| Date | Age | Event | Bishop | Title | Current Title |
|---|
| unknown | 28.9 | Ordained Priest | Girolamo Bajardi † | Priest | Bishop of Borgo San Donnino, Italy |
| 37.7 | Appointed | José de Bragança † | Archbishop of Braga, Portugal |
| Died | Juan Cavero de Toledo † | Bishop of Arequipa, Peru |
| Died | Daniel-Joseph de Cosnac † | Bishop of Die, France |
| Appointed | José Maria da Fonseca de Évora, O.F.M. † | Bishop of Porto, Portugal |
| Appointed | Diego de Salinas y Cabrera, O.S.A. † | Bishop of Panamá | Bishop Emeritus |
| Resigned | Diego de Salinas y Cabrera, O.S.A. † | Bishop of Panamá | Bishop Emeritus |
| 56.0 | Appointed | Francisco José de Figueredo y Victoria † | Bishop of Popayán, Colombia | Archbishop of Guatemala |
| Died | Jacques de Forbin-Janson † | Archbishop of Arles, France |
| Appointed | Francesco Gaetano Incontri † | Archbishop of Firenze {Florence}, Italy |
| 17.1 | Professed | Berndard-Emmanuel (François-Pierre) de Lenzbourg, O. Cist. † | Member of Order of Cistercians | Bishop of Lausanne, Switzerland |
| Appointed | Georges-Gaspard-Alexis de Plan des Augiers † | Bishop of Die, France |
| Appointed | Waclaw Hieronim Sierakowski † | Bishop of Przemyśl, Poland |
| 57.1 | Appointed | Miguel de Távora, O.S.A. † | Archbishop of Évora, Portugal |
| 54.9 | Ordained Bishop | Andrés Vergara Uribe † | Bishop of Santa Cruz de la Sierra, Bolivia |
| 1 Jan | | Born | Giulio Cesare Pallavicini † | Bastia | Bishop of Luni e Sarzana, Italy |
| 2 Jan | 62.2 | Appointed | José Botelho de Matos † | Archbishop of São Salvador da Bahia, Brazil | Archbishop Emeritus |
| 67.1 | Appointed | José de Fialho, O. Cist. † | Archbishop (Personal Title) of Guarda, Portugal | Bishop |
| 41.9 | Confirmed | Joseph Ignaz Philipp Landgraf von Hessen-Darmstadt † | Bishop of Augsburg, Germany |
| 43.5 | Appointed | Francisco Pablo Matos Coronado † | Bishop of Michoacán, Michoacán, México |
| 5 Jan | | Born | Vincenzo Nicola Pasquale Dentice, O.S.B. † | Aquedia | Archbishop of Cosenza, Italy |
| 8 Jan | 37.5 | Ordained Bishop | Leopold Josef Hannibal Graf Petazzi de Castel Nuovo † | Bishop of Trieste, Italy | Bishop of Ljubljana, Slovenia |
| 25 Jan | | Born | Filippo Ganucci † | Firenze | Bishop of Livorno, Italy |
| 29 Jan | 49.3 | Ordained Bishop | Richard Challoner † | Titular Bishop of Doberus | Vicar Apostolic of London District, England, Great Britain |
| 30 Jan | 50.2 | Appointed | José Alfonso Meléndez, O.F.M. † | Bishop of Potenza, Italy | Archbishop of Palermo, Italy |
| 31 Jan | | Born | Johann Baptist Lachenbauer, O. Cr. † | Broumov | Bishop of Brno, Czech Republic |
| 2 Feb | | Born | Vicente José Soto Valcárce † | Ruitelán | Bishop of Valladolid, Spain |
| 4 Feb | 50.2 | Ordained Bishop | José Alfonso Meléndez, O.F.M. † | Bishop of Potenza, Italy | Archbishop of Palermo, Italy |
