| Date | Age | Event | Bishop | Title | Current Title |
| unknown | | Died | Giacomo Beni † | Bishop of Fano, Italy |
| 31.8 | Ordained Priest | Jean-de-Dieu-Raymond de Boisgelin de Cucè † | Priest | Cardinal, Archbishop of Tours, France |
| Born | Michelangelo Calmet † | Canino | Bishop of Ripatransone, Italy |
| Appointed | Gregorio Francisco de Campos † | Bishop of La Paz, Bolivia |
| Died | Francesco Castellini † | Bishop of Tivoli, Italy |
| Appointed | Onofrio de Rossi † | Bishop of Ischia, Italy | Bishop of Sant’Agata de’ Goti, Italy |
| Ordained Bishop | Juan Carlos de Vilches y Cabrera † | Bishop of León en Nicaragua |
| Appointed | Tommaso Galli † | Bishop of Tivoli, Italy |
| 25.9 | Ordained Priest | William Gibson † | Priest | Vicar Apostolic of Northern District, England, Great Britain |
| Died | Innocenzo Gorgoni † | President of the Pontifical Ecclesiastical Academy |
| Born | Lev (Leon) Javorskyj (Jaworowski), O.S.B.M. † | | Auxiliary Bishop of Foreign Diocese |
| Appointed | Giovanni Battista Orsi † | Bishop of Fano, Italy |
| Born | Giuseppe Maria Pellicano † | | Bishop of Gerace, Italy |
| 55.2 | Appointed | Ján Terlanday † | Bishop of the unknown of Titular See |
| Appointed | Friedrich von York und Albany † | Bishop of Osnabrück, Germany | Bishop Emeritus |
| 1 Jan | 51.1 | Succeeded | Ján Gustíni-Zubrohlavský † | Bishop of Nitra, Slovakia |
| 35.2 | Appointed | Antoine-Eléonore-Léon Le Clerc de Juigné † | Bishop of Chalons-sur-Marne, France | Archbishop Emeritus of Paris, France |
| 3 Jan | 73.9 | Died | Manoel da Cruz Nogueira, O. Cist. † | Bishop of Mariana, Brazil |
| Born | Carlo Monti † | Imola | Bishop of Cagli e Pergola, Italy |
| 4 Jan | 29.9 | Resigned | Joseph Franz Anton Reichsgraf von Auersperg † | Bishop of Lavant, Slovenia | Cardinal, Bishop of Passau, Germany |
| 8 Jan | | Born | Francisco Albán Barreiro, O.P. † | San Martín de Berducido, Spain | Bishop of Nueva Segovia, Philippines |
| 9 Jan | | Born | Joaquín López Sicilia † | Cubel | Archbishop of Valencia, Spain |
| 18 Jan | | Born | Luca Amici † | Trevi | Bishop of Ferentino, Italy |
| 24 Jan | | Born | Jean-François-Etienne Borderies † | Montauban | Bishop of Versailles, France |
| 29 Jan | | Born | Marino Carafa di Belvedere † | Naples | Cardinal, Priest of the Roman Curia - Other |
| 30 Jan | 55.3 | Died | Manuel Antonio Rojo del Rio Vera † | Archbishop of Manila, Philippines |
| Feb | | Died | José Javier de Arauz y Rojas † | Archbishop of Santafé en Nueva Granada, Colombia |
| 17 Feb | 76.2 | Died | Francisco Díaz Santos y Bullón † | Archbishop of Burgos, Spain |
| 20 Feb | 51.8 | Confirmed | Germain Chasteigner de la Chasteigneraye † | Bishop of Saintes, France |
| Appointed | Giovan Filippo Leonardo Vitetti (Vitetta) † | Bishop of Castellaneta, Italy |
| 23 Feb | 57.1 | Installed | Diego Rodríguez de Rivas y Velasco † | Bishop of Guadalajara, Jalisco, México |
