| Date | Age | Event | Bishop | Title | Current Title |
| unknown | 23.4 | Ordained Priest | Carl Laurenz Cardona † | Priest of Meissen (Meißen) {Lusazia o Lausitz; Sassonia}, Germany | Prefect |
| 51.0 | Died | Paolo Collia, O.M. † | Bishop of Nicotera, Italy |
| 36.2 | Appointed | Emmanuel-Henri-Timoléon de Cossé-Brissac † | Bishop of Condom, France |
| 58.4 | Ordained Bishop | Diego Fermín de Vergara, O.S.A. † | Bishop of Popayán, Colombia | Archbishop of Santafé en Nueva Granada, Colombia |
| Born | Emmanuel-Louis de Grossoles de Flamarens † | Angers | Bishop of Périgueux (Vesuna), France |
| 28.0 | Ordained Priest | Gottfried Xaver von Laimbeckhoven, S.J. † | Priest of Society of Jesus | Bishop of Nanking [Nanjing], China |
| Born | François-Joseph de La Rochefoucauld-Bayers † | Angouleme | Bishop of Beauvais, France |
| Appointed | Domenico Marzano † | Bishop of Bova, Italy |
| Died | Tommaso Mellina † | Bishop of Bova, Italy |
| Born | José do Menino Jesus (Deus), O.C.D. † | Jacobina | Bishop of Viseu, Portugal |
| 32.8 | Appointed | Jean-François de Chastellard de Montillet de Grenaud † | Bishop of Oloron, France | Archbishop of Auch, France |
| Appointed | Nicolas Navarre † | Auxiliary Bishop of Lyon, France |
| Died | Dominic O’Daly, O.P. † | Bishop of Achonry, Ireland |
| 74.1 | Resigned | Giuseppe Olgiati † | Bishop of Como, Italy | Bishop Emeritus |
| Appointed | Pedro Pardo de Figueroa † | Bishop of Guatemala (Santiago de Guatemala), Guatemala | Archbishop of Guatemala |
| 72.0 | Resigned | Joseph de Révol † | Bishop of Oloron, France | Bishop Emeritus |
| 44.0 | Appointed | François de Serret de Gaujac † | Bishop of Aire, France |
| Appointed | Scipione Sersale † | Bishop of Sora, Italy | Bishop of Lecce, Italy |
| 2 Jan | | Born | Jules-Basile Ferron de La Ferronnays † | Ancenis | Bishop of Lisieux, France |
| 8 Jan | | Born | John Carroll † | Upper Marlboro, MD | Archbishop of Baltimore, Maryland, USA |
| 9 Jan | 33.0 | Ordained Bishop | François de Crussol d'Uzès † | Bishop of Blois, France | Archbishop of Toulouse, France |
| 17 Jan | 51.7 | Appointed | Diego Felipe Perea Magdaleno † | Bishop of Almería, Spain | Archbishop of Burgos, Spain |
| 41.0 | Elevated to Cardinal | Giuseppe Spinelli † | Cardinal, Cardinal-Bishop of Ostia |
| 25 Jan | | Born | Joseph Paul Sedeler † | Praha | Auxiliary Bishop of Praha {Prague}, Czech Republic |
| 26 Jan | | Appointed | Guilio Capece Scondito † | Bishop of Anglona-Tursi, Italy |
| 30 Jan | 58.3 | Ordained Bishop | Francesco Antonio Correr, O.F.M. Cap. † | Patriarch of Venezia {Venice}, Italy |
| 1 Feb | 59.8 | Died | Francisco de la Torre Herrera † | Bishop of León, Spain |
| 3 Feb | | Born | Ignacy Błażej Franciszek Krasicki † | Dubiecko | Archbishop of Gniezno, Poland |
| 25 Feb | 39.2 | Resigned | Jean-Charles de Ségur † | Bishop of Saint-Papoul, France | Bishop Emeritus |
| Mar | 45.4 | Appointed | Georges-Lazare Berger de Charancy † | Bishop of Saint-Papoul, France | Bishop of Montpellier, France |
| 1 Mar | | Born | Diego Gregorio Cadello † | Cagliari | Cardinal, Archbishop of Cagliari, Italy |
| 7 Mar | | Born | Gabriel-Laurent Paillou(x) † | Puybelliard | Bishop of La Rochelle, France |
