| Date | Age | Event | Bishop | Title | Current Title |
| unknown | 79.0 | Died | Charles-Prudent de Becdelièvre † | Bishop of Nimes, France |
| Appointed | Joaquim Xavier Botelho de Lima † | Archbishop of Évora, Portugal |
| 50.0 | Appointed | Pierre-Marie-Madeleine Cortois de Balore † | Bishop of Nimes, France |
| 42.4 | Appointed | José da Costa e Torres † | Bishop of Funchal, Portugal | Archbishop of Braga, Portugal |
| Died | Onofrio de Rossi † | Bishop of Sant’Agata de’ Goti, Italy |
| Appointed | Agostino Gervasio, O.S.A. † | Bishop of Melfi-Rapolla, Italy | Archbishop of Capua, Italy |
| 22.8 | Ordained Priest | Jean-Baptist-Marie-Anne-Antoine de Latil † | Priest | Cardinal, Archbishop of Reims, France |
| 29.2 | Ordained Priest | Jean-François-Marie Le Pappe de Trévern † | Priest | Bishop of Strasbourg, France |
| 47.2 | Appointed | Michal Jerzy Poniatowski † | Archbishop of Gniezno, Poland |
| 34.9 | Confirmed | Franz Xaver Altgraf von Salm-Reifferscheidt-Krautheim † | Cardinal, Bishop of Gurk, Austria |
| Appointed | François de Vareille † | Bishop of Gap, France |
| Resigned | Rudolf Joseph von Edling † | Archbishop of Gorizia (Görz), Italy | Archbishop Emeritus |
| Jan | 82.4 | Died | Juan José García Alvaro † | Bishop of Coria, Spain |
| 5 Jan | | Born | Antonio Mantecón e Ibáñez † | Oaxaca | Bishop of Antequera, Oaxaca, México |
| 7 Jan | | Born | Louis-Jean-Julien Robiou de la Tréhonnais † | Combourg | Bishop Emeritus of Coutances (-Avranches), France |
| Born | Gennaro Saladino † | Napoli | Bishop of Isernia, Italy |
| 11 Jan | 43.7 | Ordained Bishop | Charles-Eutrope de La Laurancie † | Bishop of Nantes, France |
| 14 Jan | 60.6 | Died | Tomaz da Encarnação da Costa e Lima, C.R.S.A. † | Bishop of Olinda, Brazil |
| 15 Jan | | Born | George Hilary Brown † | Clifton | Bishop of Liverpool, England, Great Britain |
| 17 Jan | | Born | Giovanni Antonio Gianotti (Giannotti) † | Torino | Bishop of Saluzzo, Italy |
| 23 Jan | 53.0 | Died | Guillaume-Joseph d'Abzac de Mayac † | Bishop of Saint-Papoul, France |
| 71.4 | Died | Carlo Vittorio Amedeo delle Lanze † | Cardinal, Prefect of the Congregation of the Council |
| 25 Jan | 23.6 | Ordained Priest | Antonio Begni † | Priest | Bishop of Montefeltro, Italy |
| 26 Jan | | Born | Pawel Straszynski † | Krasnystaw | Bishop of Sejny o Sejna o Augustów, Poland |
| 1 Feb | 44.8 | Ordained Bishop | Francisco Casto Royo † | Titular Archbishop of Amida |
| 26.3 | Ordained Bishop | Lorenzo Gómez Haedo † | Bishop of Segorbe, Spain |
| 62.6 | Ordained Bishop | Antonio Andrés López Arroyo, O.F.M. † | Bishop of Astorga, Spain |
| 40.2 | Appointed | Jean-Baptiste-Marie de Maillé de la Tour-Landry † | Bishop of Saint-Papoul, France | Bishop of Rennes, France |
| 2 Feb | 52.2 | Appointed | François Mouchet de Villedieu † | Bishop of Digne, France | Bishop Emeritus |
| 8 Feb | 41.1 | Ordained Bishop | Charles-François-Joseph Pisani de La Gaude † | Bishop of Vence, France | Bishop Emeritus |
| 53.3 | Ordained Bishop | Jerónimo María Torres † | Bishop of Lérida, Spain |
| 18 Feb | 79.0 | Died | Fabian Franziszek Pląskowski † | Auxiliary Bishop of Chelmno (Culma), Poland |
| 19 Feb | | Born | José Sebastian Goyeneche Barreda † | Arequipa | Archbishop of Lima, Peru |
| 23 Feb | 35.2 | Appointed | Louis-François de Bausset-Roquefort † | Bishop of Alès (Alais), France | Cardinal, Bishop Emeritus |
| 6 Mar | 29.3 | Ordained Priest | Narciso Coll y Prat † | Priest | Bishop of Palencia, Spain |