| 24 Feb | 36.6 | Installed | Pedro Ángel de Espiñeira, O.F.M. † | Bishop of Concepción, Chile |
| 29 Feb | | Born | Karl Adalbert Freiherr von Beyer, O. Praem. † | Herzogenbusch | Auxiliary Bishop of Köln {Cologne}, Germany |
| 1 Mar | | Born | Juan José Cordón Leyva † | Cuevas Altas | Bishop of Guadix, Spain |
| 6 Mar | | Born | Vincenzo-Tommaso Piratoni, O.P. † | Alessandria | Bishop of Albenga, Italy |
| 16 Mar | | Born | Petrus Pustet † | Hemau | Bishop of Eichstätt, Germany |
| 18 Mar | | Born | Francesco Maria Pandolfi Alberici † | Orvieto | Cardinal, Cardinal-Priest of S. Prisca |
| 19 Mar | 66.8 | Died | Antônio da Madre de Deus Galvão, O.F.M. † | Bishop of São Paulo, Brazil |
| 24 Mar | | Born | Jean-Joseph-Marie-Victoire de Cosnac † | Châteaux de Cosnac | Archbishop of Sens (-Auxerre), France |
| 25 Mar | 51.9 | Ordained Bishop | Germain Chasteigner de la Chasteigneraye † | Bishop of Saintes, France |
| 27 Mar | 67.5 | Died | Jacinto Aguado y Chacón † | Bishop of Osma, Spain |
| 30 Mar | 71.1 | Died | Hilário de Santa Rosa, O.F.M. † | Bishop Emeritus of Macau, China |
| 3 Apr | 79.3 | Died | Pierre-François Lafitau † | Bishop of Sisteron, France |
| 7 Apr | 23.2 | Ordained Priest | Johann Baptist Lachenbauer, O. Cr. † | Priest | Bishop of Brno, Czech Republic |
| 9 Apr | 31.2 | Appointed | Joseph Adam Graf Arco † | Auxiliary Bishop of Passau, Germany | Bishop of Seckau, Austria |
| 31.2 | Appointed | Joseph Adam Graf Arco † | Titular Bishop of Hippos | Bishop of Seckau, Austria |
| 47.9 | Confirmed | Hermann Hannibal Reichsgraf von Blümegen † | Bishop of Hradec Králové, Czech Republic |
| 37.3 | Confirmed | Michel-François de Couët du Vivier de Lorry † | Bishop of Vence, France | Bishop Emeritus of La Rochelle, France |
| 35.4 | Confirmed | Antoine-Eléonore-Léon Le Clerc de Juigné † | Bishop of Chalons-sur-Marne, France | Archbishop Emeritus of Paris, France |
| 42.5 | Confirmed | Gabriel-François Moreau † | Bishop of Mâcon, France | Bishop of Autun, France |
| 24 Apr | 47.8 | Ordained Priest | Charles Nicolas Alexandre d'Oultremont † | Priest of Liège, Belgium | Bishop |
| 25 Apr | | Born | Pedro Rodriguez Miranda, O. de M. † | Raval | Bishop of Jaca, Spain |
| 29 Apr | 35.5 | Ordained Bishop | Antoine-Eléonore-Léon Le Clerc de Juigné † | Bishop of Chalons-sur-Marne, France | Archbishop Emeritus of Paris, France |
| 24.6 | Ordained Priest | Klemens Wenzeslaus Herzog von Sachsen † | Priest of Regensburg, Germany | Bishop of Augsburg, Germany |
| 1 May | 31.3 | Ordained Bishop | Joseph Adam Graf Arco † | Titular Bishop of Hippos | Bishop of Seckau, Austria |
| 37.3 | Ordained Bishop | Michel-François de Couët du Vivier de Lorry † | Bishop of Vence, France | Bishop Emeritus of La Rochelle, France |
| 4 May | 47.9 | Confirmed | Charles Nicolas Alexandre d'Oultremont † | Bishop of Liège, Belgium |
