| Date | Age | Event | Bishop | Title | Current Title |
| unknown | 23.8 | Ordained Priest | Johann Joseph Anton Blatter † | Priest of Sion {Sitten}, Switzerland | Bishop |
| Died | Giovanni Cito † | Bishop of Lettere-Gragnano, Italy |
| 81.6 | Died | Daniel de Cosnac † | Archbishop of Aix, France |
| Appointed | Ludovico Anselmo Gualtieri † | Bishop of Veroli, Italy | Bishop of Todi, Italy |
| 26.9 | Ordained Priest | Johann Christian Adam Reichsfreiherr von Königsfeld † | Priest of Regensburg, Germany | Titular Bishop of Erythrae |
| 45.0 | Ordained Bishop | José Patricio Navarro † | Bishop of Astorga, Spain |
| 62.0 | Ordained Bishop | Benito Omañana † | Bishop of Jaén, Spain |
| 55.9 | Ordained Bishop | Andrés Orueta Barasorda † | Bishop of Valladolid, Spain |
| Died | Pedro Portocarrero y Guzmán † | Patriarch of West Indies, Spain |
| Died | José de Santa Maria Saldanha, O.F.M. † | Bishop of Porto, Portugal |
| Died | Louis-Alphonse de Valbelle † | Bishop of Saint-Omer, France |
| Appointed | François de Valbelle de Tourves † | Bishop of Saint-Omer, France |
| Jan | | Born | Henri-Marie du Breuil de Pontbriand † | Pleurtuit, France | Bishop of Québec, Québec, Canada |
| 1 Jan | 44.0 | Ordained Bishop | Francisco Valero Losa † | Bishop of Badajoz, Spain | Archbishop of Toledo, Spain |
| 12 Jan | | Born | Johann Friedrich von Lasser † | Mainz | Auxiliary Bishop of Mainz, Germany |
| 14 Jan | 83.0 | Died | Alexander Dunbar Winchester (Winster) † | Prefect Emeritus of Scotland, Great Britain |
| 28 Jan | | Born | Jean-François-Joseph de Rochechouard de Faudoas † | Toulouse | Cardinal, Bishop of Laon, France |
| 3 Feb | | Born | Louis-Albert de Lezay-Marnesia † | Lons-le-Saulnier | Bishop Emeritus of Evreux, France |
| 8 Feb | 79.2 | Died | Matthias Starck † | Auxiliary Bishop Emeritus of Mainz, Germany |
| 10 Feb | 52.2 | Appointed | Charles-Gaspard-Guillaume de Vintimille du Luc † | Archbishop of Aix, France | Archbishop of Paris, France |
| 16 Feb | | Born | Adam Friedrich Reichsgraf von Seinsheim † | Regensburg | Bishop of Würzburg, Germany |
| 20 Feb | 65.1 | Ordained Bishop | Manuel de Santo Tomás Mendoza, O.P. † | Bishop of Almería, Spain | Bishop of Málaga, Spain |
| 27 Feb | 49.7 | Confirmed | Claude-Maur d'Aubigné † | Archbishop of Rouen, France |
| Mar | 58.1 | Died | Benito Noriega, O.F.M. † | Bishop of Acerra (Cerenthia, Acerrae), Italy |
| 3 Mar | 47.2 | Died | Sigmund Carl Reichsgraf von Castel-Barco † | Bishop of Chiemsee, Germany |
| 12 Mar | 46.1 | Appointed | Johann Adam Nieberlein † | Auxiliary Bishop of Eichstätt, Germany |
| 46.1 | Appointed | Johann Adam Nieberlein † | Titular Bishop of Dioclea | Auxiliary Bishop of Eichstätt, Germany |
| 62.0 | Appointed | Johann Kasimir Röls † | Auxiliary Bishop of Augsburg, Germany |
| 62.0 | Appointed | Johann Kasimir Röls † | Titular Bishop of Amyclae | Auxiliary Bishop of Augsburg, Germany |
| 27 Mar | | Born | José Vicente Díaz Bravo, O. Carm. † | Tudela, Spain | Bishop of Durango, Durango, México |
| Born | Antonio Gómez de la Torre y Jaraveitia † | Bilbao | Bishop of Jaén, Spain |
| 1 Apr | 48.5 | Appointed | Johann Sigmund Graf von Kuenburg † | Bishop of Chiemsee, Germany |
| 3 Apr | 54.0 | Ordained Priest | John Wallace † | Priest | Coadjutor Vicar Apostolic of Lowland District, Scotland, Great Britain |
| 11 Apr | 39.1 | Appointed | Philipp Carl Fürst von Fürstenberg † | Bishop of Lavant, Slovenia |
