| Date | Age | Event | Bishop | Title | Current Title |
|---|
| unknown | | Appointed | Cristóvão de Almeida Soares † | Bishop of Pinhel, Portugal |
| Appointed | Tiberio Borghesi † | Archbishop of Siena, Italy |
| Died | Alessandro Cervini † | Archbishop of Siena, Italy |
| 31.7 | Ordained Bishop | François Citadella † | Bishop of Nebbio, France | Bishop of Acci and Mariana, France |
| 44.0 | Appointed | François de Clugny † | Bishop of Riez, France | Bishop Emeritus |
| 43.0 | Appointed | Louis-Emmanuel de Cugnac † | Bishop of Lectoure, France |
| 47.9 | Appointed | Joseph-François d'Andigné de la Chasse † | Bishop of Chalons-sur-Saône, France | Bishop Emeritus |
| Died | António Caetano da Rocha † | Bishop of Angra, Portugal |
| Appointed | Nicolò Antonio Giustiniani † | Bishop of Padova {Padua}, Italy |
| 51.1 | Appointed | François-Mattieu Guasco † | Bishop of Sagone, France |
| 43.0 | Appointed | Jean-François de La Marche † | Bishop of Saint-Pol-de-Léon, France |
| Appointed | Gioacchino Paglione † | Bishop of Trivento, Italy |
| Appointed | Salvatore Pisano † | Bishop of Patti, Italy |
| Died | Giuseppe Antonio de Requisenz † | Bishop of Siracusa, Italy |
| 23.1 | Ordained Priest | Gregory Stapleton † | Priest | Vicar Apostolic of Midland District, England, Great Britain |
| Appointed | Nicolas Stefanini † | Bishop of Acci and Mariana, France |
| Died | Nicolau Joaquim Torel da Cunha Manuel † | Bishop of Lamego, Portugal |
| 1 Jan | | Born | Gabriele Papa † | Vietri | Archbishop of Sorrento, Italy |
| 16 Jan | 52.5 | Appointed | Franz Karl Reichsgraf von Velbrück † | Bishop of Liège, Belgium |
| 18 Jan | 37.0 | Ordained Bishop | Emmanuel-Louis de Grossoles de Flamarens † | Bishop of Quimper, France | Bishop of Périgueux (Vesuna), France |
| 19 Jan | | Born | Antonio de Franci † | Filacciano | Auxiliary Bishop of Ostia (-Velletri), Italy |
| 22 Jan | 61.7 | Appointed | Louis-Philippe-François Mariauchau d'Esglis † | Coadjutor Bishop of Québec, Québec, Canada | Bishop |
| 61.7 | Appointed | Louis-Philippe-François Mariauchau d'Esglis † | Titular Bishop of Dorylaëum | Bishop of Québec, Québec, Canada |
| 23 Jan | 60.1 | Installed | Jean de Cairol de Madaillan † | Bishop of Grenoble, France | Bishop Emeritus |
| 27 Jan | 60.5 | Appointed | Carl Laurenz Cardona † | Prefect of Meissen (Meißen) {Lusazia o Lausitz; Sassonia}, Germany |
| 46.2 | Appointed | Giuseppe Garampi † | Titular Archbishop of Berytus | Cardinal, Bishop of Montefiascone, Italy |
| 29 Jan | 70.9 | Installed | Antonio Alcalde y Barriga, O.P. † | Bishop of Guadalajara, Jalisco, México |
| 31 Jan | | Born | José María de Jesús Belaunzarán y Ureña, O.F.M. † | México | Bishop Emeritus of Linares o Nueva León, Nuevo León, México |
| Feb | 25.5 | Ordained Priest | Jean Labartette, M.E.P. † | Priest of La Société des Missions Etrangères | Vicar Apostolic of Cochin {Cocincina}, Viêt Nam |
| 2 Feb | 24.5 | Ordained Priest | Alexander Cameron † | Priest | Vicar Apostolic Emeritus of Lowland District, Scotland, Great Britain |