| 14 Mar | 49.9 | Ordained Bishop | Francisco Veyán Mola † | Bishop of Vic, Spain |
| 25 Mar | | Born | Luigi Laterza † | Cassano | Bishop of Crotone (Cotrone), Italy |
| 27 Mar | 24.2 | Ordained Priest | Domenico Benedetto Balsamo, O.S.B. † | Priest of Order of Saint Benedict | Archbishop of Monreale, Italy |
| 30 Mar | 37.7 | Appointed | Jean Labartette, M.E.P. † | Coadjutor Vicar Apostolic of Cochin {Cocincina}, Viêt Nam | Vicar Apostolic |
| 37.7 | Appointed | Jean Labartette, M.E.P. † | Titular Bishop of the unknown of Titular See | Vicar Apostolic of Cochin {Cocincina}, Viêt Nam |
| 36.5 | Appointed | Michal Mateusz Stadnicki, O.S.B.M. † | Bishop of Foreign Diocese |
| 15 Apr | 75.9 | Died | Max Friedrich Reichsgraf von Königsegg und Rothenfels † | Archbishop of Köln {Cologne}, Germany |
| 27.4 | Succeeded | Max Franz (Maximilian Franciscus) von Habsburg-Lothringen (Österreich) † | Archbishop of Köln {Cologne}, Germany |
| 27.4 | Succeeded | Max Franz (Maximilian Franciscus) von Habsburg-Lothringen (Österreich) † | Bishop of Münster, Germany | Archbishop of Köln {Cologne}, Germany |
| 17 Apr | 78.3 | Died | Juan Luengo Pinto † | Bishop of Calahorra y La Calzada, Spain |
| 18 Apr | 50.3 | Ordained Bishop | Iraklij Listovskyj † | Bishop of Foreign Diocese |
| 21 Apr | | Born | Manuel Anselmo Nafría † | Torreblacos | Bishop of Coria, Spain |
| 30 Apr | 64.8 | Died | Franz Karl Reichsgraf von Velbrück † | Bishop of Liège, Belgium |
| 17 May | 47.4 | Appointed | James Louis O'Donel, O.F.M. † | Prefect of Newfoundland, Canada | Vicar Apostolic Emeritus of Newfoundland, Canada |
| 18 May | | Born | Ivan (Jan) Snihurskyj (Snigurski) † | Brzesciany | Bishop of Przemyśl (Ukrainian), Poland |
| 26 May | 39.5 | Ordained Priest | Ferdinando Maria Saluzzo † | Priest | Cardinal, Official of the Roman Curia - Other |
| 4 Jun | 25.2 | Ordained Priest | Carlos da Cunha e Menezes † | Priest | Cardinal, Patriarch of Lisboa, Portugal |
| 5 Jun | 30.9 | Ordained Priest | Jan Pavel Woronicz † | Priest of Society of Jesus | Archbishop of Warszawa {Warsaw}, Poland |
| 6 Jun | 26.1 | Ordained Priest | Andrés García Palomares † | Priest | Bishop of Albarracin, Spain |
| 9 Jun | 49.4 | Appointed | John Carroll † | Prefect of United States of America | Archbishop of Baltimore, Maryland, USA |
| Born | Alessandro d'Angennes † | Torino | Archbishop of Vercelli, Italy |
| 13 Jun | 41.4 | Ordained Bishop | Jean-Didier de Saint Martin, M.E.P. † | Bishop of Charadrus | Vicar Apostolic of Se-Ciuen, China |
| 22 Jun | 50.2 | Resigned | Antonio Sentmanat y Castellá † | Bishop of Avila, Spain | Cardinal, Patriarch of West Indies, Antilles |
| 25 Jun | 53.6 | Resigned | Leonardo Antonelli † | Prefect of the Congregation for Propagation of the Faith | Cardinal, Cardinal-Bishop of Ostia |
| 50.4 | Confirmed | Joseph Franz Anton Reichsgraf von Auersperg † | Cardinal, Bishop of Passau, Germany |
| 35.5 | Confirmed | Louis-François de Bausset-Roquefort † | Bishop of Alès (Alais), France | Cardinal, Bishop Emeritus |
| 37.2 | Appointed | José Carrión y Marfil † | Auxiliary Bishop of Santafé en Nueva Granada, Colombia | Bishop Emeritus of Trujillo, Peru |
| 37.2 | Appointed | José Carrión y Marfil † | Titular Bishop of Carystus | Bishop Emeritus of Trujillo, Peru |
| 59.9 | Appointed | Marcantonio Colonna † | Cardinal-Priest of S. Lorenzo in Lucina | Cardinal, Titular Archbishop of Corinthus |
| 46.2 | Appointed | Francisco Ramón Larumbre † | Bishop of Tudela, Spain |
