| Date | Age | Event | Bishop | Title | Current Title |
| unknown | | Died | Gabriel Adarzo de Santander, O. de M. † | Archbishop of Otranto, Italy |
| Died | William Burgat † | Archbishop of Cashel, Ireland |
| Appointed | Filippo Neri degli Altoviti † | Bishop of Fiesole, Italy |
| Appointed | Mario Emmanuelle Durazzo † | Bishop of Aleria, France |
| 24.2 | Ordained Priest | Johann Franz Freiherr von Eckher von Kapfing und Liechteneck † | Priest | Bishop of Freising, Germany |
| 55.0 | Appointed | Jacques de Fieux † | Coadjutor Bishop of Toul, France | Bishop |
| Born | Alexander Antoni Pleszowice Fredro † | | Bishop of Przemyśl, Poland |
| Died | Matteo di Génnaro † | Archbishop of Reggio Calabria, Italy |
| 69.6 | Resigned | Léonor I de Goyon de Matignon † | Bishop of Lisieux, France | Bishop Emeritus |
| Born | Girolamo Grimaldi † | Genoa | Cardinal, Titular Archbishop of Edessa in Osrhoëne |
| Appointed | Fabio Guinigi † | Archbishop of Ravenna, Italy |
| Born | Stanisław Józef Hozjusz † | | Bishop of Poznań, Poland |
| Died | Vincenzo Maffia † | Bishop of Patti, Italy |
| Born | Nicolas de Malezieu † | Paris | Bishop of Lavaur, France |
| 56.3 | Appointed | Lothar Friedrich Reichsfreiherr von Metternich-Burscheid † | Bishop of Worms, Germany | Archbishop of Mainz, Germany |
| Born | Agostino Saluzzo, C.M. † | | Bishop of Acci and Mariana, France |
| Died | Filippo Soldani † | Bishop of Fiesole, Italy |
| 17.0 | Ordained Priest | Francisco Solís Hervás, O. de M. † | Priest of Order of Our Lady of Mercy | Bishop of Córdoba, Spain |
| Born | José de Toro y Zambrano † | Santiago | Bishop of Concepción, Chile |
| Born | Ernst August von Braunschweig-Lüneburg † | | Bishop of Osnabrück, Germany |
| 2 Jan | 60.0 | Installed | Kazimierz Florian Czartoryski † | Archbishop of Gniezno, Poland |
| Born | Andrea Duranti † | Brescia | Titular Bishop of Chytri |
| 12 Jan | 42.0 | Died | Antonio do Espirito Santo, O.C.D. † | Bishop of Angola e Congo, Angola |
| 15 Jan | 57.0 | Installed | Pietro Bassdonna † | Cardinal, Cardinal-Deacon of S. Maria in Domnica |
| 21 Jan | | Born | Stephan Cloth, O.S.B. † | Hemen | Auxiliary Bishop of Fulda, Germany |
| 28 Jan | 49.1 | Ordained Bishop | Johannes Brassert † | Titular Bishop of Daulia | Auxiliary Bishop of Speyer, Germany |
| 32.8 | Ordained Bishop | Adrian von Riedmatten (Jr.) † | Bishop of Sion {Sitten}, Switzerland |
| 44.1 | Ordained Bishop | Johannes Schmitzberger, O.S.B. † | Titular Bishop of Helenopolis in Bithynia | Auxiliary Bishop of Wien, Austria |
| 8 Feb | 73.1 | Died | Fabio dos Reis Fernandes, O. Carm. † | Bishop of Santiago de Cabo Verde |
| 12 Feb | 60.8 | Died | Juan López † | Archbishop of Manila, Philippines |
| 17 Feb | 24.9 | Ordained Priest | Diego Ibáñez de la Madrid y Bustamente † | Priest | Bishop of Ceuta, Spain |
| 19 Feb | 37.1 | Appointed | Manuel Fernández de Santa Cruz y Sahagún † | Bishop of Guadalajara, Jalisco, México | Bishop of Tlaxcala, Tlaxcala, México |
