| Date | Age | Event | Bishop | Title | Current Title |
| unknown | 43.7 | Ordained Bishop | José Fernández del Toro † | Bishop of Oviedo, Spain | Bishop Emeritus |
| 27.6 | Ordained Priest | Leopold Anton Eleutherius von Firmian † | Priest of Salzburg, Austria | Archbishop |
| Died | Orazio Fortunato † | Bishop of Nardò, Italy |
| Born | Claude-Antoine-François-Jacquemet Gaultier d'Ancyse † | Bourges | Bishop of Luçon, France |
| Born | Meletius Kovács † | | Auxiliary Bishop of Oradea Mare {Gran Varadino, Nagyvárad}, Romania |
| Died | Domenico Lucchetti † | Bishop of Marsico Nuovo, Italy |
| Died | Dominic Maguire, O.P. † | Archbishop of Armagh, Ireland |
| Appointed | Ennemond Alleman de Montmartin † | Bishop of Grenoble, France |
| Born | Mathias Poncet de la Rivière † | Paris | Bishop Emeritus of Troyes, France |
| Born | Diego Rodríguez de Rivas y Velasco † | Riobamba | Bishop of Guadalajara, Jalisco, México |
| Died | Agnello Rossi † | Bishop of Potenza, Italy |
| 46.0 | Appointed | Pierre de Baglion de la Salle de Saillant † | Bishop of Mende, France |
| 26.5 | Ordained Priest | Adriano Sermattei † | Priest | Bishop of Viterbo e Tuscania, Italy |
| Died | Mikołaj Stanisław Święcicki † | Bishop of Poznań, Poland |
| 2 Jan | 39.0 | Ordained Bishop | François Berger de Malissoles † | Bishop of Gap, France |
| 17 Jan | | Born | Prospero Colonna di Sciarra † | Rome | Cardinal, Cardinal-Deacon of S. Agata de’ Goti |
| 20 Jan | 75.2 | Died | Leopold Karl von Kollonitsch Lipót † | Cardinal, Archbishop of Esztergom, Hungary |
| 40.3 | Succeeded | Christian August von Sachsen-Zeitz † | Cardinal, Archbishop of Esztergom, Hungary |
| 23 Jan | 46.9 | Ordained Bishop | Antoine de Charpin de Genetines † | Bishop of Limoges, France | Bishop Emeritus |
| 2 Feb | 52.5 | Ordained Bishop | Agostino Steffani † | Titular Bishop of the unknown of Titular See | Vicar Apostolic of Upper and Lower Saxony (Hanover), Germany |
| 9 Feb | | Appointed | Adam Daemen † | Vicar Apostolic of Foreign Vicariate |
| Appointed | Adam Daemen † | Titular Bishop of Hadrianopolis in Haemimonto | Vicar Apostolic of Foreign Vicariate |
| 16 Feb | | Born | Wilhelm Anton Freiherr von der Asseburg zu Hinnenburg † | Hinnenburg | Bishop of Paderborn, Germany |
| 17 Feb | 65.1 | Died | Giambattista Rubini † | Cardinal, Bishop Emeritus of Vicenza, Italy |
| 20 Feb | 38.2 | Ordained Bishop | Felicjan Konstanty Szaniawski † | Bishop of Włocławek, Poland | Bishop of Kraków, Poland |
| 21 Feb | 29.4 | Appointed | Laszlo Adam Erdody † | Bishop of Nitra, Slovakia |
| 47.1 | Appointed | François-Gaspard de La Mer de Matha † | Bishop of Aire, France |
| 22 Feb | | Appointed | Domingos Barata † | Bishop of Portalegre, Portugal |
| 83.1 | Died | Gabriel de Roquette † | Bishop Emeritus of Autun, France | Bishop |
| 23 Feb | | Born | Juan Sáenz de Bururaga † | Barricano | Archbishop of Zaragoza, Spain |
| 27 Feb | 55.5 | Ordained Bishop | Manuel Alvares da Costa † | Bishop of Olinda, Brazil | Bishop of Angra, Portugal |
| 4 Mar | | Born | Andrés Cano Junquera † | Villanueva de los Caballeros | Auxiliary Bishop of Sigüenza, Spain |
| 43.9 | Appointed | José Fernández del Toro † | Bishop of Oviedo, Spain | Bishop Emeritus |
| 10 Mar | | Born | Nicola Molinari, O.F.M. Cap. † | Lagonegro | Bishop Emeritus of Ravello, Italy |
| 15 Mar | | Appointed | Ambrose O'Madden † | Bishop of Kilmacduagh, Ireland | Bishop of Clonfert, Ireland |
| Appointed | Thaddeus Francis O'Rourke, O.F.M. † | Bishop of Killala, Ireland |
