| Date | Age | Event | Bishop | Title | Current Title |
|---|
| unknown | 62.8 | Appointed | Giovanni Maria Benzoni † | Bishop of Chioggia, Italy | Bishop Emeritus |
| Died | Bonaventura Blasio † | Bishop of Castellaneta, Italy |
| Died | Francesco Castello † | Bishop of Lettere-Gragnano, Italy |
| 35.2 | Appointed | Claude-Antoine de Choiseul-Beaupré † | Bishop of Chalons-sur-Marne, France |
| Died | Alessandro Dolfi † | Bishop of Fano, Italy |
| Died | Luke Fagan † | Archbishop of Dublin, Ireland |
| Appointed | Agostino Giannini † | Bishop of Lettere-Gragnano, Italy |
| 59.0 | Appointed | Stanisław Józef Hozjusz † | Bishop of Poznań, Poland |
| Born | Filippo Lancellotti † | Rome | Cardinal, Priest of the Roman Curia - Other |
| 34.3 | Ordained Bishop | Claude-Louis de La Chatre † | Bishop of Agde, France |
| Born | Vittorio Filippo Melano, O.P. † | Cuneo | Bishop of Novara, Italy |
| 64.5 | Died | Nuno Álvares Pereira de Melo † | Bishop of Lamego, Portugal |
| Appointed | Giovanni Soffietti † | Bishop of Adria, Italy |
| Died | Jan Feliks Szaniawski † | Bishop of Chelm, Poland |
| 62.2 | Appointed | Ladislav Szörényi † | Bishop of Sirmio, Croatia |
| 10 Jan | 81.4 | Died | Manuel Alvares da Costa † | Bishop of Angra, Portugal |
| 13 Jan | | Born | Joaquín Santiyán Valdivieso † | Arce | Archbishop of Tarragona, Spain |
| 18 Jan | | Ordained Bishop | Jean-Georges de Souillac † | Bishop of Lodève, France |
| 20 Jan | 78.2 | Died | Pierre de Sabatier † | Bishop of Amiens, France |
| 25 Jan | 69.1 | Ordained Bishop | Juan de Arregui, O.F.M. † | Bishop of Buenos Aires, Argentina |
| 27 Jan | | Born | Joseph Adam Graf Arco † | Salzburg | Bishop of Seckau, Austria |
| 16 Feb | 53.1 | Died | Juan Antonio de Lardizabal y Elorza † | Bishop of Tlaxcala, Tlaxcala, México |
| 19 Feb | | Born | Ignace-François de Joannis de Verclos † | Avignon | Bishop of Acci and Mariana, France |
| 28 Feb | | Died | Giovanni Battista Lomellino † | Bishop of Salzburg, Austria |
| 2 Mar | 33.5 | Appointed | Giovanni Bragadino (Bragadin) † | Bishop of Verona, Italy | Patriarch of Venezia {Venice}, Italy |
| 47.8 | Appointed | Neri Maria Corsini † | Cardinal, Prefect of the Apostolic Signatura |
| Died | Bernardo Serrada, O.C. † | Bishop of Cuzco, Peru |
| 5 Mar | 36.9 | Appointed | Johann Rudolf Graf von Sporck † | Auxiliary Bishop of Praha {Prague}, Czech Republic |
| 6 Mar | | Born | Filippo Casoni † | Sarzana | Cardinal, Secretary Emeritus of the Secretariat of State |
| 10 Mar | | Born | Jean-Pierre Saurine † | Eysus | Bishop of Strasbourg, France |
| 12 Mar | | Born | Emilio Gentile † | Biccari | Bishop of Alife, Italy |
| 15 Mar | 33.6 | Ordained Bishop | Giovanni Bragadino (Bragadin) † | Bishop of Verona, Italy | Patriarch of Venezia {Venice}, Italy |
| 30 Mar | 61.1 | Died | Luis Simões Brandão † | Bishop Emeritus of Angola e Congo, Angola |
| 4 Apr | 26.8 | Ordained Priest | James Grant † | Priest | Vicar Apostolic of Lowland District, Scotland, Great Britain |
| 9 Apr | 65.6 | Died | Bartolomeu do Pilar, O. Carm. † | Bishop of Belém do Pará, Brazil |
| 10 Apr | 77.2 | Died | Daniel Joseph Mayer † | Archbishop of Praha {Prague}, Czech Republic |
| 11 Apr | 70.0 | Died | José Fernández del Toro † | Bishop Emeritus of Oviedo, Spain |
| 18 Apr | 63.3 | Died | Louis de La Vergne-Montenard de Tressan † | Archbishop of Rouen, France |
| 23 Apr | 45.1 | Died | Thomaz Franciszek Czapski, O. Cist. † | Bishop of Chelmno (Culma), Poland |
| 4 May | 61.5 | Died | Pedro Espinosa de los Monteros, O.F.M. † | Bishop of Jaca, Spain |