| 14 Mar | 41.1 | Installed | Giuseppe Spinelli † | Cardinal-Priest of S. Pudenziana | Cardinal, Cardinal-Bishop of Ostia |
| 39.5 | Appointed | Giovanni Francesco Stoppani † | Titular Archbishop of Corinthus | Cardinal, Cardinal-Bishop of Palestrina |
| 16 Mar | | Born | Joseph-Antoine (Maxime) Guisolan, O.F.M. Cap. † | Chénens | Bishop of Lausanne, Switzerland |
| 20 Mar | 89.2 | Died | Jean-Baptiste de Verthamon † | Bishop of Pamiers, France |
| 21 Mar | | Died | Giosafatte (Giosafat) Battistelli † | Bishop of Foligno, Italy |
| 23 Mar | | Born | Victoriano López Gonzalo † | Terzaga, Spain | Bishop of Cartagena (en España) |
| 25 Mar | 39.5 | Ordained Bishop | Giovanni Francesco Stoppani † | Titular Archbishop of Corinthus | Cardinal, Cardinal-Bishop of Palestrina |
| 26 Mar | 25.5 | Ordained Priest | Giuseppe Simonetti † | Priest | Cardinal, Titular Archbishop of Petra in Palaestina |
| 4 Apr | 54.4 | Ordained Bishop | Giacomo Lanfredini † | Bishop of Osimo e Cingoli, Italy | Cardinal, Bishop Emeritus |
| 5 Apr | | Born | Frantisek de Paula Herzan von Harras † | Praha | Cardinal, Bishop of Szombathely, Hungary |
| Born | Francisco de Lemos de Faria Pereira Coutinho † | Rio de Janeiro | Bishop of Coimbra, Portugal |
| 9 Apr | 23.6 | Ordained Priest | Heinrich Bibra, O.S.B. † | Priest of Order of Saint Benedict | Bishop of Fulda, Germany |
| 29.6 | Ordained Priest | Giacomo Gaetano Inghirami † | Priest | Bishop of Arezzo, Italy |
| 12 Apr | 76.1 | Died | Nicolò Gaetano Spínola † | Cardinal, Titular Archbishop of Thebae |
| 22 Apr | 75.3 | Died | François-Marie Abbati † | Bishop of Carpentras, France |
| Born | Johann Leopold Ritter von Hay † | Fulnek | Bishop of Hradec Králové, Czech Republic |
| 24 Apr | 45.0 | Ordained Priest | Cristóbal Almeida † | Priest | Titular Archbishop of Perge |
| 30 Apr | | Born | Giuseppe Ottavio Pochettini † | Racconigi | Bishop of Ivrea, Italy |
| May | 52.0 | Ordained Bishop | Diego Felipe Perea Magdaleno † | Bishop of Almería, Spain | Archbishop of Burgos, Spain |
| 2 May | 22.5 | Ordained Priest | Adam Ernst Bernclau von Schönreith † | Priest of Regensburg, Germany | Auxiliary Bishop |
| Born | Antonio Puñuela Alonso † | Cantalpino | Bishop of Zamora, Spain |
| 4 May | | Born | Luigi Gazzoli † | Terni | Cardinal, Priest of the Roman Curia - Other |
| 6 May | 80.5 | Died | Francisco Olaso Hipenza, O.S.A. † | Bishop of Lérida, Spain |
| 11 May | 51.7 | Appointed | Joseph-Dominique d'Inguimbert † | Bishop of Carpentras, France |
| 22 May | 49.9 | Ordained Bishop | Juan Bravo del Rivero y Correa † | Bishop of Santiago de Chile | Bishop of Arequipa, Peru |
| 25 May | 54.2 | Appointed | Joaquín Fernández de Portocarrero Mendoza † | Titular Patriarch of the Titular See | Cardinal, Cardinal-Bishop of Sabina |
| Appointed | Antonio Malerba † | Bishop of Sant’Angelo dei Lombardi-Bisaccia, Italy |
| 30 May | 54.2 | Ordained Bishop | Joaquín Fernández de Portocarrero Mendoza † | Titular Patriarch of the Titular See | Cardinal, Cardinal-Bishop of Sabina |
| Jun | 52.7 | Appointed | Ercole Michele d'Aragona † | Bishop of Aversa, Italy |
