| Date | Age | Event | Bishop | Title | Current Title |
| unknown | | Appointed | Donato Anzani † | Bishop of Marsico Nuovo, Italy |
| 38.3 | Ordained Priest | Giberto Borromeo † | Priest | Cardinal, Bishop of Novara, Italy |
| Appointed | Alfonso De' Belincioni † | Bishop of Cagli, Italy |
| 18.0 | Ordained Priest | Juan González Melgarejo † | Priest of Paraguay | Bishop of Arequipa, Peru |
| 18.4 | Professed | Meinwerk Kaup, O.S.B. † | Member of Order of Saint Benedict | Auxiliary Bishop of Paderborn, Germany |
| 34.0 | Appointed | Charles-Alexandre Le Filleul de La Chapelle † | Bishop of Vabres, France |
| Resigned | Diego Ladrón de Guevara † | Bishop of Quito, Ecuador |
| 21.8 | Ordained Priest | José Mezquía Díaz de Arrízola, O. de M. † | Priest of Order of Our Lady of Mercy | Bishop of Solsona, Spain |
| 57.0 | Died | Miguel Pérez Lara † | Bishop of Coria, Spain |
| 41.5 | Appointed | Nuno Álvares Pereira de Melo † | Bishop of Lamego, Portugal |
| 54.0 | Appointed | Léon Potier de Gesvres † | Archbishop of Bourges, France | Cardinal, Archbishop Emeritus |
| Born | Louis-Henri de Rochefort d'Ally † | | Bishop of Chalons-sur-Saône, France |
| Born | Diego Salguero de Cabrera † | Córdoba | Bishop of Arequipa, Peru |
| 72.9 | Appointed | Varlaam Sheptyskyi † | Bishop of Lviv (Ukrainian), Ukraine |
| Appointed | Michal Bartlomiej Tarlo † | Bishop of Poznań, Poland |
| Died | Pedro Vázquez de Velasco † | Bishop of Santa Cruz de la Sierra, Bolivia |
| Died | Jan Zgierski † | Bishop of Smoleńsk, Poland |
| 2 Jan | | Born | Simon Ambros Stock † | Wien | Titular Bishop of the unknown of Titular See |
| 5 Jan | 64.3 | Ordained Bishop | Diego Montero del Aguila † | Bishop of Concepción, Chile | Bishop of Trujillo, Peru |
| 18 Jan | 41.0 | Died | Manuel González Virtus † | Bishop of Córdoba (Tucumán), Argentina |
| 31 Jan | | Born | Giovanni Maria Castelvetri † | Modena | Bishop of Reggio Emilia, Italy |
| 14 Feb | 62.1 | Died | Juan Iñiguez Arnedo † | Bishop of Pamplona, Spain |
| 16 Feb | 77.7 | Died | Esprit-Valentin Fléchier † | Bishop of Nimes, France |
| 19 Feb | 54.6 | Appointed | Fulvio Astalli † | Cardinal-Priest of Ss. Quirico e Giulitta | Cardinal, Bishop of Ostia (-Velletri), Italy |
| 52.9 | Appointed | Giovanni Battista (Giambattista) Bussi † | Archbishop (Personal Title) of Ancona e Numana, Italy | Cardinal, Bishop |
| 48.8 | Appointed | Francisco Dorda, O. Cist. † | Bishop of Solsona, Spain |
| 59.4 | Appointed | Ulisse Giuseppe Gozzadini † | Archbishop (Personal Title) of Imola, Italy | Cardinal, Bishop |
| 80.6 | Appointed | Bandino Panciatici † | Cardinal-Priest of S. Prassede | Cardinal, Prefect of the Congregation of the Council |
| 61.4 | Appointed | Manuel Senjust Pagés † | Bishop of Vic, Spain |
| 21 Feb | | Died | Edward Comerford † | Archbishop of Cashel, Ireland |
| 22 Feb | 67.6 | Died | Charles-Maurice Le Tellier † | Archbishop of Reims, France |