| 21 Mar | 42.2 | Appointed | Pedro de la Concepcion Urtiaga, O.F.M. † | Bishop of Puerto Rico (Porto Rico) |
| 54.0 | Appointed | Egidio Quinto † | Bishop of Sapë, Albania | Archbishop of Bar (Antivari), Montenegro |
| 47.2 | Installed | Orazio Filippo Spada † | Cardinal-Priest of S. Onofrio | Cardinal, Bishop of Osimo, Italy |
| 31 Mar | | Appointed | Edmund Byrne † | Archbishop of Dublin, Ireland |
| 47.2 | Appointed | Hugh MacMahon (McMahon) † | Bishop of Clogher, Ireland | Archbishop of Armagh, Ireland |
| Appointed | Ambrose MacDermott, O.P. † | Bishop of Elphin, Ireland |
| Apr | | Ordained Bishop | Ambrose MacDermott, O.P. † | Bishop of Elphin, Ireland |
| 3 Apr | 36.5 | Ordained Bishop | Tomás de Almeida † | Bishop of Lamego, Portugal | Cardinal, Patriarch of Lisboa, Portugal |
| 10 Apr | 72.3 | Ordained Bishop | Juan González Santiago † | Bishop of Cuzco, Peru |
| 47.3 | Ordained Bishop | François-Gaspard de La Mer de Matha † | Bishop of Aire, France |
| 11 Apr | 56.3 | Appointed | Juan Arteaga Dicastillo † | Bishop of Orense, Spain |
| 64.1 | Appointed | Callisto Lodigeri, O.S.M. † | Bishop of Montepulciano, Italy |
| 42.7 | Appointed | Fabio Mancinforte † | Bishop of Gubbio, Italy | Bishop Emeritus |
| 36.3 | Appointed | Giuseppe Maria Perrimezzi, O.M. † | Bishop of Ravello, Italy | Bishop Emeritus of Oppido Mamertina, Italy |
| 46.0 | Appointed | François-Hyacinthe de Ploeuc de Timeur † | Bishop of Quimper, France |
| 52.4 | Confirmed | Pierre de Sabatier † | Bishop of Amiens, France |
| 45.3 | Ordained Bishop | Giovanni Matteo Vitelloni † | Bishop of Catanzaro, Italy |
| 17 Apr | 53.4 | Appointed | Nicola Centomani † | Bishop of Monopoli, Italy |
| 18 Apr | 59.3 | Died | Louis-Marcel de Coëtlogon-Méjusseaume † | Bishop of Tournai {Doornik}, Belgium |
| 23 Apr | 42.4 | Appointed | Réné-François Beauvau de Rivau † | Bishop of Tournai, Belgium | Archbishop of Narbonne, France |
| Appointed | André Dreuilhet (Drouillet) † | Bishop of Bayonne, France |
| 30 Apr | | Appointed | Hugh MacDermot † | Bishop of Achonry, Ireland |
| 1 May | 35.4 | Ordained Bishop | Joseph Clemens von Bayern von Wittelsbach † | Archbishop of Köln {Cologne}, Germany |
| 2 May | 61.6 | Ordained Bishop | Dionisio Resino (Rezino) y Ormachea † | Titular Bishop of Adramyttium | Auxiliary Bishop of Santiago de Cuba |
| 6 May | 66.3 | Died | Franz Christoph Rinck von Balderstein † | Auxiliary Bishop of Eichstätt, Germany |
| 15 May | 52.5 | Ordained Bishop | Pierre de Sabatier † | Bishop of Amiens, France |
| 24 May | 54.5 | Installed | Diego Camacho y Ávila † | Bishop of Guadalajara, Jalisco, México |
| 93.7 | Died | Henri Albert de La Grange d'Arquien † | Cardinal, Cardinal-Deacon of S. Nicola in Carcere |
| 29 May | | Ordained Bishop | Angelo Gabriele Gautieri, O.F.M. † | Titular Bishop of the unknown of Titular See | Vicar Apostolic of Transilvania, Erdély, Siebenbürgen, Romania |
| Jun | 56.5 | Ordained Bishop | Juan Arteaga Dicastillo † | Bishop of Orense, Spain |
| 7 Jun | 64.4 | Appointed | Manuel de Santo Tomás Mendoza, O.P. † | Bishop of Almería, Spain | Bishop of Málaga, Spain |
| 8 Jun | 47.4 | Appointed | François-Marie Abbati † | Bishop of Rieti, Italy | Bishop of Carpentras, France |
| 41.7 | Installed | Francesco Acquaviva d’Aragona † | Cardinal-Priest of S. Bartolomeo all’Isola | Cardinal, Cardinal-Bishop of Sabina |
| 36.0 | Appointed | Lorenzo Altieri † | Cardinal-Deacon of S. Nicola in Carcere | Cardinal, Cardinal-Deacon of S. Maria in Via Lata |
| 49.1 | Appointed | Franz Arnold Reichsfreiherr von Wolf-Metternich zur Gracht † | Bishop of Münster, Germany | Bishop of Paderborn, Germany |