| 5 Feb | 46.1 | Ordained Bishop | João da Cruz Salgado de Castilho, O.C.D. † | Bishop of São Sebastião do Rio de Janeiro, Brazil | Bishop of Miranda, Portugal |
| 62.3 | Ordained Bishop | José Botelho de Matos † | Archbishop of São Salvador da Bahia, Brazil | Archbishop Emeritus |
| 6 Feb | 56.2 | Died | Domingo Antonio de Zatarain † | Bishop of León en Nicaragua |
| 12 Feb | 42.1 | Ordained Bishop | Joseph Ignaz Philipp Landgraf von Hessen-Darmstadt † | Bishop of Augsburg, Germany |
| 19 Feb | | Ordained Bishop | Manuel Lopes Simões † | Bishop of Portalegre, Portugal |
| 23 Feb | 52.0 | Died | José Félix Valverde † | Bishop of Michoacán, Michoacán, México |
| 25 Feb | 70.1 | Appointed | Manuel Coutinho † | Bishop of Lamego, Portugal |
| 23.1 | Ordained Priest | Manoel da Ressurreição, O.F.M. † | Priest of Order of Friars Minor | Bishop of São Paulo, Brazil |
| 4 Mar | 34.6 | Appointed | Ferdinand Michael Cyriakus Graf von Hallweil † | Bishop of Wiener Neustadt, Austria |
| 5 Mar | | Appointed | Pierre de Beaupoil de Saint-Aulaire † | Bishop of Tarbes, France |
| 53.6 | Ordained Bishop | Guillaume d'Hugues † | Bishop of Nevers, France | Archbishop of Vienne, France |
| 48.0 | Ordained Bishop | Hilário de Santa Rosa, O.F.M. † | Bishop of Macau, China | Bishop Emeritus |
| 6 Mar | 46.2 | Appointed | Mateo de Zamora y Penagos, O.F.M. † | Bishop of Yucatán (Mérida), Yucatán, México |
| 33.2 | Confirmed | Henri-Marie du Breuil de Pontbriand † | Bishop of Québec, Québec, Canada |
| 50.9 | Appointed | Diego Martínez Garrido, O.S. † | Bishop of Cartagena, Colombia | Bishop Emeritus |
| 48.4 | Appointed | Domingo Pérez Rivera † | Auxiliary Bishop of Sevilla {Seville}, Spain |
| 48.4 | Appointed | Domingo Pérez Rivera † | Titular Bishop of Gadara | Auxiliary Bishop of Sevilla {Seville}, Spain |
| 11 Mar | | Born | Johann Valentin Heimes † | Hattenheim | Auxiliary Bishop of Worms, Germany |
| 18 Mar | 67.3 | Died | José de Fialho, O. Cist. † | Bishop of Guarda, Portugal |
| 19 Mar | 70.3 | Ordained Bishop | Edward Dicconson † | Titular Bishop of Mallus | Vicar Apostolic of Northern District, England, Great Britain |
| 29 Mar | 69.2 | Died | García Pardiñas Villar de Francos, O. de M. † | Bishop of Tarazona, Spain |
| 1 Apr | 22.5 | Ordained Priest | Joseph Philipp Franz Reichsgraf von Spaur † | Priest of Brixen {Bressanone}, Italy | Bishop |
| 3 Apr | 24.3 | Ordained Priest | William Walton † | Priest | Vicar Apostolic of Northern District, England, Great Britain |
| 9 Apr | 33.3 | Ordained Bishop | Henri-Marie du Breuil de Pontbriand † | Bishop of Québec, Québec, Canada |
| 14 Apr | 42.6 | Appointed | Adam Stanisław Grabowski † | Bishop of Warmia, Poland |
| 20 Apr | | Born | José Antonio García Mohedano † | Talarrubias, Spain | Bishop of Santo Tomás de Guayana, Venezuela |
| 22 Apr | | Died | Eugénio Trigueiros, O.S.A. † | Archbishop of Goa, India |