| 66.3 | Ordained Bishop | Johann Wenzel Xaver Freiherr Frey von Freyenfels † | Auxiliary Bishop of Olomouc, Czech Republic |
| 22.9 | Ordained Priest | Michele de Vincenti † | Priest | Titular Bishop of Erythrae |
| 9 Feb | 46.3 | Ordained Bishop | Giuseppe Garampi † | Titular Archbishop of Berytus | Cardinal, Bishop of Montefiascone, Italy |
| 39.1 | Ordained Bishop | Joaquín Santiyán Valdivieso † | Bishop of Urgell, Spain | Archbishop of Tarragona, Spain |
| 15 Feb | | Born | Andrew Scott † | Chapelford, Enzie | Vicar Apostolic Emeritus of Western District, Scotland, Great Britain |
| 22 Feb | | Installed | Miguel António Barreto de Meneses † | Bishop of Bragança, Portugal | Bishop of Miranda, Portugal |
| 24 Feb | 75.3 | Died | Nicola Perrelli † | Cardinal, Cardinal-Deacon of S. Giorgio in Velabro |
| 29 Feb | 44.5 | Appointed | Johann Baptist Joseph Gobel † | Auxiliary Bishop of Basel, Switzerland | Auxiliary Bishop Emeritus |
| 44.5 | Appointed | Johann Baptist Joseph Gobel † | Titular Bishop of Lydda | Auxiliary Bishop Emeritus of Basel, Switzerland |
| 1 Mar | 43.6 | Ordained Bishop | Charles-Auguste Le Quien de La Neufville † | Bishop of Acqs (Dax), France | Bishop Emeritus |
| 2 Mar | | Born | José Buenaventura Arias Bergara † | El Arenal | Vicar Apostolic of Mérida, Venezuela |
| 7 Mar | | Born | Thomas Penswick † | Ashton-in-Makerfield | Vicar Apostolic of Northern District, England, Great Britain |
| 13 Mar | | Born | Giovanni Bindi Sergardi † | Siena | Bishop of Montalcino, Italy |
| 14 Mar | 39.8 | Appointed | Hieronymus Joseph Franz de Paula Graf Colloredo von Wallsee und Mels † | Archbishop of Salzburg, Austria |
| 15 Mar | 50.7 | Ordained Bishop | Antoine-René Bardonnenche † | Bishop of Vence, France |
| 34.2 | Ordained Bishop | Louis-Charles de Machaut † | Titular Bishop of Europus | Bishop Emeritus of Amiens, France |
| 20 Mar | 46.4 | Appointed | Giuseppe Garampi † | Apostolic Nuncio to Poland | Cardinal, Bishop of Montefiascone, Italy |
| Born | Carlo Emmanuelle Sardagna de Hohenstein † | Trento | Bishop Emeritus of Cremona, Italy |
| 28 Mar | 67.2 | Died | Lucretius-Henri-François de La Tour du Pin † | Bishop of Riez, France |
| 30 Mar | 65.6 | Appointed | Francesco Maria Banditi, C.R. † | Bishop of Montefiascone, Italy | Cardinal, Archbishop of Benevento, Italy |
| 58.8 | Appointed | Francisco Garrido de la Vega † | Bishop of Córdoba, Spain |
| 42.4 | Appointed | Iledfonso Núñez de Haro y Peralta † | Archbishop of México, Federal District |
| 52.7 | Confirmed | Franz Karl Reichsgraf von Velbrück † | Bishop of Liège, Belgium |
| 31 Mar | | Born | Franz Ferdinand (Johann Franz) Fritz, O.S.B. † | Hildesheim | Bishop of Hildesheim, Germany |
| Born | Tommaso Antonio Gigli, O.F.M. Conv. † | Grottole | Bishop of Muro Lucano, Italy |
| 4 Apr | 30.4 | Ordained Priest | Nicola Laparelli † | Priest of Cortona, Italy | Bishop |