| 4 Mar | 67.0 | Died | Callisto Lodigeri, O.S.M. † | Bishop of Montepulciano, Italy |
| 6 Mar | | Born | Joseph-François de Cadenet de Charleval † | Aix | Bishop of Agde, France |
| 9 Mar | 55.2 | Ordained Bishop | Henri du Puget † | Bishop of Digne, France |
| 17 Mar | | Died | Daniel-Louis de Baradat † | Bishop of Vabres, France |
| Born | Olivier-Simon Le Bon, M.E.P. † | Saint-Malo, France | Vicar Apostolic of Siam, Thailand |
| 20 Mar | 68.7 | Died | Johann Joseph Reichsgraf von Breuner † | Archbishop of Praha {Prague}, Czech Republic |
| 22 Mar | 70.6 | Died | Sperello Sperelli † | Cardinal, Bishop Emeritus of Terni, Italy |
| 30 Mar | 48.9 | Ordained Bishop | Francisco Dorda, O. Cist. † | Bishop of Solsona, Spain |
| 11 Apr | 62.3 | Appointed | Juan Bonilla Vargas, O.SS.T. † | Bishop of Córdoba, Spain |
| 12 Apr | 33.4 | Appointed | Franz Karl Reichsgraf von Kaunitz-Rietberg † | Bishop of Ljubljana, Slovenia |
| 13 Apr | 59.5 | Died | Johann Peter von Quentell † | Auxiliary Bishop of Münster, Germany |
| 17 Apr | 16.2 | Professed | Valentín Moran Menéndez, O. de M. † | Member of Order of Our Lady of Mercy | Bishop Emeritus of Islas Canarias {Canary Islands}, Spain |
| 24 Apr | | Born | Louis-Philippe-François Mariauchau d'Esglis † | Québec | Bishop of Québec, Québec, Canada |
| 27 Apr | 77.1 | Died | Marcello Durazzo † | Cardinal, Bishop of Faenza, Italy |
| May | | Resigned | Charles Andrault de Maulevrier de Langeron † | Bishop of Autun, France | Bishop Emeritus |
| 7 May | 54.8 | Appointed | Fulvio Astalli † | Cardinal-Priest of S. Pietro in Vincoli | Cardinal, Bishop of Ostia (-Velletri), Italy |
| 10 May | 58.4 | Appointed | Kazimierz Łubieński † | Bishop of Kraków, Poland |
| 14 May | | Born | Carlo Gagliardi † | Bellae | Bishop of Muro Lucano, Italy |
| 17 May | 42.5 | Died | Louis d'Aquin † | Bishop of Sées, France |
| 18 May | 28.3 | Ordained Bishop | Charles-François Des Montiers de Mérinville † | Bishop of Chartres, France |
| 19 May | 36.2 | Appointed | Friedrich Karl Reichsgraf von Schönborn † | Titular Bishop of Arcadiopolis in Asia | Bishop of Würzburg, Germany |
| 36.2 | Confirmed | Friedrich Karl Reichsgraf von Schönborn † | Coadjutor Bishop of Bamberg, Germany | Bishop of Würzburg, Germany |
| 30 May | | Born | Antonio Fernández Tobar † | Palencia | Bishop of Tui, Spain |
| 61.7 | Ordained Bishop | Manuel Senjust Pagés † | Bishop of Vic, Spain |
| 14 Jun | 24.1 | Ordained Priest | Felipe Itúrbide, O. Carm. † | Priest of Order of Our Lady of Mt. Carmel | Bishop Emeritus of Dubrovnik (Ragusa), Croatia |
| 15 Jun | 73.4 | Ordained Bishop | Varlaam Sheptyskyi † | Bishop of Lviv (Ukrainian), Ukraine |
| 26 Jun | | Born | Juan Manuel Merino Lumbreras † | Lumbreras | Bishop of Astorga, Spain |
| 30 Jun | 50.5 | Died | François Gaspard de La Mer de Matha † | Bishop of Aire, France |
| Jul | 48.6 | Died | Giovanni Matteo Vitelloni † | Bishop of Catanzaro, Italy |
| 11 Jul | 70.5 | Died | Jean-Baptiste-Michel Colbert de Saint-Pouange † | Archbishop of Toulouse, France |