| 1 Jun | 23.5 | Ordained Priest | Franz Josef Graf von Gondola, O.S.B. † | Priest of Order of Saint Benedict | Auxiliary Bishop of Paderborn, Germany |
| 4 Jun | | Born | François-Joseph-Emmanuel de Crussol d'Uzès d'Amboise † | Paris | Bishop of La Rochelle, France |
| 11 Jun | | Born | Andrea Corsini † | Florence, Italy | Cardinal, Cardinal-Bishop of Sabina |
| 24.4 | Ordained Priest | Filippo Sanseverino † | Priest | Bishop Emeritus of Alife, Italy |
| 27 Jun | 50.4 | Appointed | Francesco Maria Alberici † | Bishop of Foligno, Italy |
| 59.4 | Appointed | Ascanio Argelati † | Bishop of Città della Pieve, Italy |
| 45.7 | Confirmed | Georges-Lazare Berger de Charancy † | Bishop of Saint-Papoul, France | Bishop of Montpellier, France |
| 59.1 | Appointed | Serafino Cenci † | Cardinal-Priest of S. Agnese fuori le mura | Cardinal, Archbishop of Benevento, Italy |
| 52.9 | Appointed | Johann Wilhelm Reichsfreiherr von Twickel † | Auxiliary Bishop of Hildesheim, Germany |
| 52.9 | Appointed | Johann Wilhelm Reichsfreiherr von Twickel † | Titular Bishop of Arethusa | Auxiliary Bishop of Hildesheim, Germany |
| 5 Jul | | Born | Luigi Amici † | Camerino | Archbishop of Camerino, Italy |
| 10 Jul | | Ordained Bishop | Nicolas Navarre † | Titular Bishop of Cydonia | Auxiliary Bishop of Lyon, France |
| 63.6 | Ordained Bishop | José Cubero Ramírez de Arellano, O. de M. † | Bishop of Chiapas (Ciudad Real de Chiapas), Chiapas, México |
| 17 Jul | 22.5 | Ordained Priest | Johann Anton Reichsfreiherr von Wolframsdorf † | Priest of Regensburg, Germany | Auxiliary Bishop |
| 25 Jul | 72.4 | Died | José Barnuevo, O.S.B. † | Bishop of Osma, Spain |
| 27 Jul | 42.2 | Appointed | Pedro Felipe de Azúa e Iturgoyen † | Auxiliary Bishop of Concepción, Chile | Archbishop Emeritus of Santafé en Nueva Granada, Colombia |
| 42.2 | Appointed | Pedro Felipe de Azúa e Iturgoyen † | Titular Bishop of Botrys | Archbishop Emeritus of Santafé en Nueva Granada, Colombia |
| 51.7 | Appointed | Lucas Cuartas Oviedo † | Bishop of Huesca, Spain |
| 56.6 | Appointed | Martín de Elizacoechea † | Bishop of Durango, México | Bishop of Michoacán, Michoacán, México |
| 6 Aug | | Born | Kajetan Maria (Ignaz Judas Thaddäus) Reisach, C.R. † | Sandelzhausen | Titular Bishop of Dibon |
| 9 Aug | | Born | Lorenzo de Dominicis † | Foligno | Bishop of Civita Castellana e Orte, Italy |
| 17 Aug | 72.8 | Died | Francesco Barberini (Jr.) † | Bishop of Ostia (-Velletri), Italy | Cardinal, Cardinal-Bishop of Ostia (-Velletri) |
| 21 Aug | 47.6 | Ordained Bishop | Manuel de Ocio y Campo † | Bishop of Cebu, Philippines |
| 23 Aug | | Born | Bartolomé Fabro Palacios † | Logroño, Spain | Bishop of Ayacucho o Huamanga, Peru |
| 25 Aug | | Ordained Bishop | Charles-Joseph Quiqueran de Beaujeu † | Titular Bishop | Bishop of Mirepoix, France |
| 26 Aug | | Born | Antonio Ramón de Espinosa y Lorenzo, O.P. † | Cervera de la Cañada, Spain | Bishop of Mérida, Venezuela |
| 27 Aug | 65.7 | Died | Ludovico Alvares de Figueiredo † | Archbishop of São Salvador da Bahia, Brazil |
| Born | Johann Maximilian Freiherr von Haunold † | Mainz | Auxiliary Bishop of Mainz, Germany |
