| Date | Age | Event | Bishop | Title | Current Title |
| unknown | 59.3 | Ordained Bishop | Jacinto Aguado y Chacón † | Bishop of Arequipa, Peru | Bishop of Osma, Spain |
| 63.7 | Ordained Bishop | José Francisco Biguezal † | Bishop of Ciudad Rodrigo, Spain |
| 24.1 | Ordained Priest | Stefano Borgia † | Priest | Cardinal, Prefect of the Congregation for Propagation of the Faith |
| 17.5 | Professed | Theodor Freiherr von Brabeck, O.S.B. † | Member of Order of Saint Benedict | Bishop-Elect of Corvey, Germany |
| Appointed | Jean-Louis du Buisson de Beauteville † | Bishop of Alès (Alais), France |
| Appointed | Giuseppe Maria Capece Zurlo † | Bishop of Calvi, Italy | Cardinal, Archbishop of Napoli {Naples}, Italy |
| 23.5 | Ordained Priest | Roberto Costaguti † | Priest | Bishop of Sansepolcro (Borgo San Sepolcro), Italy |
| 34.0 | Appointed | Claude-François-Ignace Franchet de Ran † | Auxiliary Bishop of Besançon, France |
| 27.0 | Ordained Priest | Jean-François de La Marche † | Priest | Bishop of Saint-Pol-de-Léon, France |
| 40.7 | Ordained Bishop | José Francis Laso de Castilla † | Bishop of Málaga, Spain |
| Born | Ranald MacDonald † | Edinburgh | Vicar Apostolic of Western District, Scotland, Great Britain |
| Appointed | Carlo Mineo † | Bishop of Patti, Italy |
| 23.2 | Ordained Priest | Pedro Nolasco Mora Mora, O. de M. † | Priest of Order of Our Lady of Mercy | Bishop of Solsona, Spain |
| Born | Nicolas-Alexis Ondenard † | | Bishop of Namur {Namen}, Belgium |
| 49.0 | Ordained Bishop | Manuel Antonio Palmero Rallo † | Bishop of Gerona, Spain |
| 40.1 | Ordained Bishop | Kajetan Ignacy Sołtyk † | Titular Bishop of Emmaüs | Bishop of Kraków, Poland |
| Born | Alessandro Tomasini † | | Archbishop of Reggio Calabria, Italy |
| Died | Louis Jacques François de Vocance † | Bishop of Senez, France |
| 1 Jan | 45.0 | Died | Louis-Marie Deveaux, M.E.P. † | Coadjutor Vicar Apostolic of Western Tonking {Tonkino Occidentale}, Viêt Nam |
| 4 Jan | 52.3 | Ordained Bishop | Nicolás Gil Martínez y Malo † | Bishop of Santa Marta, Colombia |
| 6 Jan | 48.3 | Ordained Bishop | Pascual López Estaún † | Bishop of Jaca, Spain | Bishop of Huesca, Spain |
| 12 Jan | 53.3 | Appointed | Martín Barcia Carrascal † | Bishop of Córdoba, Spain |
| 81.3 | Appointed | Giovanni Antonio Guadagni, O.C.D. † | Cardinal, Bishop of Porto e Santa Rufina, Italy |
| 18 Jan | 66.5 | Succeeded | Johann Friedrich Karl Reichgraf von Ostein † | Bishop of Worms, Germany | Archbishop of Mainz, Germany |
| 54.8 | Ordained Bishop | Francisco Javier Pérez Baroja y Muro † | Bishop of Teruel, Spain |
| 73.6 | Died | Franz Georg Reichsfgraf von Schönborn † | Archbishop of Trier, Germany |
| 54.7 | Succeeded | Johann Philipp Reichsgraf von Waldendorff † | Archbishop of Trier, Germany |
| 19 Jan | | Born | Francesco Scipio Dondi Orologio † | Padova | Bishop of Padova {Padua}, Italy |
| 20 Jan | 47.3 | Resigned | Leopold Ernst Graf von Firmian † | Coadjutor Bishop of Trento, Italy | Cardinal, Bishop of Passau, Germany |
