| Date | Age | Event | Bishop | Title | Current Title |
| unknown | 28.6 | Ordained Priest | Pedro Felipe de Azúa e Iturgoyen † | Priest of Santiago de Chile | Archbishop Emeritus of Santafé en Nueva Granada, Colombia |
| Resigned | Antoine-Jérôme Boyvin de Vaurouy † | Bishop-Elect of Perpignan-Elne, France | Bishop-Elect Emeritus |
| Died | Antonio Maria Brancaccio † | Archbishop of Acerenza e Matera, Italy |
| 63.4 | Died | Juan Bravo Otálora de Lagunas † | Bishop of Arequipa, Peru |
| Died | Vincenzo Capece † | Archbishop of Chieti, Italy |
| Born | Charles-Bernard-Collin de Contrisson † | Toul | Auxiliary Bishop of Laon, France |
| Appointed | Biagio o Blasio De Dura † | Bishop of Potenza, Italy |
| Born | Charles-Antoine-Gabriel d'Osmond de Médavy † | Médavy | Bishop Emeritus of (Saint-Bernard de) Comminges, France |
| Born | Claude-François-Ignace Franchet de Ran † | Besançon | Auxiliary Bishop of Besançon, France |
| 48.0 | Appointed | Stanisław Józef Hozjusz † | Bishop of Kamyanets-Podilskyi, Ukraine | Bishop of Poznań, Poland |
| Died | Mateo Panduro y Villafaña † | Bishop of La Paz, Bolivia |
| Died | Carlo Pignatelli † | Bishop of Potenza, Italy |
| Born | Domingos da Encarnação Pontevel, O.P. † | Santarem | Bishop of Mariana, Brazil |
| Born | Bertrand Reydellet, M.E.P. † | Le Grand-Abergement, France | Vicar Apostolic of Western Tonking {Tonkino Occidentale}, Viêt Nam |
| 22.5 | Ordained Priest | Philipp Ludwig Reichsgraf von Sinzendorf † | Priest of Salzburg, Austria | Cardinal, Bishop of Wrocław, Poland |
| 35.0 | Appointed | Silvestro Stanà (Staria) † | Bishop of Minori, Italy | Bishop Emeritus |
| Born | Louis-Jérême de Suffren de Saint-Tropez † | Arles | Bishop of Nevers, France |
| Died | Piotr Tarlo † | Bishop of Poznań, Poland |
| Died | Asdrubale Termini † | Bishop of Siracusa, Italy |
| Died | Raffaele Tosti † | Bishop of Minori, Italy |
| Jan | 68.1 | Died | Nicola Centomani † | Bishop of Monopoli, Italy |
| 6 Jan | | Born | Andrea Gioannetti, O.S.B. † | Bologna | Cardinal, Archbishop of Bologna, Italy |
| 11 Jan | 39.0 | Ordained Bishop | Léonor III de Goyon de Matignon † | Bishop of Coutances, France |
| 13 Jan | | Born | Krysztof Hilary Szembek † | Biała | Bishop of Płock, Poland |
| Born | Charles Walmesley, O.S.B. † | Wigan Lane House, Standish | Vicar Apostolic of Western District, England, Great Britain |
| 14 Jan | | Confirmed | Antoine-François de Bliterswyck de Montcley † | Bishop of Autun, France | Archbishop of Besançon, France |
| 57.8 | Installed | Armand-Pierre de la Croix de Castries † | Archbishop of Albi, France |
| 45.6 | Confirmed | Johann Moritz Gustav Reichsgraf von Manderscheid-Blankenheim † | Bishop of Wiener Neustadt, Austria | Archbishop of Praha {Prague}, Czech Republic |
| Installed | Henri de Nesmond † | Archbishop of Toulouse, France |
| 23.8 | Confirmed | Charles de Saint-Albin † | Bishop of Laon, France | Archbishop of Cambrai, France |
| 15 Jan | 59.9 | Died | Konrad Ferdinand Geist von Wildegg † | Auxiliary Bishop of Konstanz {Constance}, Germany |
| 20 Jan | | Ordained Bishop | Dominique-Laurent de Balbe de Berton de Crillon † | Bishop of Glandèves, France |
