| Date | Age | Event | Bishop | Title | Current Title |
|---|
| unknown | 32.6 | Appointed | Álvaro de Abranches e Noronha † | Bishop of Leiria, Portugal |
| Appointed | Isidoro Aparici Gilart † | Auxiliary Bishop of Valencia, Spain |
| Appointed | Isidoro Aparici Gilart † | Titular Bishop of Croae | Auxiliary Bishop of Valencia, Spain |
| Appointed | Bento de Beja Noronha † | Bishop of Elvas, Portugal |
| Died | Giulio Giacomo Castellani, O.S.A. † | Bishop of Cagli, Italy |
| Appointed | François Chevalier de Saulx † | Bishop of Alčs (Alais), France |
| Appointed | Carlo Cutillo † | Bishop of Minori, Italy |
| Born | Jean-François Dondel † | Vannes | Bishop of Dol, France |
| 66.4 | Ordained Bishop | Martín de Híjar y Mendoza, O.S.A. † | Bishop of Concepción, Chile |
| Born | Charles-Guy Le Borgne de Kermorvan † | Léon | Bishop of Tréguier, France |
| Died | José de Lencastre † | Bishop of Leiria, Portugal |
| Born | Jacques Le Févre du Quesnoy † | Golleville | Bishop of Coutances, France |
| Appointed | Benedetto Luperti † | Bishop of Cagli, Italy |
| 50.0 | Appointed | Rodrigo de Moura Telles † | Bishop of Guarda, Portugal | Archbishop of Braga, Portugal |
| Appointed | Bartolomé de Ocampo y Mata † | Bishop of Segovia, Spain | Bishop of Plasencia, Spain |
| Appointed | Séraphin de Pajot de Plouy † | Bishop of Die, France |
| 27.9 | Ordained Priest | Johann Franz Riccius † | Priest of Strasbourg, France | Auxiliary Bishop |
| Died | Louis-Marie-Armand de Simiane de Gordes † | Bishop of Langres, France |
| Born | Alexander Smith † | Fochabers, Moray | Vicar Apostolic of Lowland District, Scotland, Great Britain |
| Appointed | Jerónimo Soares † | Bishop of Viseu, Portugal |
| Appointed | António Vieira Leităo † | Bishop of Angra, Portugal |
| Appointed | Konstantyn Józef Zielinski † | Auxiliary Bishop of Gniezno, Poland |
| Appointed | Konstantyn Józef Zielinski † | Titular Bishop of Hierapolis in Isauria | Auxiliary Bishop of Gniezno, Poland |
| 3 Jan | 44.4 | Ordained Bishop | Georg Sigismund von Sinnersberg † | Titular Bishop of Nicopolis ad Iaterum | Auxiliary Bishop of Trento, Italy |
| 4 Jan | 38.3 | Confirmed | Lothar Franz Reichsgraf von Schönborn † | Bishop of Bamberg, Germany | Archbishop of Mainz, Germany |
| 10 Jan | 46.0 | Ordained Bishop | Augustin de Maupeou † | Bishop of Castres, France | Archbishop of Auch, France |
| 18 Jan | 22.1 | Appointed | Joseph Clemens von Bayern von Wittelsbach † | Coadjutor Bishop of Hildesheim, Germany | Archbishop of Köln {Cologne}, Germany |
| 24 Jan | | Ordained Bishop | Jacques des Maretz † | Bishop of Riez, France | Archbishop of Auch, France |
| 25 Jan | 25.0 | Ordained Priest | Pablo Vilana Perlas † | Priest | Archbishop of Palermo, Italy |
| 1 Feb | 73.3 | Died | Jean Louis d'Elderen † | Bishop of Ličge, Belgium |
| Born | Giuseppe Spinelli † | Naples | Cardinal, Cardinal-Bishop of Ostia |
| 6 Feb | | Born | Johann Joseph von Wratislaw von Mitrowitz † | Deschna | Bishop of Hradec Králové, Czech Republic |
| 11 Feb | 69.8 | Died | Johann Daniel von Gudenus † | Auxiliary Bishop of Mainz, Germany |
| 18 Feb | | Born | Valentín Moran Menéndez, O. de M. † | Cabruńa, Spain | Bishop Emeritus of Islas Canarias {Canary Islands}, Spain |
| 78.4 | Died | Giuseppe Saggese † | Bishop of Ravello, Italy |