| 29 Apr | | Born | Lorenzo Caleppi † | Cervia | Cardinal, Apostolic Nuncio to Portugal |
| 62.3 | Resigned | Manuel Samaniego Jaca † | Archbishop of Burgos, Spain | Archbishop Emeritus |
| 6 May | 48.6 | Ordained Bishop | Domingo Pérez Rivera † | Titular Bishop of Gadara | Auxiliary Bishop of Sevilla {Seville}, Spain |
| 10 May | 59.6 | Died | Antonio Maria Santoro, O.M. † | Bishop of Ravello, Italy |
| 13 May | 54.4 | Appointed | Lawrence William York, O.S.B. † | Coadjutor Vicar Apostolic of Western District, England, Great Britain | Vicar Apostolic Emeritus |
| 54.4 | Appointed | Lawrence William York, O.S.B. † | Titular Bishop of Nebbi | Vicar Apostolic Emeritus of Western District, England, Great Britain |
| 16 May | 60.6 | Died | Giacomo Lanfredini † | Cardinal, Bishop Emeritus of Osimo e Cingoli, Italy |
| 17 May | 64.6 | Died | Francesco Antonio Correr, O.F.M. Cap. † | Patriarch of Venezia {Venice}, Italy |
| 21 May | | Born | Stanisław Żarnowiecki † | | Auxiliary Bishop of Poznań, Poland |
| 23 May | | Resigned | Giuseppe Maria Martelli † | Archbishop of Firenze {Florence}, Italy | Archbishop Emeritus |
| 29 May | 34.8 | Confirmed | Ferdinand Michael Cyriakus Graf von Hallweil † | Bishop of Wiener Neustadt, Austria |
| 40.6 | Appointed | Gaspar Molina Rocha, O.S.A. † | Bishop of Almería, Spain |
| 58.1 | Appointed | Diego Felipe Perea Magdaleno † | Archbishop of Burgos, Spain |
| 9 Jun | 53.9 | Installed | Guillaume d'Hugues † | Bishop of Nevers, France | Archbishop of Vienne, France |
| 11 Jun | 23.0 | Ordained Priest | Hyacinthe-Sigismond Gerdil, B. † | Priest of Clerics Regular of St. Paul | Cardinal, Cardinal-Priest of S. Cecilia |
| 23.1 | Ordained Priest | Raymund Anton Graf von Strasoldo † | Priest of Lavant, Slovenia | Bishop of Eichstätt, Germany |
| 19 Jun | 71.5 | Died | Gottfried Reichsritter Langwerth von Simmern † | Auxiliary Bishop of Regensburg, Germany |
| 25 Jun | 33.4 | Appointed | Jean-François-Joseph de Rochechouard de Faudoas † | Cardinal, Bishop of Laon, France |
| 2 Jul | 51.1 | Ordained Bishop | José Cayetano Paravicino, O.F.M. † | Bishop of Paraguay | Bishop of Trujillo, Peru |
| 3 Jul | 44.4 | Confirmed | Bonifatius (Giovanni Giuseppe) Cecotti, O.F.M. † | Bishop of Pedena, Austria |
| 61.8 | Appointed | Aloysius Foscari † | Archbishop of Venezia {Venice}, Italy | Patriarch |
| 43.5 | Appointed | José Morales Blanco † | Bishop of Palencia, Spain |
| 9 Jul | 24.5 | Ordained Priest | Tomasz Ignacy Zienkowicz † | Priest | Auxiliary Bishop Emeritus of Vilnius, Lithuania |
| 12 Jul | | Born | Vicente Navas, O.P. † | Mérida, Spain | Bishop of Comayagua, Honduras |
| 16 Jul | 103.5 | Died | Henri de Briqueville † | Bishop of Cahors, France |
| Born | Vincenzo Calà † | Napoli | Archbishop of Sorrento, Italy |
| 20 Jul | 57.6 | Appointed | Pedro Morcillo Rubio de Suñón † | Bishop of Cuzco, Peru |