| 21 Apr | 43.3 | Installed | Luis Francisco Romero † | Bishop of Santiago de Chile | Archbishop of La Plata o Charcas, Bolivia |
| 28 Apr | | Resigned | Domenico De Zaulis † | Bishop of Veroli, Italy |
| 29 Apr | 46.2 | Ordained Bishop | Johann Adam Nieberlein † | Titular Bishop of Dioclea | Auxiliary Bishop of Eichstätt, Germany |
| 30 Apr | 80.6 | Appointed | Galeazzo Marescotti † | Cardinal-Priest of S. Lorenzo in Lucina | Cardinal, Bishop Emeritus of Tivoli, Italy |
| 1 May | 39.1 | Ordained Priest | Philipp Carl Fürst von Fürstenberg † | Priest of Lavant, Slovenia | Bishop |
| 6 May | 85.0 | Died | Bl. François de Laval de Montmorency † | Bishop Emeritus of Québec, Québec, Canada |
| Ordained Bishop | Ennemond Alleman de Montmartin † | Bishop of Grenoble, France |
| Born | Aldrago Antonio de Piccardi † | Trieste | Bishop of Senj (-Modruš), Croatia |
| 12 May | 45.7 | Appointed | Antonio Baistrocchi, O. Carm. † | Vicar Apostolic of Great Moghul (Mughals), India |
| 45.7 | Appointed | Antonio Baistrocchi, O. Carm. † | Titular Bishop of Anastasiopolis | Vicar Apostolic of Great Moghul (Mughals), India |
| 13 May | | Born | Max Friedrich Reichsgraf von Königsegg und Rothenfels † | Köln | Archbishop of Köln {Cologne}, Germany |
| 14 May | 66.4 | Appointed | Diego Morcillo Rubio de Suñón de Robledo, O.SS.T. † | Bishop of La Paz, Bolivia | Archbishop of Lima, Peru |
| 52.5 | Confirmed | Charles-Gaspard-Guillaume de Vintimille du Luc † | Archbishop of Aix, France | Archbishop of Paris, France |
| 15 May | | Died | Manuel de Escalante Colombres y Mendoza † | Bishop of Michoacán, Michoacán, México |
| 20 May | 62.2 | Ordained Bishop | Johann Kasimir Röls † | Titular Bishop of Amyclae | Auxiliary Bishop of Augsburg, Germany |
| 26 May | 44.4 | Installed | Réné François Beauvau de Rivau † | Bishop of Bayonne, France | Archbishop of Toulouse, France |
| 2 Jun | 24.0 | Ordained Priest | Juan Francisco Navarro Salvador y Gilabert † | Priest | Bishop of Albarracin, Spain |
| 5 Jun | | Born | Johann Philipp Karl Anton Reichsfreiherr von Fechenbach zu Laudenbach † | Würzburg | Titular Bishop of the unknown of Titular See |
| 24 Jun | 47.5 | Ordained Bishop | Pierre de Baglion de la Salle de Saillant † | Bishop of Mende, France |
| 28 Jun | 43.5 | Appointed | Juan Benito Garret y Arlovi, O. Praem. † | Bishop of León en Nicaragua |
| 78.5 | Died | Melchor de Liñán y Cisneros † | Archbishop of Lima, Peru |
| 11 Jul | | Born | Franz Karl Joseph Reichsgraf von Fugger-Glött † | Innsbruck | Auxiliary Bishop Emeritus of Konstanz {Constance}, Germany |
| 12 Jul | 51.4 | Died | Johannes Petrus Verhorst † | Auxiliary Bishop of Trier, Germany |
| 25 Jul | 48.8 | Installed | Johann Sigmund Graf von Kuenburg † | Bishop of Chiemsee, Germany |
| 29 Jul | 37.6 | Ordained Bishop | Charles-François de Châteauneuf de Rochebonne † | Bishop of Noyon, France | Archbishop of Lyon, France |
| 5 Aug | | Born | Heinrich Joseph von Nitschke † | Mainz | Auxiliary Bishop of Bamberg, Germany |
| 12 Aug | 66.2 | Died | Guillermo Goñalons, O.S.A. † | Bishop of Solsona, Spain |
| 14 Aug | 59.6 | Appointed | Pedro Nogales Dávila † | Bishop of Tlaxcala, Tlaxcala, México |
| 18 Aug | | Born | Esteban Villanova Colomer † | Olot | Bishop of Tarazona, Spain |
| 19 Aug | 39.6 | Appointed | Manuel González Virtus † | Bishop of Córdoba (Tucumán), Argentina |
| 23 Aug | | Born | João Evangelista Pereira da Silva, T.O.R. † | Gouvães, Portugal | Bishop of Belém do Pará, Brazil |