| 23.0 | Ordained Priest | Luis Ignatius Peñalver y Cárdenas † | Priest of Santiago de Cuba | Archbishop Emeritus of Guatemala |
| 5 Apr | 65.6 | Ordained Bishop | Francesco Maria Banditi, C.R. † | Bishop of Montefiascone, Italy | Cardinal, Archbishop of Benevento, Italy |
| 14 Apr | 39.9 | Confirmed | Hieronymus Joseph Franz de Paula Graf Colloredo von Wallsee und Mels † | Archbishop of Salzburg, Austria |
| 22 Apr | | Born | José Jorge Torres Estans † | Cartagena | Bishop of Nueva Pamplona, Colombia |
| 24 Apr | 64.1 | Died | José Vicente Díaz Bravo, O. Carm. † | Bishop of Durango, Durango, México |
| 26 Apr | 48.3 | Ordained Bishop | François-Fiacre de Grave † | Bishop of Valence, France |
| 52.8 | Ordained Priest | Franz Karl Reichsgraf von Velbrück † | Priest of Liège, Belgium | Bishop |
| 29 Apr | 39.9 | Installed | Hieronymus Joseph Franz de Paula Graf Colloredo von Wallsee und Mels † | Archbishop of Salzburg, Austria |
| May | | Ordained Bishop | Gabriel-Louis de Rougé † | Bishop of Périgueux (Vesuna), France |
| 1 May | 31.0 | Ordained Priest | Lorenzo Caleppi † | Priest | Cardinal, Apostolic Nuncio to Portugal |
| 5 May | 52.8 | Ordained Bishop | Franz Karl Reichsgraf von Velbrück † | Bishop of Liège, Belgium |
| 22 May | 44.7 | Ordained Bishop | Johann Baptist Joseph Gobel † | Titular Bishop of Lydda | Auxiliary Bishop Emeritus of Basel, Switzerland |
| 75.4 | Retired | Étienne-René Potier de Gesvres † | Bishop of Beauvais, France | Cardinal, Bishop Emeritus |
| 23 May | | Born | John Murphy † | Shandon | Bishop of Cork, Ireland |
| 25 May | 57.3 | Installed | Manuel Jiménez Pérez, O.S.B. † | Bishop of Puerto Rico (Porto Rico) |
| 27 May | 75.4 | Died | Pedro Anselmo Sánchez de Tagle † | Bishop of Michoacán, Michoacán, México |
| 1 Jun | 45.3 | Appointed | Francesco Maria Locatelli † | Cardinal, Bishop of Spoleto, Italy |
| 39.8 | Appointed | Johann Andreas Seelmann † | Auxiliary Bishop of Speyer, Germany |
| 39.8 | Appointed | Johann Andreas Seelmann † | Titular Bishop of Tremithus | Auxiliary Bishop of Speyer, Germany |
| 8 Jun | 45.3 | Ordained Bishop | Francesco Maria Locatelli † | Cardinal, Bishop of Spoleto, Italy |
| 13 Jun | 24.2 | Ordained Priest | Joseph Anton Gall † | Priest of Speyer, Germany | Bishop of Linz, Austria |
| 24.0 | Ordained Priest | Lorenzo Girolamo Mattei † | Priest | Cardinal, Archbishop of the unknown of Titular See |
| 62.4 | Died | Louis-Henri de Rochefort d'Ally † | Bishop of Chalons-sur-Saône, France |
| 23.7 | Ordained Priest | Felix Graf von Stubenberg † | Priest of Salzburg, Austria | Auxiliary Bishop of Eichstätt, Germany |
| 17 Jun | | Born | Juan Antonio Díez Merino, O.P. † | Iniesta | Bishop of Menorca, Spain |
| 18 Jun | 261.5 | Beatified | Bl. Paul Burali d'Arezzo, C.R. † | Cardinal, Archbishop of Napoli {Naples}, Italy |
| 21 Jun | 44.5 | Ordained Bishop | François de Clugny † | Bishop of Riez, France | Bishop Emeritus |
| 22 Jun | 76.2 | Appointed | Deigo Bernardo de Peredo y Navarrete † | Bishop of Yucatán (Mérida), Yucatán, México |