| Sep | | Born | Laurent-Michel Eon de Cély † | Bayeux | Bishop Emeritus of Apt, France |
| Died | Thaddeus Francis O'Rourke, O.F.M. † | Bishop of Killala, Ireland |
| 1 Sep | 68.9 | Died | Lucantonio Accoramboni † | Bishop of Montalto, Italy |
| 3 Sep | | Born | Jérôme-Marie Champion de Cicé † | Rennes | Archbishop of Aix, France |
| Born | Ranieri Mancini † | Cortona | Bishop Emeritus of Fiesole, Italy |
| 9 Sep | | Born | John Geddes † | Mains of Corridoun, Enzie | Coadjutor Vicar Apostolic Emeritus of Lowland District, Scotland, Great Britain |
| 11 Sep | 53.1 | Ordained Bishop | Johann Wilhelm Reichsfreiherr von Twickel † | Titular Bishop of Arethusa | Auxiliary Bishop of Hildesheim, Germany |
| 12 Sep | 57.7 | Died | Giovanni Battista Rondoni † | Bishop of Assisi, Italy |
| 17 Sep | | Born | Francis Moylan † | Douglas | Bishop of Cork, Ireland |
| 19 Sep | 41.7 | Appointed | Alexander Smith † | Coadjutor Vicar Apostolic of Lowland District, Scotland, Great Britain | Vicar Apostolic |
| 41.7 | Appointed | Alexander Smith † | Titular Bishop of Mosynopolis | Vicar Apostolic of Lowland District, Scotland, Great Britain |
| 20 Sep | 94.7 | Died | João de Casal, O.S.A. † | Bishop of Macau, China |
| Succeeded | Eugénio Trigueiros, O.S.A. † | Bishop of Macau, China | Archbishop of Goa, India |
| 21 Sep | 24.3 | Ordained Priest | François-Louis Pourroy de L'Auberivière † | Priest | Bishop of Québec, Québec, Canada |
| 24 Sep | 25.9 | Ordained Priest | Konstantin Schütz von Holzhausen, O.S.B. † | Priest of Order of Saint Benedict | Auxiliary Bishop of Fulda, Germany |
| 24.1 | Ordained Priest | Domenico Andrea Vegni † | Priest | Bishop of Montalcino, Italy |
| 25 Sep | 45.9 | Ordained Bishop | Georges-Lazare Berger de Charancy † | Bishop of Saint-Papoul, France | Bishop of Montpellier, France |
| 26 Sep | 45.4 | Appointed | Cristóbal Almeida † | Titular Archbishop of Perge |
| 47.1 | Appointed | Cayetano Gil Taboada † | Bishop of Lugo, Spain | Archbishop of Santiago de Compostela, Spain |
| 66.7 | Appointed | Giovanni Romano † | Bishop of Catanzaro, Italy |
| Appointed | Pietro Bonaventura Savini † | Bishop of Montalto, Italy | Bishop Emeritus |
| 31.8 | Appointed | Filippo Niccolò Spinelli † | Bishop of Aversa, Italy |
| 30 Sep | | Appointed | John O'Hart † | Bishop of Achonry, Ireland |
| Oct | 51.9 | Ordained Bishop | Lucas Cuartas Oviedo † | Bishop of Huesca, Spain |
| 2 Oct | 45.4 | Ordained Bishop | Cristóbal Almeida † | Titular Archbishop of Perge |
| 33.6 | Ordained Bishop | Jean-François de Chastellard de Montillet de Grenaud † | Bishop of Oloron, France | Archbishop of Auch, France |
| 3 Oct | | Appointed | Hilario a Jesu Costa, O.A.D. † | Coadjutor Vicar Apostolic of Eastern Tonking {Tonkino Orientale}, Viêt Nam | Vicar Apostolic |
| Appointed | Hilario a Jesu Costa, O.A.D. † | Titular Bishop of Corycus | Vicar Apostolic of Eastern Tonking {Tonkino Orientale}, Viêt Nam |
| 39.7 | Appointed | Valerian Rist, O.F.M. † | Coadjutor Vicar Apostolic of Cochin {Cocincina}, Viêt Nam |
| 39.7 | Appointed | Valerian Rist, O.F.M. † | Titular Bishop of Myndus | Coadjutor Vicar Apostolic of Cochin {Cocincina}, Viêt Nam |
