| Date | Age | Event | Bishop | Title | Current Title |
|---|
| unknown | | Resigned | Luc d'Aquin † | Bishop of Fréjus, France | Bishop Emeritus |
| Appointed | Ferdinand de Berlo de Brus † | Bishop of Namur {Namen}, Belgium |
| Died | Giuseppe Bologna † | Archbishop of Capua, Italy |
| Appointed | Giuseppe Bondola † | Bishop of Campagna, Italy |
| 54.3 | Resigned | François Bouthillier de Chavigny † | Bishop of Troyes, France | Bishop Emeritus |
| 77.1 | Appointed | Jobst Edmund Freiherr von Brabeck † | Vicar Apostolic of Nordic Missions, Germany | Bishop of Hildesheim, Germany |
| 21.6 | Ordained Priest | Otto Honorius Reichsgraf von Egkh und Hungersbach † | Priest of Olomouc, Czech Republic | Auxiliary Bishop |
| 17.6 | Professed | Winimar Knippschild, O.S.B. † | Member of Order of Saint Benedict | Auxiliary Bishop of Paderborn, Germany |
| Appointed | Carlo Loffredo † | Archbishop of Capua, Italy |
| Born | Cayetano Marcellano y Agramont † | Cuzco | Archbishop of La Plata o Charcas, Bolivia |
| 53.0 | Appointed | Carlo Giuseppe Morozzo † | Bishop of Bobbio, Italy | Bishop of Saluzzo, Italy |
| 39.0 | Appointed | Giuseppe Roero † | Bishop of Alba (Pompea), Italy |
| 40.0 | Appointed | Michel-Gabriel Rossillon de Bernex † | Bishop of Genève {Geneva}, Switzerland |
| Born | Pedro Anselmo Sánchez de Tagle † | Santillana, Spain | Bishop of Michoacán, Michoacán, México |
| Appointed | José de Santa Maria Saldanha, O.F.M. † | Bishop of Porto, Portugal |
| Appointed | Mikołaj Stanisław Święcicki † | Bishop of Foreign Diocese | Bishop of Poznań, Poland |
| 63.8 | Died | Alonso Vargas y Barca, O.S.A. † | Bishop of Comayagua, Honduras |
| 2 Jan | | Born | Etienne-René Potier de Gesvres † | Paris | Cardinal, Bishop Emeritus of Beauvais, France |
| 12 Jan | 29.2 | Appointed | Louis d'Aquin † | Bishop of Fréjus, France | Bishop of Sées, France |
| 67.0 | Appointed | Otto de la Bourde † | Bishop of Gurk, Austria |
| 13 Jan | 36.0 | Appointed | Sigmund Carl Reichsgraf von Castel-Barco † | Bishop of Chiemsee, Germany |
| 15 Jan | 49.0 | Appointed | Charles-Marin Labbé, M.E.P. † | Coadjutor Vicar Apostolic of Cochin {Cocincina}, Viêt Nam |
| 17 Feb | | Born | Charles-Antoine de la Roche-Aymon † | Mainsat | Cardinal, Archbishop of Reims, France |
| 21 Feb | | Born | Bonifatius (Giovanni Giuseppe) Cecotti, O.F.M. † | Gorizia | Bishop of Pedena, Austria |
| 6 Mar | 71.9 | Died | Johann Euchar Reichsgraf von Schenk von Castell † | Bishop of Eichstätt, Germany |
| 9 Mar | 66.0 | Died | Wilhelm Freiherr von Vintler von Runkelstein † | Auxiliary Bishop of Brixen {Bressanone}, Italy |
| 23 Mar | 26.4 | Ordained Priest | Ladislav Szörényi † | Priest | Bishop of Sirmio, Croatia |
| 24 Mar | | Born | Louis-César-Constantin de Rohan-Guémené-Montbazon † | Paris | Cardinal, Bishop of Strasbourg, France |
| 26 Mar | | Born | José Gómez † | Rillo | Bishop of Zamora, Spain |
| Born | Ferdinand Joseph Gabriel Graf von Sarnthein † | Innsbruck | Auxiliary Bishop of Brixen {Bressanone}, Italy |
| 27 Mar | 39.2 | Ordained Bishop | Giuseppe Roero † | Bishop of Alba (Pompea), Italy |
| 7 Apr | 31.8 | Appointed | Denis-François Bouthillier de Chavigny † | Bishop of Troyes, France | Archbishop of Sens, France |
| 14 Apr | | Ordained Bishop | Mikołaj Stanisław Święcicki † | Bishop of Foreign Diocese | Bishop of Poznań, Poland |
| 16 Apr | 66.6 | Appointed | Johann Martin Reichsritter von Eyb † | Bishop of Eichstätt, Germany |
| 20 Apr | | Born | Jean-Antoine de Tinseau † | Besançon | Bishop of Nevers, France |