| 62.5 | Appointed | Francisco Galindo Sanz, O.M. † | Bishop of Orense, Spain |
| 9 May | 66.1 | Died | Charles de Saint-Albin † | Archbishop of Cambrai, France |
| 12 May | 67.9 | Died | Buenaventura Blanco y Elguero (Helguero) † | Bishop of Antequera, Oaxaca, México |
| 13 May | 56.7 | Installed | Anton Peter Graf Przichowsky von Przichowitz † | Archbishop of Praha {Prague}, Czech Republic |
| 15 May | | Appointed | Léopold-Charles de Choiseul † | Archbishop of Cambrai, France |
| 27 May | 48.0 | Ordained Bishop | Hermann Hannibal Reichsgraf von Blümegen † | Bishop of Hradec Králové, Czech Republic |
| 49.0 | Appointed | François-Joachim de Pierre de Bernis † | Cardinal, Archbishop of Albi, France |
| 9 Jun | 42.4 | Appointed | Louis-Jérême de Suffren de Saint-Tropez † | Bishop of Sisteron, France | Bishop of Nevers, France |
| 10 Jun | 48.0 | Ordained Bishop | Charles Nicolas Alexandre d'Oultremont † | Bishop of Liège, Belgium |
| 13 Jun | | Born | Antoni Luboradzki † | Plock | Auxiliary Bishop of Płock, Poland |
| 24 Jun | 62.7 | Ordained Bishop | Francisco Galindo Sanz, O.M. † | Bishop of Orense, Spain |
| 29 Jun | 38.7 | Ordained Priest | Luigi Valenti Gonzaga † | Priest | Cardinal, Librarian of the Vatican Library |
| 9 Jul | 49.4 | Appointed | Urbano Paracciani Rutili † | Cardinal, Archbishop of Fermo, Italy |
| 49.1 | Confirmed | François-Joachim de Pierre de Bernis † | Cardinal, Archbishop of Albi, France |
| 38.7 | Appointed | Luigi Valenti Gonzaga † | Titular Archbishop of Caesarea in Cappadocia | Cardinal, Librarian of the Vatican Library |
| 11 Jul | | Born | Belisario Cristaldi † | Rome | Cardinal, Priest of the Roman Curia - Other |
| 13 Jul | | Born | Stanislao Sanseverino † | Naples | Cardinal, Priest of the Roman Curia - Other |
| 16 Jul | 55.8 | Died | Andrés Porras Termes † | Bishop of Calahorra y La Calzada, Spain |
| 19 Jul | 55.1 | Died | François de Fitz-James † | Bishop of Soissons, France |
| 22 Jul | 61.6 | Died | Lorenzo Despuig Cotoner † | Archbishop of Tarragona, Spain |
| 25 Jul | 49.5 | Ordained Bishop | Urbano Paracciani Rutili † | Cardinal, Archbishop of Fermo, Italy |
| 38.8 | Ordained Bishop | Luigi Valenti Gonzaga † | Titular Archbishop of Caesarea in Cappadocia | Cardinal, Librarian of the Vatican Library |
| 27 Jul | 38.8 | Appointed | Luigi Valenti Gonzaga † | Apostolic Nuncio to Switzerland | Cardinal, Librarian of the Vatican Library |
| 30 Jul | | Born | Francesco-Paolo Grifi † | Matera | Auxiliary Bishop of Acerenza-Matera, Italy |
| 2 Aug | | Born | Paul Louis Joseph D'Hautpoul † | Cahuzac-sur-Vère | Bishop Emeritus of Cahors, France |
| 68.6 | Died | Bernardo de Ustariz, O.P. † | Bishop-Elect of Nueva Segovia, Philippines |
| 5 Aug | 49.2 | Ordained Bishop | François-Joachim de Pierre de Bernis † | Cardinal, Archbishop of Albi, France |
