| Date | Age | Event | Bishop | Title | Current Title |
|---|
| unknown | | Appointed | Giovanni Anzani † | Bishop of Campagna, Italy |
| 70.0 | Died | Giovanni Battista Braschi † | Bishop Emeritus of Sarsina, Italy |
| Appointed | Francesco Carafa † | Bishop of Nardò, Italy |
| Born | Bernardo Maria della Torre † | | Bishop of Castellammare di Stabia, Italy |
| Died | Francesco Saverio Fontana † | Bishop of Campagna, Italy |
| 57.0 | Appointed | Franciszek Antoni Kobielski † | Bishop of Kamyanets-Podilskyi, Ukraine | Bishop of Luceoria o Łuck, Ukraine |
| Appointed | François de Lastic † | Bishop of Castres, France |
| Died | Francesco Maria Loyero † | Bishop of Nicastro, Italy |
| Born | Alexander MacDonald † | Bornish, South Uist | Vicar Apostolic of Highland District, Scotland, Great Britain |
| Appointed | Fortunato Palumbo † | Bishop of Trivento, Italy |
| Born | Charles Colbert Seignelay de Castle Hill † | Castle Hill | Bishop Emeritus of Rodez, France |
| Appointed | Józef Eustachy Szembek † | Bishop of Chelm, Poland | Bishop of Płock, Poland |
| 1 Jan | 76.5 | Died | Antonio San Felice † | Bishop of Nardò, Italy |
| 6 Jan | 16.4 | Professed | Inácio de São Caetano, O.C.D. † | Member of Order of Discalced Carmelites | Bishop Emeritus of Penafiel, Portugal |
| 12 Jan | | Born | Pedro Benito Antonio Quevedo y Quintano † | Villanueva del Fresno | Cardinal, Bishop of Orense, Spain |
| 29 Jan | 34.1 | Ordained Bishop | Jean-Gaspard-Gilbert de Chabannas † | Bishop of Agen, France |
| 3 Feb | | Born | Marie-Charles-Isidore de Mercy † | Maubec | Archbishop of Bourges, France |
| 20 Feb | | Born | Benedetto Fenaja, C.M. † | Rome | Titular Archbishop of Philippi |
| 25 Feb | 29.0 | Ordained Priest | Nicola Molinari, O.F.M. Cap. † | Priest of Order of Friars Minor Capuchin | Bishop Emeritus of Ravello, Italy |
| 27 Feb | 37.8 | Confirmed | Jacques-Bonne Gigault de Bellefonds † | Bishop of Bayonne, France | Archbishop of Paris, France |
| 50.2 | Appointed | Bernardo Froilán Saavedra Sanjurjo † | Coadjutor Archbishop of Toledo, Spain |
| 47.5 | Appointed | Lorenzo Taranco Mujaurrieta † | Auxiliary Bishop of Santiago de Compostela, Spain | Bishop of Gerona, Spain |
| 47.5 | Appointed | Lorenzo Taranco Mujaurrieta † | Titular Bishop of Auzia | Bishop of Gerona, Spain |
| 3 Mar | 62.5 | Died | José Francisco Bermúdez Mandía † | Bishop of Astorga, Spain |
| 6 Mar | | Born | Louis François Marc Hilaire de Conzié † | S. Martin du Mont | Bishop of Arras, France |
| Born | Antonio Martínez de la Plaza † | Granada | Bishop of Cádiz, Spain |
| 16 Mar | 38.7 | Installed | Francisco Pablo Matos Coronado † | Bishop of Yucatán (Mérida), Yucatán, México | Bishop of Michoacán, Michoacán, México |
| 25 Mar | 37.9 | Ordained Bishop | Jacques-Bonne Gigault de Bellefonds † | Bishop of Bayonne, France | Archbishop of Paris, France |
| 31 Mar | 32.1 | Ordained Priest | Joseph Wilhelm Rinck von Balderstein † | Priest of Basel, Switzerland | Bishop |
| Apr | 64.0 | Resigned | Andrés de Orbe y Larreátegui † | Archbishop of Valencia, Spain | Archbishop Emeritus |
| 1 Apr | 51.8 | Appointed | Pedro de la Cuadra Achica † | Bishop of Osma, Spain | Archbishop of Burgos, Spain |
| 5 Apr | 50.8 | Installed | Juan Bravo del Rivero y Correa † | Bishop of Santiago de Chile | Bishop of Arequipa, Peru |
| 8 Apr | 88.1 | Ordained Bishop | Francisco Ignacio Añoa Busto † | Bishop of Pamplona, Spain | Archbishop of Zaragoza, Spain |
| Died | Tomás Broto Pérez † | Bishop of Solsona, Spain |
| 11 Apr | 52.1 | Appointed | Gregorio Galindo † | Bishop of Lérida, Spain |
| 14 Apr | | Appointed | Giovanni Scalea † | Bishop of San Severo, Italy |
| 17 Apr | | Born | Nikolaj Bani † | Ragusa | Archbishop (Personal Title) of Dubrovnik (Ragusa), Croatia |
| 6 May | 57.3 | Ordained Bishop | Martín de Elizacoechea † | Bishop of Durango, Durango, México | Bishop of Michoacán, Michoacán, México |
| 10 May | 58.6 | Died | Laszlo Adam Erdody † | Bishop of Nitra, Slovakia |
| 12 May | | Born | Domingo Ramón Fernández Angulo † | Fonseca | Bishop of Tui, Spain |