| 6 Oct | | Born | Marco Antonio Gregorina † | Cattaro | Bishop of Kotor (Cattaro), Montenegro |
| 7 Oct | | Born | Jean-Baptiste du Chilleau † | La Charrière | Archbishop of Tours, France |
| 8 Oct | 33.8 | Appointed | Jean-Gaspard-Gilbert de Chabannas † | Bishop of Agen, France |
| 37.4 | Appointed | Jacques-Bonne Gigault de Bellefonds † | Bishop of Bayonne, France | Archbishop of Paris, France |
| 44.8 | Appointed | François-Barthélemi de Salignac de La Mothe-Fénelon † | Bishop of Pamiers, France |
| 17 Oct | 58.8 | Died | Pietro Abbondio Battiloro † | Bishop of Alife, Italy |
| 31 Oct | 66.8 | Installed | Jean d'Yse (d'Ize) de Saléon † | Bishop of Rodez, France | Archbishop of Vienne, France |
| Nov | 53.2 | Died | Ercole Michele d'Aragona † | Bishop of Aversa, Italy |
| 1 Nov | | Born | Filippo Trigona † | Plata | Bishop of Siracusa, Italy |
| 2 Nov | | Born | Giovanni Andrea Avogadro † | Venezia | Bishop Emeritus of Verona, Italy |
| Born | Claude-Louis Rousseau † | Paris | Bishop of Orléans, France |
| 41.8 | Ordained Bishop | Alexander Smith † | Titular Bishop of Mosynopolis | Vicar Apostolic of Lowland District, Scotland, Great Britain |
| 13 Nov | | Born | Cándido Manuel de Torrijos Riguerra, O.P. † | Sesquilé, Colombia | Bishop of Mérida, Venezuela |
| 21 Nov | 46.1 | Appointed | Muzio Gaeta (Jr.) † | Archbishop of Bari (-Canosa), Italy | Archbishop of Capua, Italy |
| 26 Nov | | Born | Nicola Zoppetti, O.S.A. † | Foligno | Bishop of Fabriano e Matelica, Italy |
| 2 Dec | 33.5 | Appointed | Michele Carlo Althann † | Archbishop (Personal Title) of Vác, Hungary | Bishop |
| 40.9 | Appointed | Ermest Amadeus Thomas Reichsgraf von Attems † | Auxiliary Bishop of Passau, Germany | Bishop of Ljubljana, Slovenia |
| 57.7 | Installed | Juan Leandro Gómez de Parada Valdez y Mendoza † | Bishop of Guadalajara, Jalisco, México |
| 49.9 | Appointed | Egidio Antonio Isabelli † | Bishop of Alife, Italy |
| Appointed | Ignazio Stelluti † | Bishop of Macerata-Tolentino, Italy |
| 3 Dec | | Born | Jean-Evangéliste Zaepfell † | Dambach | Bishop of Liège, Belgium |
| 4 Dec | 47.3 | Ordained Bishop | Cayetano Gil Taboada † | Bishop of Lugo, Spain | Archbishop of Santiago de Compostela, Spain |
| 7 Dec | 84.7 | Appointed | Aleksander Mikolaj Horain † | Titular Bishop of Hirina | Bishop Emeritus of Samogizia o Tels (Zmudz), Lithuania |
| 84.7 | Resigned | Aleksander Mikolaj Horain † | Bishop of Samogizia o Tels (Zmudz), Lithuania | Bishop Emeritus |
| 11 Dec | | Died | Adeodato Summantico † | Bishop of San Severo, Italy |
| 19 Dec | 87.8 | Appointed | Francisco Ignacio Añoa Busto † | Bishop of Pamplona, Spain | Archbishop of Zaragoza, Spain |
| 8.4 | Appointed | Luis Antonio Jaime de Borbón y Farnesio † | Cardinal-Deacon of S. Maria della Scala | |
| 8.4 | Elevated to Cardinal | Luis Antonio Jaime de Borbón y Farnesio † | |
| 34.0 | Confirmed | Jean-Gaspard-Gilbert de Chabannas † | Bishop of Agen, France |
| 45.0 | Confirmed | François-Barthélemi de Salignac de La Mothe-Fénelon † | Bishop of Pamiers, France |
| 25 Dec | 71.4 | Died | Francisco Dionisio de Villavicencio, O.S.A. † | Bishop of León en Nicaragua |