| 21 Jan | | Died | Antonio de Zuloaga † | Archbishop of Lima, Peru |
| 1 Feb | 38.1 | Ordained Bishop | Louis-Jacques Chapt de Rastignac † | Bishop of Tulle, France | Archbishop of Tours, France |
| 8 Feb | 49.0 | Ordained Bishop | Wenzel Franz Karl Reichsfreiherr Koschinsky von Koschín † | Bishop of Hradec Králové, Czech Republic |
| 43.1 | Ordained Bishop | Manuel Samaniego Jaca † | Archbishop of Tarragona, Spain | Archbishop Emeritus of Burgos, Spain |
| 13 Feb | | Born | Alexander Franz Joseph Graf Engl von und zu Wagrain † | Füssen, Germany | Bishop of Leoben, Austria |
| 21 Feb | | Appointed | Onofrio Elisei † | Bishop of Orvieto, Italy |
| 26 Feb | 66.3 | Died | Francisco Rodríguez Mendarozqueta y Zárate † | Bishop of Sigüenza, Spain |
| 28 Feb | | Born | Johann Hildebrand Roten † | Raron | Bishop of Sion {Sitten}, Switzerland |
| 1 Mar | 71.7 | Died | Louis-Joseph Adhémar de Monteil de Grignan † | Bishop of Carcassonne, France |
| Succeeded | Louis-Joseph de Châteauneuf de Rochebonne † | Bishop of Carcassonne, France |
| 2 Mar | 50.2 | Appointed | Sebastián Foronda, O.S.A. † | Apostolic Administrator of Cebu, Philippines |
| 50.2 | Appointed | Sebastián Foronda, O.S.A. † | Titular Bishop of Calydon | Apostolic Administrator of Cebu, Philippines |
| 5 Mar | | Born | Juan Molina Lario y Navarro † | Camañas | Bishop of Málaga, Spain |
| 15 Mar | 46.2 | Ordained Bishop | Denis-Alexandre Le Blanc † | Bishop of Sarlat, France |
| 23 Mar | 50.4 | Appointed | Henri-Osvald de La Tour d'Auvergne de Bouillon † | Archbishop of Vienne, France | Cardinal, Archbishop Emeritus |
| 26 Mar | 74.1 | Ordained Priest | Francisco Ignacio Añoa Busto † | Priest | Archbishop of Zaragoza, Spain |
| 2 Apr | | Confirmed | Joseph-Alphonse de Valbelle de Tourves † | Coadjutor Bishop of Saint-Omer, France | Bishop |
| 13 Apr | 49.3 | Died | Pedro de Tapiz y Garcia † | Bishop of Durango, Durango, México |
| Appointed | Filippo Valignani, O.P. † | Archbishop of Chieti, Italy |
| 16 Apr | 49.3 | Appointed | Pedro de Tapiz y Garcia † | Bishop of Guadalajara, Jalisco, México | Bishop of Durango, Durango, México |
| 20 Apr | 52.5 | Appointed | Bogusław Korwin Gosiewski † | Auxiliary Bishop of Vilnius, Lithuania | Bishop of Smoleńsk, Poland |
| 52.5 | Appointed | Bogusław Korwin Gosiewski † | Titular Bishop of Achantus | Bishop of Smoleńsk, Poland |
| 44.4 | Appointed | Johann Michael Wenzel Reichsgraf von Spaur † | Auxiliary Bishop of Trento, Italy |
| 44.4 | Appointed | Johann Michael Wenzel Reichsgraf von Spaur † | Titular Bishop of Rhosus | Auxiliary Bishop of Trento, Italy |
| 26 Apr | 24.1 | Ordained Bishop | Charles de Saint-Albin † | Bishop of Laon, France | Archbishop of Cambrai, France |
| 29 Apr | | Born | Francesco Carafa della Spina di Traetto † | Naples | Cardinal, Prefect of the Congregation of Bishops and Regulars |
| 67.0 | Died | Felipe Antonio Gil Taboada † | Archbishop of Sevilla {Seville}, Spain |
| 1 May | | Born | Agustín Vázquez Varela, O. Cist. † | Novelúa | Bishop of Solsona, Spain |
| 3 May | 45.0 | Installed | Johann Adam Reichsgraf von Wratislaw von Mitrowitz † | Bishop of Litomĕrice, Czech Republic |