| 1 Feb | 26.7 | Ordained Priest | Ignaz Franz Stanislaus Reichsgraf von Spaur † | Priest of Salzburg, Austria | Bishop of Brixen {Bressanone}, Italy |
| 3 Feb | 67.5 | Died | Lorenzo Taranco Mujaurrieta † | Bishop of Gerona, Spain |
| 6 Feb | | Born | Francesco Antonio Mondelli † | Rome | Bishop of Città di Castello, Italy |
| 11 Feb | | Born | Philippe-François Sausin † | Orange | Bishop of Blois, France |
| 23 Feb | | Born | Lorenzo Litta † | Milan | Cardinal, Official of the Roman Curia - Other |
| 6 Mar | 54.4 | Appointed | Francesco Felice Alberti d’Enno † | Coadjutor Bishop of Trento, Italy | Bishop |
| 8 Mar | | Born | Jean-Eléonor Montanier de Belmont † | Seyssel | Bishop of Saint-Flour, France |
| 11 Mar | | Born | Giuseppe Spina † | Sarzana | Cardinal, Archbishop Emeritus of Genova, Italy |
| 16 Mar | 62.7 | Died | Juan Antonio Pérez Arellano † | Auxiliary Bishop of Toledo, Spain |
| 23 Mar | 51.2 | Appointed | Manuel Antonio de la Torre † | Bishop of Paraguay | Bishop of Buenos Aires, Argentina |
| 29 Mar | 50.1 | Succeeded | John Joseph Hornyold † | Vicar Apostolic of Midland District, England, Great Britain |
| 78.2 | Died | John Talbot Stonor † | Vicar Apostolic of Midland District, England, Great Britain |
| 1 Apr | 64.3 | Died | Gregorio de Molleda y Clerque † | Archbishop of La Plata o Charcas, Bolivia |
| 3 Apr | 24.1 | Ordained Priest | Wenzel Kobaltz † | Priest of Meissen (Meißen) {Lusazia o Lausitz; Sassonia}, Germany | Prefect |
| 5 Apr | 53.3 | Elevated to Cardinal | Paul d’Albert de Luynes † | Cardinal, Archbishop of Sens, France |
| 54.1 | Appointed | Luigi Mattei † | Cardinal, Cardinal-Priest of S. Maria in Ara Coeli |
| 59.3 | Elevated to Cardinal | Etienne-René Potier de Gesvres † | Cardinal, Bishop Emeritus of Beauvais, France |
| 32.9 | Elevated to Cardinal | Francisco de Saldanha da Gama † | Cardinal, Patriarch of Lisboa, Portugal |
| 65.6 | Elevated to Cardinal | Nicolas-Charles de Saulx-Tavannes † | Cardinal, Archbishop of Rouen, France |
| 43.1 | Elevated to Cardinal | Francisco de Solís Folch de Cardona † | Cardinal, Archbishop of Sevilla {Seville}, Spain |
| 51.7 | Elevated to Cardinal | Johann Joseph Reichsgraf von Trautson zu Falkenstein (Trauston) † | Cardinal, Archbishop of Wien {Vienna}, Austria |
| 7 Apr | 43.1 | Appointed | José Patricio de la Cuesta Velarde † | Bishop of Ceuta, Spain | Bishop of Sigüenza, Spain |
| 9 Apr | | Born | Jean-André Doussain, M.E.P. † | Doué-la-Fontaine, France | Coadjutor Vicar Apostolic of Cochin {Cocincina}, Viêt Nam |
| 10 Apr | | Born | Jean-Louis Florens, M.E.P. † | Lagnes, France | Coadjutor Vicar Apostolic of Se-Ciuen, China |
| 17 Apr | 23.1 | Ordained Priest | Emilio Gentile † | Priest | Bishop of Alife, Italy |
| 19 Apr | 40.4 | Succeeded | Kajetan Ignacy Sołtyk † | Bishop of Foreign Diocese | Bishop of Kraków, Poland |
| 20 Apr | | Born | Juan José Díaz de Espada y Fernánez de Landa † | Arroyabe, Spain | Bishop of San Cristobal de la Habana, Cuba |