| 74.1 | Installed | Kazimierz Szczuka † | Bishop of Chelmno (Culma), Poland |
| 25 Feb | 47.1 | Ordained Bishop | Mathieu Ysoré d'Hervault † | Archbishop of Tours, France |
| 5 Mar | | Born | Eusebio Oscot, O.P. † | Las Llanas, Spain | Vicar Apostolic of Fo-Kien, China |
| 6 Mar | 27.8 | Ordained Priest | Lodovico Forni † | Priest | Bishop Emeritus of Reggio Emilia, Italy |
| 10 Mar | | Born | Isidro de Arevalo † | Cebu | Bishop of Nueva Caceres, Philippines |
| 14 Mar | | Born | José Ignacio Rodríguez Cornejo † | Almonacid | Bishop of Plasencia, Spain |
| 15 Mar | | Appointed | Luigi (Ludovico) Capuano (de Capua) † | Bishop of Ravello, Italy | Bishop of Gravina, Italy |
| 30 Mar | | Born | Blas Roldán, O.S.H. † | Arganda del Rey | Bishop of Segorbe, Spain |
| 4 Apr | 22.3 | Appointed | Joseph Clemens von Bayern von Wittelsbach † | Bishop of Ličge, Belgium | Archbishop of Köln {Cologne}, Germany |
| 5 Apr | 45.0 | Died | Diego Ibáńez de la Madrid y Bustamente † | Bishop of Ceuta, Spain |
| 10 Apr | 51.3 | Appointed | Armand de Montmorin de Saint-Hérem † | Archbishop of Vienne, France |
| 19 Apr | 59.3 | Appointed | Juan Queipo de Llano y Valdés † | Archbishop of La Plata o Charcas, Bolivia |
| 2 May | | Ordained Bishop | Isidoro Aparici Gilart † | Titular Bishop of Croae | Auxiliary Bishop of Valencia, Spain |
| 4 May | 33.9 | Died | Ludwig Anton Pfalzgraf von Rhein zu Neuburg † | Bishop-Elect of Worms, Germany |
| 5 May | 70.3 | Died | Eustache Le Séneschal de Carcado † | Bishop of Tréguier, France |
| 17 May | 38.4 | Confirmed | Charles Magdelaine Frézeau de Frčzeličre † | Bishop of La Rochelle, France |
| 49.9 | Appointed | Savo (Savio) Millini (Mellini) † | Archbishop (Personal Title) of Nepi e Sutri, Italy | Cardinal, Bishop |
| 29 May | 51.4 | Appointed | Olivier Jégou de Kervilio † | Bishop of Tréguier, France |
| 1 Jun | 22.5 | Confirmed | Joseph Clemens von Bayern von Wittelsbach † | Coadjutor Bishop of Hildesheim, Germany | Archbishop of Köln {Cologne}, Germany |
| 3 Jun | 51.8 | Died | Johann Friedrich Reichsgraf von Waldstein † | Archbishop of Praha {Prague}, Czech Republic |
| 8 Jun | 29.9 | Appointed | Franz Ludwig Pfalzgraf am Rhein zu Neuburg † | Bishop of Worms, Germany | Archbishop-Elect of Mainz, Germany |
| 13 Jun | | Born | Antônio de Nossa Senhora do Desterro Malheiro, O.S.B. † | Vianna de Lima, Portugal | Bishop of Săo Sebastiăo do Rio de Janeiro, Brazil |
| 17 Jun | | Died | Johann Stieff von Kränzen † | Auxiliary Bishop of Gurk, Austria |
| 21 Jun | | Appointed | Valeriano Chierichelli † | Bishop of Ferentino, Italy |
| 30 Jun | 74.5 | Died | Kazimierz Szczuka † | Bishop of Chelmno (Culma), Poland |
| 11 Jul | 53.0 | Died | Juan de Santiago y León Garabito † | Bishop of Guadalajara, Jalisco, México |
| 18 Jul | 41.5 | Died | Matias de Figueiredo e Mello † | Bishop of Olinda, Brazil |
| 19 Jul | 56.5 | Appointed | José de Oliveira, O.S.A. † | Bishop of Angola e Congo, Angola | Bishop Emeritus |
| 7 Aug | 51.6 | Appointed | Juan Manuel Mercadillo, O.P. † | Bishop of Córdoba (Tucumán), Argentina |
| 30 Aug | 51.7 | Confirmed | Olivier Jégou de Kervilio † | Bishop of Tréguier, France |
| 3 Sep | 38.9 | Appointed | Lothar Franz Reichsgraf von Schönborn † | Coadjutor Archbishop of Mainz, Germany | Archbishop |
| 7 Sep | 49.7 | Appointed | Thomas Joseph Nicolson † | Vicar Apostolic of Scotland, Great Britain |