| 43.2 | Appointed | Jules-César Rousseau de La Parisière † | Bishop of Nimes, France |
| 12 Jul | 48.5 | Appointed | Jean Le Normant † | Bishop of Evreux, France |
| 52.4 | Appointed | François de Mailly † | Cardinal, Archbishop of Reims, France |
| 42.7 | Appointed | Dominique-Barnabé Turgot de Saint-Clair † | Bishop of Sées, France |
| 13 Jul | | Ordained Bishop | Jacques Maboul † | Bishop of Alet, France |
| 19 Jul | 35.5 | Appointed | Charles-François d'Hallencourt de Dromesnil † | Bishop of Autun, France | Bishop of Verdun, France |
| 21 Jul | 50.5 | Appointed | Francesco Maria Abbati † | Bishop of Carpentras, France |
| 47.4 | Appointed | Giulio Piazza † | Cardinal, Archbishop (Personal Title) of Faenza, Italy |
| Appointed | Stefan Wierzbowski † | Auxiliary Bishop of Warmia, Poland |
| Appointed | Stefan Wierzbowski † | Titular Bishop of Dardanus | Auxiliary Bishop of Warmia, Poland |
| 30 Jul | 62.8 | Died | Lucas Bustos de la Torre † | Bishop of Lugo, Spain |
| 3 Sep | 75.7 | Died | Antonio Ibáñez de la Riva Herrera † | Archbishop of Zaragoza, Spain |
| 11 Sep | 61.2 | Died | Tobias Johannes Becker † | Bishop of Hradec Králové, Czech Republic |
| 24 Sep | 29.8 | Appointed | Karl Joseph Ignaz Herzog von Lothringen † | Archbishop of Trier, Germany | Archbishop-Elect |
| 29 Sep | 63.7 | Died | João de Sousa † | Archbishop of Lisboa, Portugal |
| 5 Oct | 42.0 | Ordained Priest | Pompeio Aldrovandi † | Priest | Cardinal, Bishop of Montefiascone, Italy |
| 15 Oct | | Born | Jean-Sébastien de Barral † | Grenoble | Bishop of Castres, France |
| 5 Nov | 46.3 | Appointed | Franz Ludwig Pfalzgraf am Rhein zu Neuburg † | Coadjutor Archbishop of Mainz, Germany | Archbishop-Elect |
| 10 Nov | | Appointed | Teodor Wolff von Ludinghausen † | Bishop of Chelm, Poland |
| 43.0 | Confirmed | Dominique-Barnabé Turgot de Saint-Clair † | Bishop of Sées, France |
| 11 Nov | | Born | Anton Maria Martin Ritter von Stegner † | Wien | Auxiliary Bishop of Wien, Austria |
| 12 Nov | 33.5 | Appointed | Johann Adam Reichsgraf von Wratislaw von Mitrowitz † | Bishop of Hradec Králové, Czech Republic | Bishop of Litomĕrice, Czech Republic |
| 16 Nov | 45.9 | Ordained Bishop | Juan Benito Garret y Arlovi, O. Praem. † | Bishop of León en Nicaragua |
| 1 Dec | 52.7 | Confirmed | François de Mailly † | Cardinal, Archbishop of Reims, France |
| 43.6 | Confirmed | Jules-César Rousseau de La Parisière † | Bishop of Nimes, France |
| 7 Dec | 41.7 | Ordained Priest | Johann Baptist Reichfreiherr von Reinach-Hirzbach † | Priest of Basel, Switzerland | Coadjutor Bishop |
| 14 Dec | 43.1 | Ordained Bishop | Dominique-Barnabé Turgot de Saint-Clair † | Bishop of Sées, France |
| 17 Dec | | Died | François Verjus † | Bishop of Grasse, France |
| 20 Dec | 96.0 | Died | Cosme Roger † | Bishop of Lombez, France |
| 21 Dec | 49.0 | Ordained Bishop | Jean Le Normant † | Bishop of Evreux, France |