| 46.0 | Appointed | Juan Díaz de La Guerra † | Bishop of Mallorca, Spain | Bishop of Sigüenza, Spain |
| 37.5 | Ordained Bishop | François-Joseph de La Rochefoucauld-Bayers † | Bishop of Beauvais, France |
| 26 Jun | 59.5 | Died | Pierre Chapelle de Jumilhac de Cubjac † | Bishop of Lectoure, France |
| 28 Jun | 46.0 | Ordained Bishop | Juan Díaz de La Guerra † | Bishop of Mallorca, Spain | Bishop of Sigüenza, Spain |
| 39.9 | Ordained Bishop | Johann Andreas Seelmann † | Titular Bishop of Tremithus | Auxiliary Bishop of Speyer, Germany |
| 6 Jul | 70.9 | Died | Franz Karl Eusebius Graf von Waldburg-Friedberg und Trauchburg † | Bishop of Chiemsee, Germany |
| 7 Jul | 58.8 | Died | Tomás Azpuru Ximénez † | Archbishop of Valencia, Spain |
| 59.5 | Died | Tomás de Azpuru de Mellá † | Archbishop of Valencia, Spain |
| 12 Jul | 62.2 | Ordained Bishop | Louis-Philippe-François Mariauchau d'Esglis † | Titular Bishop of Dorylaëum | Bishop of Québec, Québec, Canada |
| 17 Jul | 81.9 | Died | Bartolomé Rajoy Losada † | Archbishop of Santiago de Compostela, Spain |
| 27 Jul | 76.3 | Installed | Deigo Bernardo de Peredo y Navarrete † | Bishop of Yucatán (Mérida), Yucatán, México |
| 6 Aug | 24.8 | Professed | Tadeusz Kundzicz † | Member of Society of Jesus | Auxiliary Bishop of Vilnius, Lithuania |
| Born | Félix Torres Amat † | Sallent | Bishop of Astorga, Spain |
| 9 Aug | 51.9 | Ordained Bishop | Francisco de los Ríos y Armengol, O.P. † | Bishop of Panamá |
| 3 Sep | | Born | Justo Santa María de Oro y Albarracín, O.P. † | San Juan de la Frontera | Bishop of San Juan de Cuyo, Argentina |
| 7 Sep | 52.2 | Appointed | Agustín de Alvarado y Castillo † | Bishop of Cartagena, Colombia | Bishop of Ciudad Rodrigo, Spain |
| 34.0 | Appointed | Agustín Ayestarán Landa † | Auxiliary Bishop of Sevilla {Seville}, Spain | Bishop of Córdoba, Spain |
| 34.0 | Appointed | Agustín Ayestarán Landa † | Titular Bishop of Botrys | Bishop of Córdoba, Spain |
| 43.7 | Ordained Bishop | Jean-François de La Marche † | Bishop of Saint-Pol-de-Léon, France |
| 8 Sep | 46.7 | Ordained Bishop | Pierre-Joseph de Lastic-Lescure † | Bishop of Rieux, France | Bishop Emeritus |
| 9 Sep | 84.5 | Died | José Mezquía Díaz de Arrízola, O. de M. † | Bishop of Solsona, Spain |
| Born | Jacinto Rodríguez Rico † | Villamayor | Bishop of Cuenca, Ecuador |
| 13 Sep | 42.9 | Ordained Bishop | Iledfonso Núñez de Haro y Peralta † | Archbishop of México, Federal District |
| 19 Sep | 23.8 | Ordained Priest | Eugenio Giovanni Battista Giuseppe Cerina, O.F.M. † | Priest of Order of Friars Minor | Titular Bishop of Sergiopolis |
| 31.7 | Ordained Priest | Filippo Ganucci † | Priest of Society of Jesus | Bishop of Livorno, Italy |
| 24.2 | Ordained Priest | Joseph Jakob von Heckenstaller † | Priest of Regensburg, Germany | Vicar Apostolic Emeritus of Freising, Germany |
| 23 Sep | 42.9 | Installed | Iledfonso Núñez de Haro y Peralta † | Archbishop of México, Federal District |