| 50.7 | Resigned | Paluzzo Paluzzi Altieri Degli Albertoni † | Archbishop of Ravenna, Italy | Cardinal, Archbishop Emeritus |
| 24 Feb | | Appointed | Polykarp Wilhelm Reichsgraf von Kuenburg † | Bishop of Gurk, Austria |
| 3 Mar | | Born | Friedrich Karl Reichsgraf von Schönborn † | Mainz | Bishop of Würzburg, Germany |
| 10 Mar | 49.2 | Appointed | Johannes Brassert † | Auxiliary Bishop of Mainz, Germany | Auxiliary Bishop of Speyer, Germany |
| 12 Mar | 42.9 | Appointed | Pierre de Bonzi † | Cardinal, Archbishop of Narbonne, France |
| Appointed | Marcos Bravo de la Serna Manrique † | Bishop of Chiapas (Ciudad Real de Chiapas), Chiapas, México |
| 13 Mar | 72.2 | Appointed | Jan Gembicki † | Bishop of Włocławek, Poland | Bishop of Płock, Poland |
| 19 Mar | 25.5 | Ordained Priest | Giuseppe Placido De Pace † | Priest | Bishop of Oppido Mamertina, Italy |
| Born | Joseph de Guyon de Crochans † | Avignon | Archbishop of Avignon, France |
| 24 Mar | 40.2 | Ordained Priest | Johann Hugo von Orsbeck † | Priest of Trier, Germany | Archbishop |
| 25 Mar | 36.8 | Ordained Bishop | Louis Laneau, M.E.P. † | Titular Bishop of Metellopolis | Vicar Apostolic of Siam, Thailand |
| 2 Apr | | Ordained Bishop | Polykarp Wilhelm Reichsgraf von Kuenburg † | Bishop of Gurk, Austria |
| 13 Apr | | Appointed | Francisco Antonio Sarmiento y Luna, O.S.A. † | Bishop of Foreign Diocese |
| 16 Apr | 50.3 | Appointed | Manoel a Nativitate do Nascimento, O.S.H. † | Bishop of São Tomé e Príncipe |
| 6 May | 69.2 | Installed | Juan de Almoguera, O.SS.T. † | Archbishop of Lima, Peru |
| 7 May | 86.3 | Died | Wolther Heinrich Freiherr von Strevesdorff † | Auxiliary Bishop of Mainz, Germany |
| 12 May | | Died | Francesco Maria Annoni † | Bishop of Muro Lucano, Italy |
| 15 May | 60.4 | Died | Kazimierz Florian Czartoryski † | Archbishop of Gniezno, Poland |
| 17 May | | Born | Francisco Mendigaño Armendáriz † | Astrain, Spain | Archbishop of Santo Domingo, Dominican Republic |
| 19 May | | Installed | Francisco Verdín y Molina † | Bishop of Michoacán, Michoacán, México |
| 29 May | 30.4 | Ordained Bishop | Franz Caspar Reichsfreiherr von Stadion † | Bishop of Lavant, Slovenia |
| Jun | | Ordained Bishop | Marcos Bravo de la Serna Manrique † | Bishop of Chiapas (Ciudad Real de Chiapas), Chiapas, México |
| 3 Jun | | Ordained Bishop | Juan Aparicio Navarro † | Bishop of Lugo, Spain | Bishop of León, Spain |
| 4 Jun | | Died | Gianagostino Marliani † | Bishop of Reggio Emilia, Italy |
| 7 Jun | | Born | Francesco Maria Pallavicini † | Cremona | Titular Patriarch of the unknown of Titular See |
| 9 Jun | | Died | Alfonso Bravo de Laguna, O.F.M. † | Bishop of León en Nicaragua |
| 14 Jun | 76.5 | Died | Benito Sanchez de Herrera † | Bishop of Pozzuoli, Italy |
| 24 Jun | | Born | Armand-Gaston-Maximilien de Rohan de Soubise † | Paris | Cardinal, Bishop of Strasbourg, France |