| 25 Aug | | Born | Luis Fernando de Hoyos y Mier † | Bores, Spain | Bishop of Michoacán, Michoacán, México |
| 28 Aug | | Died | Antonio de León y Becerra † | Bishop of Arequipa, Peru |
| 8 Sep | | Born | Francisco Laso Santos de San Pedro † | Pozo de la Vega | Bishop of Santander, Spain |
| 22 Sep | | Born | Leopold Ernst Graf von Firmian † | Deutschmetz | Cardinal, Bishop of Passau, Germany |
| 24 Sep | 53.3 | Appointed | Juan Bautista Alvarez de Toledo, O.F.M. † | Bishop of Chiapas (Ciudad Real de Chiapas), Chiapas, México | Bishop Emeritus of Guadalajara, Jalisco, México |
| 42.7 | Appointed | Francisco de Paula Garcés Marcilla, O.M. † | Bishop of Huesca, Spain |
| 49.7 | Appointed | Rodrigo Marín Rubio † | Bishop of Segorbe, Spain | Bishop of Jaén, Spain |
| 62.7 | Appointed | Benito Omañana † | Bishop of Jaén, Spain |
| Born | Manuel Antonio Rojo del Rio Vera † | Tula, México | Archbishop of Manila, Philippines |
| 60.9 | Appointed | Francisco a São Agostinho, T.O.R. † | Bishop of Santiago de Cabo Verde |
| 2 Oct | | Born | Andrés Porras Termes † | Melias | Bishop of Calahorra y La Calzada, Spain |
| 3 Oct | 45.4 | Appointed | Carlos Borja Centellas y Ponce de León † | Cardinal, Patriarch of West Indies, Spain |
| 56.8 | Appointed | Philip Michael Ellis, O.S.B. † | Bishop of Segni, Italy |
| 43.8 | Confirmed | Juan Benito Garret y Arlovi, O. Praem. † | Bishop of León en Nicaragua |
| 63.0 | Appointed | Diego Montero del Aguila † | Bishop of Concepción, Chile | Bishop of Trujillo, Peru |
| 49.1 | Appointed | Anton Ignaz Müntzer † | Auxiliary Bishop of Wrocław, Poland |
| 49.1 | Appointed | Anton Ignaz Müntzer † | Titular Bishop of Madaurus | Auxiliary Bishop of Wrocław, Poland |
| 56.6 | Appointed | Andrés Orueta Barasorda † | Bishop of Valladolid, Spain |
| Appointed | Pedro Gregorio Padilla † | Bishop of Barbastro, Spain | Bishop of Huesca, Spain |
| 54.4 | Appointed | Marcelino Siuri Navarro † | Bishop of Orense, Spain | Bishop of Córdoba, Spain |
| 7 Oct | 59.8 | Ordained Bishop | Pedro Nogales Dávila † | Bishop of Tlaxcala, Tlaxcala, México |
| 23 Oct | | Born | Johann Anton Freiherr von Federspiel † | Fürstenburg | Bishop of Chur, Switzerland |
| 28 Oct | 56.8 | Installed | Philip Michael Ellis, O.S.B. † | Bishop of Segni, Italy |
| Nov | | Died | Giuseppe Cianti † | Bishop of Nepi e Sutri, Italy |
| 3 Nov | | Born | Ján Terlanday † | Chynorany | Bishop of the unknown of Titular See |
| 53.0 | Installed | Charles-Gaspard-Guillaume de Vintimille du Luc † | Archbishop of Aix, France | Archbishop of Paris, France |
| 4 Nov | 67.2 | Ordained Bishop | Jacques Duding † | Bishop of Lausanne, Switzerland |
| 6 Nov | | Born | Francisco Javier Arriaza † | Madrid | Bishop of Santander, Spain |
| 4 Dec | | Born | Giorgio Doria † | Genoa | Cardinal, Titular Archbishop of Chalcedon |
| 13 Dec | 34.8 | Appointed | Friedrich Karl Reichsgraf von Schönborn † | Coadjutor Bishop of Bamberg, Germany | Bishop of Würzburg, Germany |
| 15 Dec | 53.5 | Ordained Bishop | Juan Bautista Alvarez de Toledo, O.F.M. † | Bishop of Chiapas (Ciudad Real de Chiapas), Chiapas, México | Bishop Emeritus of Guadalajara, Jalisco, México |
| 16 Dec | 82.0 | Died | Juan de Ortega Cano Montañez y Patiño † | Archbishop of México, Federal District |
| 21 Dec | | Born | Manuel Buenaventura Figueroa Barrero † | Santiago de Compostela, Spain | Patriarch of West Indies, Antilles |
| 24 Dec | 79.0 | Died | Otto de la Bourde † | Bishop of Gurk, Austria |