| 40.6 | Confirmed | Jean-Baptiste-Marie de Maillé de la Tour-Landry † | Bishop of Saint-Papoul, France | Bishop of Rennes, France |
| 40.6 | Appointed | Rafael Tomás Menéndez Luarca y Queipo de Llano † | Bishop of Santander, Spain |
| Appointed | Giulio Pignatelli, O.S.B. † | Archbishop of Salerno, Italy |
| 39.6 | Appointed | Ferdinando Maria Saluzzo † | Titular Archbishop of the unknown of Titular See | Cardinal, Official of the Roman Curia - Other |
| 59.8 | Installed | Francisco Antonio de San Miguel Iglesia Cajiga, O.S.H. † | Bishop of Michoacán, Michoacán, México |
| 50.2 | Appointed | Antonio Sentmanat y Castellá † | Cardinal, Patriarch of West Indies, Antilles |
| 53.0 | Appointed | Francisco Antonio Pablo Sieni Flannings, O.F.M. Cap. † | Auxiliary Bishop of Santiago de Cuba | Auxiliary Bishop Emeritus of San Cristobal de la Habana, Cuba |
| 53.0 | Appointed | Francisco Antonio Pablo Sieni Flannings, O.F.M. Cap. † | Titular Bishop of Trecalae | Auxiliary Bishop Emeritus of San Cristobal de la Habana, Cuba |
| 62.1 | Appointed | Felipe José de Tres-Palacios y Verdeja † | Bishop of Puerto Rico (Porto Rico) | Bishop of San Cristobal de la Habana, Cuba |
| 35.7 | Appointed | Karl Friedrich Freiherr von Wendt † | Auxiliary Bishop of Hildesheim, Germany |
| 35.7 | Appointed | Karl Friedrich Freiherr von Wendt † | Titular Bishop of Basilinopolis | Auxiliary Bishop of Hildesheim, Germany |
| 26 Jun | 64.1 | Appointed | Juan García Ruiz, O.S.A. † | Bishop of Nueva Caceres, Philippines |
| 4 Jul | 39.6 | Ordained Bishop | Ferdinando Maria Saluzzo † | Titular Archbishop of the unknown of Titular See | Cardinal, Official of the Roman Curia - Other |
| 11 Jul | 31.6 | Appointed | François de Pierre de Bernis † | Coadjutor Archbishop of Albi, France | Archbishop of Rouen, France |
| 13 Jul | 39.6 | Appointed | Ferdinando Maria Saluzzo † | Titular Archbishop of Cartagine | Cardinal, Official of the Roman Curia - Other |
| 18 Jul | 35.6 | Ordained Bishop | Louis-François de Bausset-Roquefort † | Bishop of Alès (Alais), France | Cardinal, Bishop Emeritus |
| 36.4 | Ordained Bishop | Jean-Joseph-Victor de Castellane-Adhémar † | Bishop of Senez, France |
| 22.5 | Ordained Priest | Paolo Leardi † | Priest | Apostolic Nuncio to Austria |
| 52.7 | Ordained Bishop | François Mouchet de Villedieu † | Bishop of Digne, France | Bishop Emeritus |
| 21 Jul | 59.9 | Appointed | César Constantin François de Hoensbroeck † | Bishop of Liège, Belgium |
| 30 Jul | 39.7 | Appointed | Ferdinando Maria Saluzzo † | Apostolic Nuncio to Poland | Cardinal, Official of the Roman Curia - Other |
| 7 Aug | | Succeeded | Kasper Kazimierz Cieciszowski † | Bishop of Foreign Diocese | Archbishop of Mohilev, Belarus |
| 8 Aug | 35.5 | Ordained Bishop | Franz Xaver Altgraf von Salm-Reifferscheidt-Krautheim † | Cardinal, Bishop of Gurk, Austria |
| 9 Aug | 71.9 | Died | Manuel Rubín Celis † | Bishop of Cartagena (en España) |
| 14 Aug | | Born | Francesco Capaccini † | Rome | Cardinal, Priest of the Roman Curia - Other |
| 22 Aug | | Born | Filippo Arrica † | Pugamboccio | Bishop of Alghero, Italy |
| 26 Aug | 71.4 | Died | Antoni Kazimierz Ostrowski † | Archbishop of Gniezno, Poland |
| 31 Aug | 76.3 | Appointed | Aldrago Antonio de Piccardi † | Bishop of Senj (-Modruš), Croatia |
| 5 Sep | 63.7 | Died | Gaspard Brunet de Tressemanes † | Bishop Emeritus of Glandèves, France |
| 40.8 | Ordained Bishop | Rafael Tomás Menéndez Luarca y Queipo de Llano † | Bishop of Santander, Spain |
| Born | Angel Mariano de Morales y Jasso † | Tangancícuaro | Bishop of Antequera, Oaxaca, México |