| 27 Apr | 67.3 | Ordained Bishop | Otto de la Bourde † | Bishop of Gurk, Austria |
| 3 May | 51.6 | Ordained Priest | Diego Montero del Aguila † | Priest | Bishop of Trujillo, Peru |
| 5 May | 36.3 | Ordained Bishop | Sigmund Carl Reichsgraf von Castel-Barco † | Bishop of Chiemsee, Germany |
| 13 May | 53.4 | Appointed | Miguel Bayot, O.F.M. † | Bishop of Cebu, Philippines |
| 20 May | | Born | Francesco Scipione Maria Borghese † | Rome | Cardinal, Bishop of Porto e Santa Rufina, Italy |
| 21 May | 72.4 | Died | Jan Stanisław Zbaski † | Bishop of Warmia, Poland |
| 26 May | | Born | Antônio da Madre de Deus Galvão, O.F.M. † | Lisboa, Portugal | Bishop of São Paulo, Brazil |
| 10 Jun | 29.6 | Ordained Bishop | Louis d'Aquin † | Bishop of Fréjus, France | Bishop of Sées, France |
| 18 Jun | 71.8 | Died | St. Gregorio Giovanni Gasparo Barbarigo † | Cardinal, Bishop of Padova {Padua}, Italy |
| 13 Jul | | Born | Francisco Pablo Matos Coronado † | Gran Canaria, Spain | Bishop of Michoacán, Michoacán, México |
| 22 Jul | 66.8 | Elevated to Cardinal | Luiz de Sousa † | Cardinal, Archbishop of Lisboa, Portugal |
| 46.3 | Elevated to Cardinal | Fabrizio Paolucci † | In Pectore | Cardinal, Prefect of the Roman Curia - Other |
| 24 Aug | 73.6 | Died | Bernardo de Carrasco y Saavedra, O.P. † | Bishop of La Paz, Bolivia |
| 29 Aug | | Born | Adalbert Walderdorf, O.S.B. † | Molsberg | Bishop of Fulda, Germany |
| 30 Aug | | Born | Joseph-Hubert de Boccard † | Vuippens | Bishop of Lausanne, Switzerland |
| 3 Oct | | Born | Franz Ignaz Albert Reichsfreiherr von Werdenstein † | Dellmansingen | Auxiliary Bishop of Freising, Germany |
| 6 Oct | | Born | Francisco Cuartero Lumbreras † | Tabuenca | Bishop of Segorbe, Spain |
| 40.8 | Ordained Bishop | Michel-Gabriel Rossillon de Bernex † | Bishop of Genève {Geneva}, Switzerland |
| 15 Oct | 81.5 | Ordained Bishop | Wojciech Izdebski † | Auxiliary Bishop of Vilnius, Lithuania |
| 29 Oct | | Born | Johannes Christoph Ludwig Reichsgraf von Kuenburg † | Graz | Auxiliary Bishop of Passau, Germany |
| 1 Nov | | Born | Claude-Antoine de Choiseul-Beaupré † | Daillecourt | Bishop of Chalons-sur-Marne, France |
| 4 Nov | | Born | Carlos Antonio Riomol Quiroga † | Parroquia de Folgosa | Bishop of Mondoñedo, Spain |
| 11 Nov | 59.9 | Died | Jean-Baptiste Adhémar de Monteil de Grignan † | Archbishop of Arles, France |
| 64.7 | Appointed | Marcello Durazzo † | Archbishop (Personal Title) of Faenza, Italy | Cardinal, Bishop |
| 14 Nov | | Appointed | Bonaventura Poerio, O.F.M. † | Archbishop of Salerno, Italy |
| 25 Nov | 56.9 | Died | Nicolò Caranza † | Bishop of Borgo San Donnino, Italy |
| 2 Dec | 32.2 | Appointed | Francesco Acquaviva d’Aragona † | Titular Archbishop of Larissa in Thessalia | Cardinal, Cardinal-Bishop of Sabina |
| 34.7 | Appointed | Giulio Piazza † | Titular Archbishop of Rhodus | Cardinal, Archbishop (Personal Title) of Faenza, Italy |
| 21 Dec | 23.4 | Ordained Priest | Domenico Antonio Manfredi † | Priest | Bishop of Boiano, Italy |
| 22 Dec | 32.2 | Ordained Bishop | Francesco Acquaviva d’Aragona † | Titular Archbishop of Larissa in Thessalia | Cardinal, Cardinal-Bishop of Sabina |
| 34.8 | Ordained Bishop | Giulio Piazza † | Titular Archbishop of Rhodus | Cardinal, Archbishop (Personal Title) of Faenza, Italy |
| 24 Dec | 39.8 | Appointed | François de Mailly † | Archbishop of Arles, France | Cardinal, Archbishop of Reims, France |
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