| 25 Apr | 54.6 | Died | Enrique Enríquez † | Cardinal, Official of the Secretariat of State |
| 28 Apr | 70.5 | Died | Johann Ferdinand Joseph Freiherr von Boedigkeim † | Auxiliary Bishop of Freising, Germany |
| 4 May | | Born | Louis-Jules-François-Joseph d'Andigné de Mayneuf † | Le Lion-d'Angers | Bishop of Nantes, France |
| 11 May | | Born | Jean-Pierre de Gallien de Chabons † | Grenoble | Bishop Emeritus of Amiens, France |
| 12 May | 90.2 | Died | Johann Franz Riccius † | Auxiliary Bishop of Strasbourg, France |
| 23 May | 34.4 | Ordained Bishop | Claude-François-Ignace Franchet de Ran † | Titular Bishop of the unknown of Titular See | Auxiliary Bishop of Besançon, France |
| 39.8 | Appointed | Emmanuel Ernst Reichsgraf von Waldstein † | Auxiliary Bishop of Praha {Prague}, Czech Republic | Bishop of Litomĕrice, Czech Republic |
| 39.8 | Appointed | Emmanuel Ernst Reichsgraf von Waldstein † | Titular Bishop of Amyclae | Bishop of Litomĕrice, Czech Republic |
| 24 May | 64.1 | Appointed | José Francisco Biguezal † | Bishop of Ciudad Rodrigo, Spain |
| 42.1 | Appointed | Diego Antonio Díez Madroñero † | Bishop of Caracas, Santiago de Venezuela |
| 51.4 | Confirmed | Manuel Antonio de la Torre † | Bishop of Paraguay | Bishop of Buenos Aires, Argentina |
| 66.8 | Appointed | Pedro Gómez de la Torre † | Bishop of Plasencia, Spain |
| 55.4 | Appointed | Pedro Martínez de Oneca † | Bishop of Puerto Rico (Porto Rico) |
| 3 Jun | 53.1 | Died | José de Bragança † | Archbishop of Braga, Portugal |
| 7 Jun | | Born | Bernhard Boll, O. Cist. † | Stuttgart | Archbishop of Freiburg im Breisgau, Germany |
| 15 Jun | 34.4 | Appointed | Charles Walmesley, O.S.B. † | Coadjutor Vicar Apostolic of Western District, England, Great Britain | Vicar Apostolic |
| 34.4 | Appointed | Charles Walmesley, O.S.B. † | Titular Bishop of Ramata | Vicar Apostolic of Western District, England, Great Britain |
| 21 Jun | | Died | José Antonio Flores de Rivera † | Bishop of León en Nicaragua |
| 28 Jun | 38.6 | Died | François-Armand-Auguste de Rohan-Soubise-Ventadour † | Cardinal, Bishop of Strasbourg, France |
| 29 Jun | | Born | Joseph Chrysostomus Pauer † | Wien | Bishop of Sankt Pölten, Austria |
| 6 Jul | | Born | François Antoine Marie Constantin de Méan et de Beaurieux † | Saive | Archbishop of Mechelen, Belgium |
| 16 Jul | 54.8 | Appointed | Francesco Felice Alberti d’Enno † | Titular Bishop of Miletopolis | Bishop of Trento, Italy |
| 54.8 | Confirmed | Francesco Felice Alberti d’Enno † | Coadjutor Bishop of Trento, Italy | Bishop |
| 19 Jul | 39.2 | Appointed | Giuseppe Maria Carafa † | Bishop of Mileto, Italy |
| 42.8 | Appointed | Vicente da Gamal Leao † | Coadjutor Bishop of São Sebastião do Rio de Janeiro, Brazil | Coadjutor Bishop Emeritus |
| 42.8 | Appointed | Vicente da Gamal Leao † | Titular Bishop of Etalonia | Coadjutor Bishop Emeritus of São Sebastião do Rio de Janeiro, Brazil |