| Born | Francisco Ignacio Iñigo Angulo † | Villasuso | Bishop of Osma, Spain |
| 13 May | 50.4 | Ordained Bishop | Bernardo Froilán Saavedra Sanjurjo † | Coadjutor Archbishop of Toledo, Spain |
| 17 May | | Born | Henri Henrard, O.F.M. Conv. † | Oleye | Apostolic Administrator Emeritus of Liège, Belgium |
| 20 May | | Born | Carlo Crivelli † | Milan | Cardinal, Official of the Roman Curia - Other |
| 26 May | | Born | Juan Francisco Jiménez del Río † | Oncala | Archbishop of Valencia, Spain |
| 10 Jun | 51.9 | Ordained Bishop | Pedro de la Cuadra Achica † | Bishop of Osma, Spain | Archbishop of Burgos, Spain |
| 14 Jun | | Born | Claude de Bexon † | Sarrable | Bishop Emeritus of Namur {Namen}, Belgium |
| 26 Jun | 81.0 | Died | Honoré Quiqueran de Beaujeu † | Bishop of Castres, France |
| Jul | 47.9 | Ordained Bishop | Lorenzo Taranco Mujaurrieta † | Titular Bishop of Auzia | Bishop of Gerona, Spain |
| 7 Jul | 65.7 | Died | José a Santa Maria de Jesus Azevedo Leal, O.F.M. † | Bishop of Santiago de Cabo Verde |
| 20 Jul | | Born | Giuseppe Firrao † | Fagnano | Cardinal, Secretary of the Congregation of Bishops and Regulars |
| 23 Jul | 60.5 | Died | Sebastián Lorenzo Pizarro, O.S.Bas. † | Bishop of Puerto Rico (Porto Rico) |
| 30 Jul | | Born | Carlo Bellisomi † | Pavia | Cardinal, Bishop of Cesena, Italy |
| 2 Aug | 63.1 | Died | João de Mendonça † | Bishop of Guarda, Portugal |
| 6 Aug | | Born | Sandor Bodonyi † | Berki | Auxiliary Bishop of Vác, Hungary |
| 7 Aug | | Born | Charles-François d'Aviau Du Bois de Sanzay † | Saint-Martin-de-Sanzay | Archbishop of Bordeaux, France |
| Born | Cayetano Francos y Monroy † | Villavicencio de los Caballeros, Spain | Archbishop of Guatemala |
| 13 Sep | | Born | Juan Bautista de Zengotita y Bengoa, O. de M. † | Bérriz, Spain | Bishop of Puerto Rico (Porto Rico) |
| 19 Sep | 65.1 | Died | Franz Ludwig Reichsfreiherr von Schenk von Castell † | Bishop of Eichstätt, Germany |
| 22 Sep | 41.5 | Ordained Priest | Johann Philipp Anton Reichsfreiherr von Franckenstein † | Priest of Mainz, Germany | Bishop of Bamberg, Germany |
| Born | Alessandro Garimberti † | Parma | Bishop of Borgo San Donnino, Italy |
| 26 Sep | 38.1 | Appointed | Adam Stanisław Grabowski † | Bishop of Chelmno (Culma), Poland | Bishop of Warmia, Poland |
| Born | Franz Freiherr von Raigesfeld, S.J. † | Graz | Auxiliary Bishop of Ljubljana, Slovenia |
| 27 Sep | 68.7 | Died | Jean-Jacques Tessier de Quéralay † | Vicar Apostolic of Siam, Thailand |
| 12 Oct | | Born | Michal Jerzy Poniatowski † | | Archbishop of Gniezno, Poland |
| 13 Oct | 67.7 | Died | Francisco de Santiago y Calderón, O. de M. † | Bishop of Antequera, Oaxaca, México |
| 18 Oct | | Born | Alexandre-Angélique Talleyrand de Périgord † | Paris | Cardinal, Archbishop of Paris, France |
| 21 Oct | 49.8 | Died | Antonio Claudio Alvarez de Quiñones † | Archbishop of Santafé en Nueva Granada, Colombia |
| 11 Nov | | Ordained Bishop | Hilario a Jesu Costa, O.A.D. † | Titular Bishop of Corycus | Vicar Apostolic of Eastern Tonking {Tonkino Orientale}, Viêt Nam |
| 19 Nov | 41.0 | Appointed | Andrzej Stanisław Załuski † | Bishop of Luceoria o Łuck, Ukraine | Bishop of Kraków, Poland |
| 25 Nov | 49.9 | Ordained Bishop | Juan Angel Rodríguez, O.SS.T. † | Archbishop of Manila, Philippines |
| 27 Nov | 52.0 | Appointed | Domingo Antonio de Zatarain † | Bishop of León en Nicaragua |
| 1 Dec | 53.0 | Died | Lucas Cuartas Oviedo † | Bishop of Huesca, Spain |
| 57.3 | Died | Jean Baptiste Gillis † | Auxiliary Bishop of Liège, Belgium |
| Born | José Vicente Lamadrid † | Potes | Bishop of Málaga, Spain |
| 5 Dec | 62.4 | Appointed | Johann Anton Reichsfreiherr von Freyberg-Hopferau † | Bishop of Eichstätt, Germany |
| 17 Dec | | Born | Louis-André de Grimaldi † | Cagnes | Bishop Emeritus of Noyon, France |
| 18 Dec | 82.6 | Died | Joseph-Ignace de Foresta † | Bishop Emeritus of Apt, France |
| 19 Dec | 73.0 | Died | Juan de Arregui, O.F.M. † | Bishop of Buenos Aires, Argentina |
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