| 18 Sep | 27.5 | Ordained Priest | Godfried Joseph Crüts van Creits † | Priest of Wiener Neustadt, Austria | Bishop of Sankt Pölten, Austria |
| 25.7 | Ordained Priest | André Molin † | Priest | Bishop of Viviers, France |
| 19 Sep | 25.8 | Ordained Priest | Francesco Saverio (François-Xavier) Pereira † | Priest | Bishop of Rieti, Italy |
| 20 Sep | 53.0 | Elevated to Cardinal | Giovanni Andrea Archetti † | Cardinal, Bishop of Ascoli Piceno, Italy |
| 31.8 | Appointed | François de Pierre de Bernis † | Titular Archbishop of Damascus | Archbishop of Rouen, France |
| 31.8 | Confirmed | François de Pierre de Bernis † | Coadjutor Archbishop of Albi, France | Archbishop of Rouen, France |
| 69.4 | Appointed | Giovanni Carlo Boschi † | Cardinal-Priest of S. Lorenzo in Lucina | Cardinal, Titular Archbishop of Atenia |
| 52.9 | Appointed | Carlo Luigi Buronzo del Signore † | Bishop of Acqui, Italy | Archbishop of Torino {Turin}, Italy |
| 60.1 | Appointed | Marcantonio Colonna † | Cardinal-Bishop of Palestrina | Cardinal, Titular Archbishop of Corinthus |
| 67.0 | Appointed | Julián Gascueña Herráiz, O.F.M. † | Bishop of Avila, Spain |
| 66.2 | Appointed | Hyacinthe-Sigismond Gerdil, B. † | Cardinal, Cardinal-Priest of S. Cecilia |
| 60.1 | Confirmed | César Constantin François de Hoensbroeck † | Bishop of Liège, Belgium |
| 41.7 | Appointed | Paolo Giuseppe Solaro † | Bishop of Aosta, Italy | Cardinal, Bishop Emeritus |
| 26 Sep | 46.5 | Ordained Bishop | Francisco Ramón Larumbre † | Bishop of Tudela, Spain |
| 41.7 | Ordained Bishop | Paolo Giuseppe Solaro † | Bishop of Aosta, Italy | Cardinal, Bishop Emeritus |
| 2 Oct | 62.7 | Succeeded | Krysztof Hilary Szembek † | Bishop of Płock, Poland |
| 10 Oct | 36.0 | Ordained Bishop | Karl Friedrich Freiherr von Wendt † | Titular Bishop of Basilinopolis | Auxiliary Bishop of Hildesheim, Germany |
| 29 Oct | 72.8 | Died | Antonio Joaquín Soria † | Bishop of Valladolid, Spain |
| Nov | | Born | John Ryan † | Twomileborris | Bishop of Limerick, Ireland |
| 8 Nov | 63.9 | Resigned | Luis da Anunciação Azevedo, O.P. † | Bishop of Angola e Congo, Angola | Bishop Emeritus |
| 18 Nov | | Born | Fermín Sánchez Artesoro, O.F.M. Cap. † | Alcaraz | Bishop of Cuenca, Ecuador |
| 29 Nov | 69.8 | Resigned | Jean-Olivier Briand † | Bishop of Québec, Québec, Canada | Bishop Emeritus |
| 2 Dec | 74.6 | Succeeded | Louis-Philippe-François Mariauchau d'Esglis † | Bishop of Québec, Québec, Canada |
| 4 Dec | 51.0 | Died | Ildefonso Molina Santaella † | Bishop of Ciudad Rodrigo, Spain |
| 10 Dec | 65.6 | Resigned | Miguel González Bassecourt, O.F.M. Cap. † | Bishop of Arequipa, Peru | Bishop Emeritus |
| 12 Dec | | Born | José María Luciano Becerra y Jiménez † | Jalapa | Bishop of Tlaxcala, Tlaxcala, México |
| 15 Dec | 68.5 | Died | Pierre-Paul du Quaylar (Caylar) † | Bishop Emeritus of Digne, France |
| 18 Dec | 24.3 | Ordained Priest | Joseph-Michel-Jean-Baptiste-Paul-Augustin Micolon de Guérines † | Priest | Bishop of Nantes, France |
| 19 Dec | 60.3 | Ordained Bishop | César Constantin François de Hoensbroeck † | Bishop of Liège, Belgium |
| Born | Michele de Korczynscki † | Tarnovia | Bishop of Przemyśl, Poland |
| 20 Dec | 36.6 | Appointed | Johann Prokop Graf von Schaffgotsch † | Bishop of Ceské Budĕjovice {Budweis}, Czech Republic |
| 21 Dec | 28.0 | Ordained Priest | Max Franz (Maximilian Franciscus) von Habsburg-Lothringen (Österreich) † | Priest of Köln {Cologne}, Germany | Archbishop |