| 9 May | 21.7 | Appointed | Clemens August Maria Herzog von Bayern † | Coadjutor Archbishop of Köln {Cologne}, Germany | Archbishop |
| 10 May | 50.5 | Ordained Bishop | Henri-Osvald de La Tour d'Auvergne de Bouillon † | Archbishop of Vienne, France | Cardinal, Archbishop Emeritus |
| 18 May | 45.7 | Appointed | Damian Hugo Philipp Reichsgraf von Schönborn Bushein † | Coadjutor Bishop of Konstanz {Constance}, Germany | Cardinal, Bishop of Speyer, Germany |
| 20 May | | Appointed | Giuseppe Maria Martelli † | Archbishop of Firenze {Florence}, Italy | Archbishop Emeritus |
| 22 May | | Born | Felipe José de Tres-Palacios y Verdeja † | Avilés, Spain | Bishop of San Cristobal de la Habana, Cuba |
| 24 May | 44.5 | Ordained Bishop | Johann Michael Wenzel Reichsgraf von Spaur † | Titular Bishop of Rhosus | Auxiliary Bishop of Trento, Italy |
| 26 May | 65.2 | Ordained Bishop | Juan Álvaro Cienfuegos Villazón, S.J. † | Bishop of Catania, Italy | Cardinal, Archbishop of Monreale, Italy |
| 1 Jun | 57.4 | Appointed | Juan Fernández Zapata † | Bishop of Mallorca, Spain | Bishop of León, Spain |
| 46.0 | Appointed | Sigismund Graf Kollonitsch † | Cardinal, Archbishop of Wien {Vienna}, Austria |
| 69.2 | Died | Egidio Quinto † | Archbishop of Bar (Antivari), Montenegro |
| 2 Jun | 27.3 | Appointed | Armand-Jules de Rohan-Guémené † | Archbishop of Reims, France |
| 7 Jun | | Ordained Bishop | Paul-Robert Hertault de Beaufort † | Bishop of Lectoure, France |
| 9 Jun | | Died | Pietro Alessandro Procaccini † | Bishop of Avellino-Frigento, Italy |
| 22 Jun | 21.8 | Confirmed | Clemens August Maria Herzog von Bayern † | Coadjutor Archbishop of Köln {Cologne}, Germany | Archbishop |
| Died | Antonio Maldonado Minoja † | Bishop of Oviedo, Spain |
| 23 Jun | | Born | Juam Manuel Antonio Ramos Lora, O.F.M. † | Los Palacios y Villafranca, Spain | Bishop of Mérida, Venezuela |
| 27 Jun | 71.5 | Died | Charles-Bénigne Hervé † | Bishop Emeritus of Gap, France |
| 5 Jul | 27.2 | Ordained Priest | Bernardo Rodrigues Nogueira † | Priest | Bishop of São Paulo, Brazil |
| 6 Jul | 39.9 | Appointed | Annibale Albani † | Cardinal-Priest of S. Clemente | Cardinal, Cardinal-Bishop of Porto e Santa Rufina |
| 53.2 | Appointed | Francesco Antonio Finy † | Bishop of Avellino-Frigento, Italy | Cardinal, Bishop of Tivoli, Italy |
| 27.4 | Confirmed | Armand-Jules de Rohan-Guémené † | Archbishop of Reims, France |
| 16 Aug | 57.6 | Ordained Bishop | Juan Fernández Zapata † | Bishop of Mallorca, Spain | Bishop of León, Spain |
| 20 Aug | 50.8 | Installed | Henri-Osvald de La Tour d'Auvergne de Bouillon † | Archbishop of Vienne, France | Cardinal, Archbishop Emeritus |
| 23 Aug | 27.5 | Ordained Bishop | Armand-Jules de Rohan-Guémené † | Archbishop of Reims, France |
| 7 Sep | 79.5 | Died | Sebastião Monteiro da Vida, S.J. † | Archbishop of São Salvador da Bahia, Brazil |
| 19 Sep | 25.1 | Ordained Priest | Joseph-Hubert de Boccard † | Priest of Lausanne, Switzerland | Bishop |
| 24.2 | Ordained Priest | Johann Karl Leopold Graf von Scherffenberg † | Priest of Olomouc, Czech Republic | Auxiliary Bishop |