| 7 May | 71.3 | Died | Jean Le Normant † | Bishop of Evreux, France |
| 11 May | 42.1 | Appointed | Massenzio dei Conti Filo † | Bishop of Castellaneta, Italy |
| 29 May | | Born | Giovanni Battista Caprara Montecuccoli † | Bologna | Cardinal, Archbishop of Milano {Milan}, Italy |
| 30 May | 23.0 | Ordained Priest | Carlo Gagliardi † | Priest | Bishop of Muro Lucano, Italy |
| 26.8 | Ordained Priest | Cristoforo Sizzo de Noris † | Priest of Trento, Italy | Bishop |
| 2 Jun | 56.0 | Died | Johann Adam Reichsgraf von Wratislaw von Mitrowitz † | Bishop of Litomĕrice, Czech Republic |
| 9 Jun | 71.0 | Died | Louis-Gaston Fleuriau d'Armenonville † | Bishop of Orléans, France |
| 53.2 | Succeeded | Nicolas-Joseph de Paris † | Bishop of Orléans, France |
| 20 Jun | 64.7 | Died | Caspar Adolph Schnernauer † | Auxiliary Bishop of Mainz, Germany |
| 22 Jun | 34.8 | Appointed | Adam Stanisław Grabowski † | Auxiliary Bishop of Poznań, Poland | Bishop of Warmia, Poland |
| 34.8 | Appointed | Adam Stanisław Grabowski † | Titular Bishop of Nilopolis | Bishop of Warmia, Poland |
| 57.0 | Appointed | Johann Moritz Gustav Reichsgraf von Manderscheid-Blankenheim † | Archbishop of Praha {Prague}, Czech Republic |
| 30 Jun | 79.2 | Died | John Wallace † | Coadjutor Vicar Apostolic of Lowland District, Scotland, Great Britain |
| 4 Jul | 30.6 | Appointed | Moritz Adolf Karl Herzog von Sachsen-Zeitz (Saský) † | Bishop of Litomĕrice, Czech Republic |
| 6 Jul | 39.4 | Appointed | Johann Joseph von Wratislaw von Mitrowitz † | Bishop of Hradec Králové, Czech Republic |
| 10 Jul | 74.5 | Died | Jacinto Olivera y Pardo † | Bishop of Chiapas (Ciudad Real de Chiapas), Chiapas, México |
| 13 Jul | 65.0 | Died | Juan Ignacio de Castorena y Ursúa y Goyeneche † | Bishop of Yucatán (Mérida), Yucatán, México |
| 26 Jul | | Born | Ludovico Flangini Giovanelli † | Venezia | Cardinal, Patriarch of Venezia {Venice}, Italy |
| 8 Aug | 70.3 | Died | Carlos Borja Centellas y Ponce de León † | Cardinal, Patriarch of West Indies, Spain |
| 18 Aug | 35.0 | Ordained Bishop | Adam Stanisław Grabowski † | Titular Bishop of Nilopolis | Bishop of Warmia, Poland |
| 19 Aug | | Appointed | Giacomo Beni † | Bishop of Fano, Italy |
| 24 Aug | | Born | Bartolomé Antonio Fernández Sobrado, O.F.M. Cap. † | Benaocaz | Bishop of Ceuta, Spain |
| 28 Aug | 37.7 | Appointed | Jean-François de La Cropte de Bourzac † | Bishop of Noyon, France |
| 35.5 | Appointed | Pierre-Jules-César de Rochechouard-Montigny † | Bishop of Evreux, France | Bishop Emeritus of Bayeux, France |
| 37.9 | Appointed | Claude de Rouvroy de Saint-Simon † | Bishop of Metz, France |
| 43.0 | Appointed | Nicolas-Charles de Saulx-Tavannes † | Cardinal, Archbishop of Rouen, France |
| 30 Aug | 64.7 | Died | Jean-Paul-François Le Févre de Caumartin † | Bishop of Blois, France |
| Sep | 50.6 | Appointed | Louis-François-Gabriel d'Orléans de La Motte † | Bishop of Amiens, France |
| 2 Sep | 42.1 | Appointed | Meinwerk Kaup, O.S.B. † | Auxiliary Bishop of Paderborn, Germany |
| 42.1 | Appointed | Meinwerk Kaup, O.S.B. † | Titular Bishop of Callinicum | Auxiliary Bishop of Paderborn, Germany |
| 12 Sep | 42.5 | Succeeded | Pierre-Herman Dosquet, P.S.S. † | Bishop of Québec, Québec, Canada | Bishop Emeritus |
| 70.0 | Resigned | Louis-François Du Plessis de Mornay, O.F.M. Cap. † | Bishop of Québec, Québec, Canada | Bishop Emeritus |
| 18 Sep | 60.7 | Died | Jean-Armand de La Vove de Tourouvre † | Bishop of Rodez, France |
| 27 Sep | | Born | Giovanni Battista Quarantotti † | Rome | Cardinal, Prefect of the Congregation for Propagation of the Faith |