| 49.7 | Appointed | Thomas Joseph Nicolson † | Titular Bishop of Peristasis | Vicar Apostolic of Scotland, Great Britain |
| 13 Sep | 52.7 | Appointed | Johann Peter Burmann † | Auxiliary Bishop of Köln {Cologne}, Germany |
| 52.7 | Appointed | Johann Peter Burmann † | Titular Bishop of Thermopylae | Auxiliary Bishop of Köln {Cologne}, Germany |
| 13.8 | Appointed | Karl Joseph Ignaz Herzog von Lothringen † | Bishop of Olomouc, Czech Republic | Archbishop-Elect of Trier, Germany |
| 41.6 | Appointed | Vidal Marin Fernandez † | Bishop of Ceuta, Spain |
| 17 Sep | 48.7 | Appointed | Johann Brunetti † | Auxiliary Bishop of Wrocław, Poland |
| 48.7 | Appointed | Johann Brunetti † | Titular Bishop of Lacedaemonia | Auxiliary Bishop of Wrocław, Poland |
| 20 Sep | 64.7 | Died | Antonio Medina Cachon y Ponce de Leon † | Archbishop of Cartagena (en Espańa) |
| 23 Sep | 33.2 | Ordained Priest | Andrea Della Rocca, C.R.L. † | Priest of Canons Regular of the Lateran | Bishop of Acci and Mariana, France |
| 29 Sep | 22.8 | Confirmed | Joseph Clemens von Bayern von Wittelsbach † | Bishop of Ličge, Belgium | Archbishop of Köln {Cologne}, Germany |
| 22.8 | Resigned | Joseph Clemens von Bayern von Wittelsbach † | Bishop of Regensburg, Germany | Archbishop of Köln {Cologne}, Germany |
| 22.8 | Resigned | Joseph Clemens von Bayern von Wittelsbach † | Bishop of Freising, Germany | Archbishop of Köln {Cologne}, Germany |
| 3 Oct | 51.8 | Ordained Bishop | Olivier Jégou de Kervilio † | Bishop of Tréguier, France |
| 11 Oct | 39.0 | Confirmed | Lothar Franz Reichsgraf von Schönborn † | Coadjutor Archbishop of Mainz, Germany | Archbishop |
| 30 Oct | | Born | Juan Bautista Ferrer y Castro † | Valencia | Bishop of Lugo, Spain |
| 1 Nov | | Born | Sanctus de Inzillo † | Soriano | Titular Bishop of Mylasa |
| 7 Nov | | Ordained Bishop | Konstantyn Józef Zielinski † | Titular Bishop of Hierapolis in Isauria | Auxiliary Bishop of Gniezno, Poland |
| 8 Nov | 70.9 | Appointed | Bernardo de Carrasco y Saavedra, O.P. † | Bishop of La Paz, Bolivia |
| 51.9 | Confirmed | Juan Manuel Mercadillo, O.P. † | Bishop of Córdoba (Tucumán), Argentina |
| 51.4 | Appointed | Francisco de la Puebla González † | Bishop of Santiago de Chile |
| 11 Nov | 26.0 | Ordained Priest | Felicjan Konstanty Szaniawski † | Priest | Bishop of Kraków, Poland |
| 14 Nov | | Ordained Bishop | Séraphin de Pajot de Plouy † | Bishop of Die, France |
| 17 Nov | | Born | Melchiorre Delfico † | Teramo | Bishop of Muro Lucano, Italy |
| 30 Nov | 51.9 | Installed | Armand de Montmorin de Saint-Hérem † | Archbishop of Vienne, France |
| Dec | | Born | Pedro Agustín Morell de Santa Cruz y Lora † | Santiago de los Caballeros | Bishop of Santiago de Cuba |
| 1 Dec | 43.9 | Died | Jean d'Estrées † | Bishop of Laon, France |
| 18 Dec | 25.1 | Ordained Priest | Johann Bernhard Mayer † | Priest of Würzburg, Germany | Auxiliary Bishop |
| 19 Dec | 41.8 | Ordained Bishop | Vidal Marin Fernandez † | Bishop of Ceuta, Spain |
| 21 Dec | | Born | Ermest Amadeus Thomas Reichsgraf von Attems † | Graz | Bishop of Ljubljana, Slovenia |
| 23 Dec | 53.4 | Appointed | Johann Joseph Reichsgraf von Breuner † | Archbishop of Praha {Prague}, Czech Republic |
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