| 52.4 | Appointed | Antônio de São José Moura Marinho, O.S.A. † | Bishop of São Luís do Maranhão, Brazil | Archbishop of São Salvador da Bahia, Brazil |
| 49.6 | Appointed | Manuel Antonio Palmero Rallo † | Bishop of Gerona, Spain |
| 22 Jul | 50.4 | Elevated to Cardinal | Franz Konrad Kasimir Ignaz Reichsfreiherr von Rodt † | Cardinal, Bishop of Konstanz {Constance}, Germany |
| 6 Aug | | Born | Antoine-Xavier Maynaud de Pancemont † | Digoin | Bishop of Vannes, France |
| 7 Aug | | Appointed | Augustine Cheevers, O.S.A. † | Bishop of Meath, Ireland |
| 8 Aug | 15.7 | Professed | Andrzej Antoni Ignacy Gawronski † | Member of Society of Jesus | Bishop of Kraków, Poland |
| Born | Lorenz Barlomiej Ignacy Antoni Raczynski, O. Cist. † | Czeradzen | Auxiliary Bishop of Gniezno, Poland |
| 11 Aug | | Appointed | Anthony Blake † | Bishop of Ardagh (and Clonmacnois), Ireland | Archbishop of Armagh, Ireland |
| 15 Aug | | Born | Agnello Giuseppe d'Auria † | Napoli | Bishop of Nocera de’ Pagani, Italy |
| 21 Aug | | Born | Johann Friedrich Graf von Waldenstein-Wartenberg † | Wien | Bishop of Seckau, Austria |
| 24 Aug | | Born | Pietro Paolo Mazzichi † | Assisi | Bishop of Montalto, Italy |
| 28 Aug | 41.9 | Appointed | Christoph Bartholomäus Anton Graf Migazzi † | Archbishop (Personal Title) of Vác, Hungary | Cardinal, Archbishop of Wien {Vienna}, Austria |
| 5 Sep | | Born | Giovanni Bonyonski † | Kiss-Jeszeniez | Auxiliary Bishop of Esztergom, Hungary |
| 10 Sep | | Born | José Maria de Melo † | Lumiar | Bishop Emeritus of Faro {Algarve}, Portugal |
| 52.2 | Died | Ignazio Rovèro † | Bishop of Novara, Italy |
| 11 Sep | | Born | Etienne-Hubert de Cambacérès † | Montpellier | Cardinal, Archbishop of Rouen, France |
| 62.6 | Appointed | Giuseppe Spinelli † | Prefect of the Congregation for Propagation of the Faith | Cardinal, Cardinal-Bishop of Ostia |
| 12 Sep | | Born | François-François Besson † | Seyssel | Bishop of Metz, France |
| 43.5 | Ordained Bishop | José Patricio de la Cuesta Velarde † | Bishop of Ceuta, Spain | Bishop of Sigüenza, Spain |
| Born | Manuel Ros Medrano † | Orense | Bishop of Tortosa, Spain |
| 20 Sep | 75.5 | Appointed | Joaquín Fernández Portocarrero † | Cardinal, Cardinal-Bishop of Sabina |
| 41.9 | Confirmed | Christoph Bartholomäus Anton Graf Migazzi † | Archbishop (Personal Title) of Vác, Hungary | Cardinal, Archbishop of Wien {Vienna}, Austria |
| 63.8 | Appointed | Camillo Paolucci † | Cardinal-Priest of S. Maria in Trastevere | Cardinal, Cardinal-Bishop of Porto e Santa Rufina |
| 59.0 | Appointed | Franz Ignaz Albert Reichsfreiherr von Werdenstein † | Auxiliary Bishop of Freising, Germany |
| 59.0 | Appointed | Franz Ignaz Albert Reichsfreiherr von Werdenstein † | Titular Bishop of Taenarum | Auxiliary Bishop of Freising, Germany |
| 21 Sep | 52.6 | Ordained Bishop | Antônio de São José Moura Marinho, O.S.A. † | Bishop of São Luís do Maranhão, Brazil | Archbishop of São Salvador da Bahia, Brazil |