| 21 Jul | 65.5 | Died | João de Faro, O.F.M. † | Bishop of Santiago de Cabo Verde |
| 23 Jul | 35.1 | Ordained Bishop | Joachim-Enjobert de Martiliat, M.E.P. † | Titular Bishop of Echinus | Vicar Apostolic Emeritus of Yünnan, China |
| 26 Jul | 60.0 | Died | Jakob Maximilian Reichsgraf von Thun und Hohenstein † | Bishop of Gurk, Austria |
| 28 Jul | | Born | Ignacy Jan Zygmunt von Raczynski † | Maloszyn | Archbishop Emeritus of Gniezno, Poland |
| 7 Aug | 39.6 | Appointed | José Alcaraz Belluga † | Bishop of Tarazona, Spain | Bishop Emeritus |
| 55.5 | Appointed | Andrés Vergara Uribe † | Bishop of Santa Cruz de la Sierra, Bolivia |
| 10 Aug | 54.6 | Ordained Bishop | Lawrence William York, O.S.B. † | Titular Bishop of Nebbi | Vicar Apostolic Emeritus of Western District, England, Great Britain |
| 11 Aug | | Born | José da Costa e Torres † | Setúbal | Archbishop of Braga, Portugal |
| 20 Aug | 38.1 | Appointed | Christophe de Beaumont du Repaire † | Bishop of Bayonne, France | Archbishop of Paris, France |
| 38.6 | Appointed | Bertrand-Jean-Baptiste-René du Guesclin † | Bishop of Cahors, France |
| 43.3 | Appointed | Jacques-Bonne Gigault de Bellefonds † | Archbishop of Arles, France | Archbishop of Paris, France |
| 44.1 | Installed | Francisco Pablo Matos Coronado † | Bishop of Michoacán, Michoacán, México |
| 81.6 | Died | Gregorio Téllez, O.F.M. Conv. † | Bishop Emeritus of Ciudad Rodrigo, Spain |
| 27 Aug | 51.7 | Ordained Bishop | José Ignacio Mijares Solórzano y Tobar † | Bishop of Santa Marta, Colombia |
| 3 Sep | 39.6 | Ordained Bishop | José Alcaraz Belluga † | Bishop of Tarazona, Spain | Bishop Emeritus |
| 40.8 | Ordained Bishop | Gaspar Molina Rocha, O.S.A. † | Bishop of Almería, Spain |
| 5 Sep | | Born | Sébastien-Michel Amelot † | Angers | Bishop Emeritus of Vannes, France |
| 7 Sep | 57.2 | Appointed | Pedro de la Cuadra Achica † | Archbishop of Burgos, Spain |
| 10 Sep | 44.6 | Ordained Bishop | Bonifatius (Giovanni Giuseppe) Cecotti, O.F.M. † | Bishop of Pedena, Austria |
| 61.9 | Ordained Bishop | Aloysius Foscari † | Archbishop of Venezia {Venice}, Italy | Patriarch |
| 18 Sep | 43.0 | Confirmed | Adam Stanisław Grabowski † | Bishop of Warmia, Poland |
| 33.6 | Confirmed | Jean-François-Joseph de Rochechouard de Faudoas † | Cardinal, Bishop of Laon, France |
| 56.5 | Appointed | Bernardino Ignazio Rovèro, O.F.M. Cap. † | Archbishop (Personal Title) of Novara, Italy | Bishop |
| 2 Oct | | Born | Franz Karl Maria Cajetan Reichsgraf von Firmian † | Salzburg | Auxiliary Bishop of Passau, Germany |
| 6 Oct | 31.8 | Appointed | Arnaud-François Lefèbvre, M.E.P. † | Vicar Apostolic of Cochin {Cocincina}, Viêt Nam |
| 31.8 | Appointed | Arnaud-François Lefèbvre, M.E.P. † | Titular Bishop of Nea Aule | Vicar Apostolic of Cochin {Cocincina}, Viêt Nam |
| 7 Oct | | Born | Innocenzo Maria Lirutti, O.S.B. † | Villafreda | Bishop of Verona, Italy |