| 28 Sep | 43.4 | Appointed | João da Madre de Deus Seixas da Fonseca Borges, O.S.B. † | Titular Bishop of Areopolis |
| 1 Oct | 30.8 | Confirmed | Moritz Adolf Karl Herzog von Sachsen-Zeitz (Saský) † | Bishop of Litomĕrice, Czech Republic |
| 4 Oct | 43.4 | Ordained Bishop | João da Madre de Deus Seixas da Fonseca Borges, O.S.B. † | Titular Bishop of Areopolis |
| 9 Oct | | Born | François-Camille de Duranti de Lironcourt † | Paris | Bishop of Bethléem, France |
| 20 Oct | | Born | Adam Stanisław Naruszewicz † | | Bishop of Luceoria o Łuck e Zytomir o Zytomierz, Ukraine |
| 22 Oct | | Born | Manuel Azamor y Ramírez † | Villablanca, Spain | Bishop of Buenos Aires, Argentina |
| 31 Oct | 64.0 | Died | Gaetano Iovone † | Bishop of Alife, Italy |
| Died | Juan Lancaster (or Alencaster) Norona † | Bishop of Cuenca, Spain |
| Nov | | Born | Giuseppe Maria Beneventi, O.F.M. Conv. † | Albano | Bishop of Muro Lucano, Italy |
| 1 Nov | 42.3 | Ordained Bishop | Meinwerk Kaup, O.S.B. † | Titular Bishop of Callinicum | Auxiliary Bishop of Paderborn, Germany |
| 2 Nov | 41.8 | Died | Pierre de Pardaillan de Gondrin d'Autin † | Bishop of Langres, France |
| 12 Nov | | Born | Carlo Scribani Rossi † | Piacenza | Bishop of Piacenza, Italy |
| 20 Nov | | Born | Félix Rico Rico † | Castalla | Bishop of Teruel, Spain |
| 22 Nov | 53.9 | Ordained Bishop | Salvador Bermúdez y Becerra † | Bishop of Concepción, Chile | Archbishop of La Plata o Charcas, Bolivia |
| Ordained Bishop | François d'Andigné † | Bishop of Acqs (Dax), France |
| Born | Paolantonio Agostini Zamperoli † | Pesaro | Bishop of Urbania-Sant’Angelo in Vado, Italy |
| Dec | | Born | Giovanni Vincenzo Monforte † | Sorrento | Archbishop of Napoli {Naples}, Italy |
| 2 Dec | 54.1 | Appointed | Thomas Philip Wallrad d'Alsace-Boussut de Chimay † | Cardinal-Priest of S. Balbina | Cardinal, Archbishop of Mechelen, Belgium |
| 56.8 | Appointed | Blas Antonio Olóriz † | Auxiliary Bishop of Monreale, Italy |
| 56.8 | Appointed | Blas Antonio Olóriz † | Titular Bishop of Thagaste | Auxiliary Bishop of Monreale, Italy |
| 63.3 | Appointed | Bartolomé San Martín Orive † | Bishop of Palencia, Spain |
| 7 Dec | 31.0 | Installed | Moritz Adolf Karl Herzog von Sachsen-Zeitz (Saský) † | Bishop of Litomĕrice, Czech Republic |
| 11 Dec | | Born | Jean-Arnauld de Castellane † | Pont-Saint-Esprit | Bishop of Mende, France |
| 12 Dec | | Born | Mikolaj Duchnowski † | Siemiatycze | Bishop of Foreign Diocese |
| 13 Dec | 56.9 | Ordained Bishop | Blas Antonio Olóriz † | Titular Bishop of Thagaste | Auxiliary Bishop of Monreale, Italy |
| 14 Dec | | Born | Ildefonso Molina Santaella † | Arjona | Bishop of Ciudad Rodrigo, Spain |
| 18 Dec | 57.0 | Appointed | Pietro Abbondio Battiloro † | Bishop of Alife, Italy |
| 57.6 | Appointed | Serafino Cenci † | Cardinal, Archbishop of Benevento, Italy |
| 57.5 | Confirmed | Johann Moritz Gustav Reichsgraf von Manderscheid-Blankenheim † | Archbishop of Praha {Prague}, Czech Republic |
| 43.6 | Appointed | Christoph Nebel † | Auxiliary Bishop of Mainz, Germany |
| 43.6 | Appointed | Christoph Nebel † | Titular Bishop of Capharnaum | Auxiliary Bishop of Mainz, Germany |
| 43.3 | Confirmed | Nicolas-Charles de Saulx-Tavannes † | Cardinal, Archbishop of Rouen, France |
| 39.9 | Confirmed | Johann Joseph von Wratislaw von Mitrowitz † | Bishop of Hradec Králové, Czech Republic |
| 26 Dec | 57.6 | Ordained Bishop | Serafino Cenci † | Cardinal, Archbishop of Benevento, Italy |
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