| 23 Sep | 59.5 | Appointed | Louis-César-Constantin de Rohan-Guémené-Montbazon † | Cardinal, Bishop of Strasbourg, France |
| 30 Sep | | Born | Jerónimo Castellón Salas † | Ponzano | Bishop of Tarazona, Spain |
| 2 Oct | 73.7 | Died | Sebastián José Victoria Emparán y Loyola, O.S.H. † | Bishop of Urgell, Spain |
| 3 Oct | 42.4 | Ordained Bishop | Diego Antonio Díez Madroñero † | Bishop of Caracas, Santiago de Venezuela |
| 4 Oct | | Born | Juan Francisco Castañiza Larrea y Gonzalez de Agüero † | Mexico | Bishop of Durango, Durango, México |
| 5 Oct | | Born | Patrício da Silva, O.S.A. † | Pinheiros | Cardinal, Patriarch of Lisboa, Portugal |
| 10 Oct | | Born | Simon Melchior de Petris † | Ansberg | Vicar Apostolic Emeritus of Seckau, Austria |
| 20 Oct | 61.8 | Died | João da Cruz Salgado de Castilho, O.C.D. † | Bishop of Miranda, Portugal |
| 24 Oct | 23.0 | Ordained Priest | Giuseppe Maria Beneventi, O.F.M. Conv. † | Priest of Order of Friars Minor Conventual | Bishop of Muro Lucano, Italy |
| 43.1 | Ordained Bishop | Vicente da Gamal Leao † | Titular Bishop of Etalonia | Coadjutor Bishop Emeritus of São Sebastião do Rio de Janeiro, Brazil |
| 30 Oct | | Born | Giovanni Nepomuceno Ferdiani † | Cagliari | Bishop of Iglesias, Italy |
| 31 Oct | | Born | Paolo Garzilli † | Solofra | Bishop of Sessa Aurunca, Italy |
| 1 Nov | | Born | Domenico Orlando, O.F.M. Conv. † | Prizzi | Bishop of Catania, Italy |
| 14 Nov | 55.1 | Ordained Bishop | Francesco Felice Alberti d’Enno † | Titular Bishop of Miletopolis | Bishop of Trento, Italy |
| 19 Nov | 77.9 | Died | Martín de Elizacoechea † | Bishop of Michoacán, Michoacán, México |
| 21 Nov | 59.1 | Ordained Bishop | Franz Ignaz Albert Reichsfreiherr von Werdenstein † | Titular Bishop of Taenarum | Auxiliary Bishop of Freising, Germany |
| 25 Nov | | Born | Jean-Baptiste-François-Nicolas Millaux † | Châteaubourg | Bishop of Nevers, France |
| 28 Nov | | Born | Vitale Loschi † | Salso Maggiore | Bishop of Parma, Italy |
| Dec | 70.8 | Died | Franz Bernardin Verbeck, O.F.M. Conv. † | Auxiliary Bishop of Münster, Germany |
| 4 Dec | 71.8 | Died | Amand Buseck, O.S.B. † | Bishop of Fulda, Germany |
| 5 Dec | | Born | Mathias Le Groing de La Romagère † | Saint-Sauvier | Bishop of Saint-Brieuc, France |
| 8 Dec | | Born | Max Franz (Maximilian Franciscus) von Habsburg-Lothringen (Österreich) † | Wien | Archbishop of Köln {Cologne}, Germany |
| 11 Dec | 72.8 | Died | Gregorio Galindo † | Bishop of Lérida, Spain |
| 16 Dec | | Born | Tommaso Arezzo † | Orbetello | Cardinal, Official of the Roman Curia - Other |
| 21 Dec | 34.9 | Ordained Bishop | Charles Walmesley, O.S.B. † | Titular Bishop of Ramata | Vicar Apostolic of Western District, England, Great Britain |
| 23 Dec | | Born | Bartolomeo Pacca † | Benevento | Cardinal, Secretary of the Roman Curia - Other |
| 27 Dec | | Born | Arnaud-Ferdinand de La Porte † | Versailles | Bishop of Carcassonne, France |
| 29 Dec | | Resigned | Innocenzo Sanseverino † | Bishop of Alife, Italy | Bishop Emeritus |