| 26 Jun | 53.4 | Appointed | Andrzej Olszowski † | Archbishop of Gniezno, Poland |
| 10 Jul | | Appointed | Juan de la Calle y Heredia, O. de M. † | Bishop of Arequipa, Peru |
| 16 Jul | | Born | Johann Anton Reichsfreiherr von Freyberg-Hopferau † | Hopferau | Bishop of Eichstätt, Germany |
| 26 Jul | 22.9 | Ordained Priest | Manuel Alvares da Costa † | Priest | Bishop of Angra, Portugal |
| 3 Aug | | Born | Domenico Antonio Manfredi † | Cryptolarum | Bishop of Boiano, Italy |
| 5 Aug | | Born | Christoph Ignaz von Gudenus † | Erfurt | Auxiliary Bishop of Mainz, Germany |
| 12 Aug | | Ordained Bishop | Luc d'Aquin † | Bishop of Saint-Paul-Trois-Châteaux, France | Bishop Emeritus of Fréjus, France |
| 26 Aug | | Died | Albert Fabri † | Bishop of Orange, France |
| 10 Sep | 65.0 | Confirmed | Johann Hartmann Reichsritter von Rosenbach † | Bishop of Würzburg, Germany |
| 13 Sep | 59.7 | Died | Jacques Adhémar de Monteil de Grignan † | Bishop of Uzés, France |
| 14 Sep | | Born | Giovanni Antonio Guadagni, O.C.D. † | Florence | Cardinal, Bishop of Porto e Santa Rufina, Italy |
| 19 Sep | 54.7 | Died | Louis-Henri de Pardaillon de Gondrin † | Archbishop of Sens, France |
| 22 Sep | | Died | Ladislas Jonnart † | Archbishop of Cambrai, France |
| 26 Sep | 65.0 | Died | Ottavio Acquaviva d’Aragona (Jr.) † | Cardinal, Cardinal-Priest of S. Cecilia |
| 1 Oct | 51.4 | Appointed | Bl. François de Laval de Montmorency † | Bishop of Québec, Québec, Canada | Bishop Emeritus |
| 53.7 | Confirmed | Andrzej Olszowski † | Archbishop of Gniezno, Poland |
| 43.9 | Appointed | Alfonso Pacella (Pacelli) † | Bishop of Muro Lucano, Italy |
| 4 Oct | | Born | Agustín Rodríguez Delgado † | Oropesa, Spain | Archbishop of Lima, Peru |
| 8 Oct | | Born | Antonino Serafino Camarda, O.P. † | Messina | Bishop of Rieti, Italy |
| 14 Oct | 69.8 | Appointed | Jean de Montpezat de Carbon † | Archbishop of Sens, France |
| 28 Oct | 65.1 | Died | Giovanni Bona † | Cardinal, Cardinal-Priest of S. Bernardo alle Terme |
| 21 Nov | 34.9 | Appointed | Jean-Baptiste-Michel Colbert de Saint-Pouange † | Bishop of Montauban, France | Archbishop of Toulouse, France |
| 59.9 | Appointed | Joseph de Montpezat de Carbon † | Archbishop of Toulouse, France |
| 22 Nov | 49.9 | Resigned | Otto Reinhold Andrimont, O.S.A. † | Auxiliary Bishop of Praha {Prague}, Czech Republic | Auxiliary Bishop Emeritus |
| Appointed | Antoine-Benoît de Clermont-Tonnerre † | Bishop of Fréjus, France |
| 17 Dec | 49.3 | Elevated to Cardinal | Federico Baldeschi Colonna † | Cardinal, Prefect of the Congregation of the Council |
| 19 Dec | 55.5 | Died | Marcello Santacroce † | Cardinal, Bishop of Tivoli, Italy |
| 22 Dec | 37.3 | Appointed | Léonor II de Goyon de Matignon † | Bishop of Lisieux, France |
| 31 Dec | | Ordained Bishop | Daniel-Louis de Baradat † | Bishop of Vabres, France |