| 28.4 | Appointed | Josef Maria Reichsgraf von Thun und Hohenstein † | Bishop of Gurk, Austria | Bishop of Passau, Germany |
| 15 Oct | 38.8 | Ordained Bishop | Bertrand-Jean-Baptiste-René du Guesclin † | Bishop of Cahors, France |
| 33.7 | Ordained Bishop | Jean-François-Joseph de Rochechouard de Faudoas † | Cardinal, Bishop of Laon, France |
| 16 Oct | | Born | Jan Kanty Podhorodenski † | Wlodzimierz Wolynski | Auxiliary Bishop of Luceoria o Łuck e Zytomir o Zytomierz, Ukraine |
| 24 Oct | | Born | Joaquín González Terán, O.P. † | Cádiz | Bishop Emeritus of Albarracin, Spain |
| 31 Oct | 38.0 | Appointed | Jacques-Marie de Caritat de Condorcet † | Bishop of Gap, France | Bishop of Lisieux, France |
| 2 Nov | | Born | Pierre-Joseph-Georges Pigneau de Béhaine, M.E.P. † | Origny-en-Thiérache, France | Vicar Apostolic of Cochin {Cocincina}, Viêt Nam |
| 5 Nov | 46.8 | Ordained Bishop | Mateo de Zamora y Penagos, O.F.M. † | Bishop of Yucatán (Mérida), Yucatán, México |
| 51.5 | Ordained Bishop | Diego Martínez Garrido, O.S. † | Bishop of Cartagena, Colombia | Bishop Emeritus |
| 43.8 | Ordained Bishop | José Morales Blanco † | Bishop of Palencia, Spain |
| 10 Nov | | Born | Nicola Laparelli † | Cortona | Bishop of Cortona, Italy |
| 17 Nov | 38.3 | Confirmed | Christophe de Beaumont du Repaire † | Bishop of Bayonne, France | Archbishop of Paris, France |
| 19 Nov | | Installed | Inácio de Santa Teresa, O.S.A. † | Bishop of Faro {Algarve}, Portugal |
| 20 Nov | 80.1 | Died | Melchior de Polignac † | Cardinal, Archbishop of Auch, France |
| 28 Nov | 78.2 | Died | Louis-François Du Plessis de Mornay, O.F.M. Cap. † | Bishop Emeritus of Québec, Québec, Canada |
| 3 Dec | | Born | Francisco Javier Utrera † | Tartanedo | Bishop of Cádiz, Spain |
| 6 Dec | | Born | Nicolás Videla del Pino † | Córdoba | Bishop of Salta, Argentina |
| 8 Dec | 43.3 | Installed | Adam Stanisław Grabowski † | Bishop of Warmia, Poland |
| 11 Dec | 75.9 | Died | Tomás José Ruiz Montes † | Bishop of Cartagena (en España) |
| 20 Dec | 38.1 | Confirmed | Jacques-Marie de Caritat de Condorcet † | Bishop of Gap, France | Bishop of Lisieux, France |
| 43.6 | Confirmed | Jacques-Bonne Gigault de Bellefonds † | Archbishop of Arles, France | Archbishop of Paris, France |
| 51.9 | Appointed | Franz Joachim Reichsritter Schmid von Altenstadt † | Auxiliary Bishop of Regensburg, Germany |
| 51.9 | Appointed | Franz Joachim Reichsritter Schmid von Altenstadt † | Titular Bishop of Lagania | Auxiliary Bishop of Regensburg, Germany |
| 23 Dec | 24.1 | Ordained Priest | François-Armand-Auguste de Rohan-Soubise-Ventadour † | Priest of Strasbourg, France | Cardinal, Bishop |
| 24 Dec | 38.4 | Ordained Bishop | Christophe de Beaumont du Repaire † | Bishop of Bayonne, France | Archbishop of Paris, France |
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