29 Oct | | Born | Jean-Benoît Truffet, C.S.Sp. † | Rumilly-en-Albanais, France | Vicar Apostolic of Two Guineas {Des Deux Guinées}, Gabon |
| 1 Nov | | Born | John Bernard Fitzpatrick † | Boston | Bishop of Boston, Massachusetts, USA |
| 4 Nov | | Born | James Alypius Goold, O.S.A. † | Cork, Ireland | Archbishop of Melbourne, Australia |
| 15 Nov | | Born | Aimé-Victor-François Guilbert † | Cerisy-la-Forêt | Cardinal, Archbishop of Bordeaux, France |
| 17 Nov | | Born | Carlo de Caprio † | Casanova | Bishop of Sessa Aurunca, Italy |
| 23 Nov | | Born | Arsenio Avak-Wartan Angiarakian † | Costantinopoli | Archbishop Emeritus of Tokat degli Armeni |
| 29 Nov | 67.2 | Died | Klaus Münst, O.F.M. Cap. † | Titular Bishop of Myndus |
| 7 Dec | | Born | Elia Antonio Alberini, O.C.D. † | Faenza | Bishop of Ascoli Piceno, Italy |
| 13 Dec | | Born | Francesco Petagna † | Napoli | Bishop of Castellammare di Stabia, Italy |
| 16 Dec | | Born | Michael Angelus Jacobi (Jacopi), O.F.M. Cap. † | Serravezza | Archbishop of Agra, India |
| 20 Dec | 76.8 | Died | Benedetto Fenaja, C.M. † | Titular Archbishop of Philippi |
| 24 Dec | | Born | Adam Jasinski † | Dytiatyn k. Brzezan | Bishop of Przemyśl, Poland |