| 8 Aug | | Born | Bartholomeu de Martyribus Maya, O.C.D. † | Sandomil, Brazil | Prelate of Mozambico, Mozambique |
| 10 Aug | 28.6 | Ordained Priest | Alexander MacDonald † | Priest | Vicar Apostolic of Highland District, Scotland, Great Britain |
| 15 Aug | 53.0 | Died | João de São José de Queiroz da Silveira, O.S.B. † | Bishop Emeritus of Belém do Pará, Brazil |
| 20 Aug | 52.8 | Appointed | Bernardo Antonio Calderón Lázaro † | Bishop of Osma, Spain |
| 51.9 | Appointed | Juan Lario Lancis † | Archbishop of Tarragona, Spain |
| 60.4 | Appointed | José Javier Rodríguez Arellano † | Archbishop of Burgos, Spain |
| 21 Aug | | Born | Bernhard Galura † | Herbholzheim | Bishop of Brixen {Bressanone}, Italy |
| 22 Aug | 54.4 | Appointed | Olivier-Simon Le Bon, M.E.P. † | Coadjutor Vicar Apostolic of Siam, Thailand | Vicar Apostolic |
| 54.4 | Appointed | Olivier-Simon Le Bon, M.E.P. † | Titular Bishop of Metellopolis | Vicar Apostolic of Siam, Thailand |
| 24 Aug | | Born | John Dubois, P.S.S. † | Paris, France | Bishop of New York, New York, USA |
| 2 Sep | 50.8 | Ordained Bishop | Manuel de Abad e Illanar, O. Praem. † | Bishop of Córdoba (Tucumán), Argentina | Bishop of Arequipa, Peru |
| 54.7 | Ordained Bishop | Diego Salguero de Cabrera † | Bishop of Arequipa, Peru |
| 31.8 | Ordained Priest | Martin Takáts † | Priest of Society of Jesus | Auxiliary Bishop of Kalocsa, Hungary |
| 3 Sep | 48.1 | Appointed | Wilhelm von Alhaus, O.S.C. † | Auxiliary Bishop of Osnabrück, Germany | Auxiliary Bishop of Münster, Germany |
| 9 Sep | 48.6 | Ordained Bishop | Jean de la Croix de Castries-Mairargues † | Bishop of Vabres, France |
| 14 Sep | 22.9 | Ordained Priest | Jan Kanty Podhorodenski † | Priest | Auxiliary Bishop of Luceoria o Łuck e Zytomir o Zytomierz, Ukraine |
| 22 Sep | 24.0 | Ordained Priest | Cayetano Da Annunciação Brandão, T.O.R. † | Priest of Third Order Regular of St. Francis of Penance | Archbishop of Braga, Portugal |
| 23.5 | Ordained Priest | Johann Valentin Heimes † | Priest of Mainz, Germany | Auxiliary Bishop of Worms, Germany |
| 23.9 | Ordained Priest | Ferenc Szanyi † | Priest | Bishop of Foreign Diocese |
| 26 Sep | 15.0 | Professed | Cyprian Odyniec † | Member of Society of Jesus | Auxiliary Bishop of Mohilev, Belarus |
| 27 Sep | | Born | Wenceslas Urban von Stuffler † | Brno | Bishop of Brno, Czech Republic |
| 29 Sep | | Born | Miguel Fernández Flórez, O.F.M. † | Bujalance, Spain | Auxiliary Bishop of Sevilla {Seville}, Spain |
| 30 Sep | 42.7 | Ordained Bishop | Louis-Jérême de Suffren de Saint-Tropez † | Bishop of Sisteron, France | Bishop of Nevers, France |
| 2 Oct | | Born | Juan Antonio Lillo, O.F.M. † | Lillo, Spain | Bishop of Nueva Caceres, Philippines |
| 5 Oct | | Born | Placide-Bruno Valayer † | Grillon | Bishop Emeritus of Verdun, France |
| 7 Oct | | Born | Francesco Biordi † | Talamello, Italy | Titular Bishop of the unknown of Titular See |