| 27 Sep | 43.7 | Ordained Bishop | Louis-Emmanuel de Cugnac † | Bishop of Lectoure, France |
| 13 Oct | | Born | Carlo Zen † | Venezia, Italy | Apostolic Nuncio to Other |
| 15 Oct | | Born | Paul-Thérèse-David d'Astros † | Tourves | Cardinal, Archbishop of Toulouse (-Narbonne), France |
| 18 Oct | 38.7 | Appointed | Joseph Franz Anton von Auersperg † | Bishop of Gurk, Austria | Cardinal, Bishop of Passau, Germany |
| 53.7 | Appointed | Ferdinand Christoph Graf von Waldburg-Zeil † | Bishop of Chiemsee, Germany |
| 26 Oct | 65.2 | Died | Antonio Maria Priuli † | Cardinal, Bishop of Padova {Padua}, Italy |
| Nov | | Died | Gabriel-Louis de Rougé † | Bishop of Périgueux (Vesuna), France |
| Appointed | Pedro de Melo e Brito da Silveira Alvim † | Bishop of Portalegre, Portugal |
| 2 Nov | | Born | Ján Krstitel Ladislav Pyrker (Pryker), O. Cist. † | Nagyláng, Hungary | Archbishop of Eger, Hungary |
| 10 Nov | 72.3 | Died | Diego Rojas Contreras † | Bishop of Cartagena (en España) |
| Appointed | Manuel de Vasconcellos Pereira † | Bishop of Lamego, Portugal |
| 15 Nov | 22.6 | Ordained Priest | Manuel Pacheco de Resende † | Priest | Bishop of Aveiro, Portugal |
| 17 Nov | | Born | Giorgio Doria Pamphilj Landi † | Rome | Cardinal, Prefect of the Congregation of Rites |
| 18 Nov | 81.7 | Died | Francesco Lanfreschi † | Archbishop Emeritus of Acerenza e Matera, Italy |
| 22 Nov | 69.3 | Died | Leopold Josef Hannibal Graf Petazzi de Castel Nuovo † | Bishop of Ljubljana, Slovenia |
| 66.5 | Died | Felipe Antonio Perales Mercado † | Bishop of Barbastro, Spain |
| 25 Nov | 24.7 | Ordained Priest | Francesco Chiarchiaro † | Priest | Titular Bishop of Lampsacus |
| 28 Nov | 53.4 | Succeeded | Karl Johann Reichsgraf von Herberstein † | Bishop of Ljubljana, Slovenia |
| 29 Nov | 34.2 | Ordained Bishop | Agustín Ayestarán Landa † | Titular Bishop of Botrys | Bishop of Córdoba, Spain |
| 5 Dec | 53.4 | Installed | Karl Johann Reichsgraf von Herberstein † | Bishop of Ljubljana, Slovenia |
| 14 Dec | | Born | Giovanni Giuseppe Cappellari † | Rigolato | Bishop of Vicenza, Italy |
| 64.2 | Appointed | Leopold Ernst von Firmian † | Cardinal-Priest of S. Pietro in Montorio | Cardinal, Bishop of Passau, Germany |
| 64.2 | Elevated to Cardinal | Leopold Ernst von Firmian † | Cardinal, Bishop of Passau, Germany |
| 54.7 | Appointed | Antonio Macarulla Minguilla de Aguilain † | Bishop of Durango, Durango, México |
| 48.6 | Appointed | Carlo Rezzonico (Jr.) † | Cardinal-Priest of S. Marco | Cardinal, Cardinal-Bishop of Porto e Santa Rufina |
| 19 Dec | 23.1 | Ordained Priest | Václav (Wenzel) Léopold Ritter von Chlumčansky † | Priest of Praha {Prague}, Czech Republic | Archbishop |
| 22 Dec | 63.0 | Died | Simon Ambros Stock † | Titular Bishop of the unknown of Titular See |
| 26 Dec | | Born | Aloisio San Vitale † | Parma | Bishop of Piacenza, Italy |
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