| 22 Sep | | Born | Francisco Antonio de Lorenzana y Butrón † | León | Cardinal, Archbishop Emeritus of Toledo, Spain |
| 23 Sep | 29.9 | Appointed | Alessandro Albani † | Cardinal-Deacon of S. Maria in Cosmedin | Cardinal, Archivist of the Vatican Secret Archives |
| 42.7 | Appointed | Juan Antonio de Lardizabal y Elorza † | Bishop of Tlaxcala, Tlaxcala, México |
| 39.0 | Appointed | Johann Franz Anton Reichsfreiherr von Sirgenstein † | Auxiliary Bishop of Konstanz {Constance}, Germany |
| 39.0 | Appointed | Johann Franz Anton Reichsfreiherr von Sirgenstein † | Titular Bishop of Uthina | Auxiliary Bishop of Konstanz {Constance}, Germany |
| 7 Oct | 100.8 | Appointed | Juan Herrera † | Bishop of Sigüenza, Spain |
| 54.8 | Appointed | Luis Salcedo Azcona † | Archbishop of Sevilla {Seville}, Spain |
| 9 Oct | 49.8 | Appointed | Benito Crespo y Monroy, O.S. † | Bishop of Durango, Durango, México | Bishop of Tlaxcala, Tlaxcala, México |
| 10 Oct | | Born | Rafael José Verger y Suau, O.F.M. † | Mallorca, Spain | Bishop of Linares o Nueva León, Nuevo León, México |
| 12 Oct | | Born | Stephan Alexander Würdtwein † | Amorbach | Auxiliary Bishop of Worms, Germany |
| 14 Oct | 60.8 | Ordained Bishop | José Xirón de Alvarado, O.P. † | Bishop of León en Nicaragua |
| 22 Oct | | Born | Giovanni Lercari † | | Archbishop of Genova, Italy |
| 24 Oct | | Appointed | Maciej Józef Ancuta † | Bishop of Vilnius, Lithuania |
| 78.8 | Died | Konstanty Kazimierz Brzostowski † | Bishop of Vilnius, Lithuania |
| 25 Oct | 53.7 | Died | Raymund Ferdinand Graf von Rabatta † | Bishop of Passau, Germany |
| 28 Oct | 40.2 | Ordained Priest | Annibale Albani † | Priest | Cardinal, Cardinal-Bishop of Porto e Santa Rufina |
| 57.3 | Died | Wilhelm Hermann Ignaz Ferdinand Reichsfreiherr von Wolf-Metternich zu Gracht † | Auxiliary Bishop of Münster, Germany |
| 1 Nov | | Born | Carlo Livizzani Forni † | Modena | Cardinal, Cardinal-Priest of S. Silvestro in Capite |
| 12 Nov | 72.5 | Died | Jerónimo del Valle Ledesma † | Bishop of Almería, Spain |
| 18 Nov | | Died | Bonaventura Poerio, O.F.M. † | Archbishop of Salerno, Italy |
| 20 Nov | | Born | Benoit-Antoine Doria † | Rogliano | Bishop of Ajaccio, France |
| 65.3 | Appointed | Feliks Ignacy Kretowski † | Bishop of Chelmno (Culma), Poland |
| 22 Nov | 34.1 | Ordained Priest | Ettore Molza † | Priest | Bishop of Modena, Italy |
| 25 Nov | 51.9 | Appointed | Manuel Coutinho † | Bishop of Funchal, Portugal | Bishop of Lamego, Portugal |
| 29 Nov | 42.9 | Ordained Bishop | Juan Antonio de Lardizabal y Elorza † | Bishop of Tlaxcala, Tlaxcala, México |
| Dec | 61.3 | Died | Ottavio Picenardi (Piccinardi) † | Bishop of Reggio Emilia, Italy |
| 4 Dec | | Born | Guillaume Piguel, M.E.P. † | La Mézière, France | Vicar Apostolic of Cochin {Cocincina}, Viêt Nam |
| 6 Dec | 100.9 | Ordained Bishop | Juan Herrera † | Bishop of Sigüenza, Spain |
| 39.2 | Ordained Bishop | Johann Franz Anton Reichsfreiherr von Sirgenstein † | Titular Bishop of Uthina | Auxiliary Bishop of Konstanz {Constance}, Germany |
| 15 Dec | 34.0 | Appointed | Johann Friedrich Adolf Freiherr von Hörde zu Schönholthausen † | Vicar Apostolic of Nordic Missions, Germany |