| Born | Eduardo María Sáenz La Guardia † | Moreda | Bishop of Huesca, Spain |
| 19 Oct | 84.7 | Died | Louis Néez, M.E.P. † | Vicar Apostolic of Western Tonking {Tonkino Occidentale}, Viêt Nam |
| 42.8 | Succeeded | Bertrand Reydellet, M.E.P. † | Vicar Apostolic of Western Tonking {Tonkino Occidentale}, Viêt Nam |
| 20 Oct | | Born | Francesco Canali † | Perugia | Cardinal, Bishop Emeritus of Tivoli, Italy |
| 21 Oct | | Born | Rafael Lasso de la Vega † | Panama | Bishop of Quito, Ecuador |
| 23 Oct | | Born | Joaquim da Souza Saraiva, C.M. † | Camalhotes, Portugal | Vicar Apostolic of Northern Chi-Li {Ce-Li Settentrionale} o Pe-Kin, China |
| 28 Oct | 53.0 | Ordained Bishop | Bernardo Antonio Calderón Lázaro † | Bishop of Osma, Spain |
| 60.6 | Ordained Bishop | José Javier Rodríguez Arellano † | Archbishop of Burgos, Spain |
| 30 Oct | | Born | Szymon Michal Józef Arnold Giedroyc † | Vilkaviskis | Bishop of Samogizia o Tels (Zmudz), Lithuania |
| 2 Nov | | Born | Benedetto Cappelletti † | Rieti | Cardinal, Bishop of Rieti, Italy |
| 4 Nov | 58.6 | Died | Andrés Bustamante † | Bishop of Palencia, Spain |
| 5 Nov | 25.1 | Appointed | Klemens Wenzeslaus Herzog von Sachsen † | Coadjutor Bishop of Augsburg, Germany | Bishop |
| 23 Nov | | Born | Karl Klemens Reichsfreiherr von Gruben † | Bonn | Bishop of Hildesheim, Germany |
| 24 Nov | | Born | Domenico Novi Ciavarria † | Napoli | Bishop of Avellino, Italy |
| 26 Nov | 61.2 | Appointed | Luis García Mañero † | Archbishop of Zaragoza, Spain |
| 30 Nov | 39.2 | Ordained Deacon | Guido Calcagnini † | Deacon | Cardinal, Bishop of Osimo e Cingoli, Italy |
| 24.0 | Ordained Priest | Alberto Maria Giuseppe Andrea Luigi Solinas † | Priest | Bishop of Galtelli-Nuoro, Italy |
| 1 Dec | | Born | Joseph Knauer † | Rothflössel | Bishop of Wrocław, Poland |
| 9 Dec | 42.0 | Ordained Bishop | Guillaume Piguel, M.E.P. † | Titular Bishop of Canatha | Vicar Apostolic of Cochin {Cocincina}, Viêt Nam |
| 17 Dec | 71.6 | Appointed | Giuseppe Maria Feroni † | Cardinal, Cardinal-Priest of S. Cecilia |
| 58.9 | Appointed | Juan Luengo Pinto † | Bishop of Calahorra y La Calzada, Spain |
| 51.7 | Appointed | Isidro Rodríguez Lorenzo, O.S.Bas. † | Bishop of Comayagua, Honduras | Archbishop Emeritus of Santo Domingo, Dominican Republic |
| 21 Dec | 39.2 | Ordained Priest | Guido Calcagnini † | Priest | Cardinal, Bishop of Osimo e Cingoli, Italy |
| 22 Dec | | Born | Pedro Inguanzo Rivero † | Llanes | Cardinal, Archbishop of Toledo, Spain |
| 24.1 | Ordained Priest | Josef-Franz (Joseph François Xavier) de Preux † | Priest of Sion {Sitten}, Switzerland | Bishop |
| 25 Dec | | Born | Ferdinand August Graf Spiegel † | Canstein | Archbishop of Köln {Cologne}, Germany |
| 26 Dec | 32.8 | Appointed | Jean-de-Dieu-Raymond de Boisgelin de Cucè † | Bishop of Lavaur, France | Cardinal, Archbishop of Tours, France |