| 18 Jun | 24.2 | Ordained Priest | Georg Xaver Marotti † | Priest of Pedena, Austria | Bishop |
| 19 Jun | 46.2 | Ordained Bishop | François-Hyacinthe de Ploeuc de Timeur † | Bishop of Quimper, France |
| 26 Jun | 54.2 | Ordained Bishop | Egidio Quinto † | Bishop of Sapë, Albania | Archbishop of Bar (Antivari), Montenegro |
| 29 Jun | 57.4 | Ordained Bishop | Francisco del Rincón, O.M. † | Archbishop of Santo Domingo, Dominican Republic | Archbishop of Santafé en Nueva Granada, Colombia |
| 1 Jul | | Born | Francisco José Rodríguez Chico † | Nava del Rey | Bishop of Teruel, Spain |
| 3 Jul | | Born | Pedro Jacinto Valente, O. do Cristo † | Evora, Portugal | Bishop of Santiago de Cabo Verde |
| 6 Jul | 74.4 | Died | Pierre de Montenbach † | Bishop of Lausanne, Switzerland |
| 12 Jul | | Born | Juan Bautista Cervera, O.F.M. † | Gata de Gorgos | Bishop of Cádiz, Spain |
| 22 Jul | | Born | Joaquín de Eleta, O.F.M. † | Burgo de Osma | Bishop of Osma, Spain |
| 1 Aug | 58.8 | Appointed | Giuseppe Placido De Pace † | Bishop of Oppido Mamertina, Italy |
| 65.9 | Appointed | Jacques Duding † | Bishop of Lausanne, Switzerland |
| 51.6 | Appointed | François Gaspard de Grammont † | Auxiliary Bishop of Besançon, France |
| 51.6 | Appointed | François Gaspard de Grammont † | Titular Bishop of Arethusa | Auxiliary Bishop of Besançon, France |
| 38.6 | Elevated to Cardinal | Charles Thomas Maillard de Tournon † | Cardinal, |
| 64.6 | Appointed | Manuel de Santo Tomás Mendoza, O.P. † | Bishop of Almería, Spain | Bishop of Málaga, Spain |
| 58.6 | Elevated to Cardinal | Giuseppe Vallemani † | Cardinal, Cardinal-Priest of S. Maria degli Angeli |
| 6 Aug | | Born | Carlo Parlati † | Napoli | Archbishop of Acerenza e Matera, Italy |
| 17 Aug | | Born | Antonio Maria Priuli † | Venice | Cardinal, Bishop of Padova {Padua}, Italy |
| 24 Aug | | Ordained Bishop | Thaddeus Francis O'Rourke, O.F.M. † | Bishop of Killala, Ireland |
| 28 Aug | | Born | Anton Peter Graf Przichowsky von Przichowitz † | Svojsin | Archbishop of Praha {Prague}, Czech Republic |
| 42.7 | Ordained Bishop | Luis Francisco Romero † | Bishop of Santiago de Chile | Archbishop of La Plata o Charcas, Bolivia |
| 31 Aug | | Ordained Bishop | Edmund Byrne † | Archbishop of Dublin, Ireland |
| 12 Sep | 25.7 | Ordained Priest | Michał Remigiusz Łaszewski † | Priest of Warmia, Poland | Auxiliary Bishop |
| 75.0 | Died | Étienne Le Camus † | Cardinal, Bishop of Grenoble, France |
| 15 Sep | 52.7 | Died | Andrea Sarnelli † | Bishop of Muro Lucano, Italy |
| 17 Sep | 56.8 | Died | Juan Arteaga Dicastillo † | Bishop of Orense, Spain |
| 28 Sep | | Born | Antoine Clériade de Choiseul-Beaupré † | Castle of Daillecourt | Cardinal, Archbishop of Besançon, France |
| 57.9 | Died | Johann Eustach Egolf Reichsfreiherr von Westernach † | Auxiliary Bishop of Augsburg, Germany |
| 6 Oct | | Born | Francesco d'Elci † | Siena | Cardinal, Cardinal-Deacon of S. Angelo in Pescheria |
| Born | Pascual López Estaún † | Santa Olaria | Bishop of Huesca, Spain |
| 16 Oct | 40.5 | Ordained Priest | Alessandro Aldobrandini † | Priest | Cardinal, Titular Archbishop of Rhodus |
| 7 Nov | 40.5 | Appointed | Alessandro Aldobrandini † | Cardinal, Titular Archbishop of Rhodus |
| 49.4 | Appointed | Pier Marcellino Corradini † | Titular Archbishop of Atene | Cardinal, Bishop of Frascati, Italy |
| 43.8 | Appointed | Francisco Valero Losa † | Bishop of Badajoz, Spain | Archbishop of Toledo, Spain |
| 12 Nov | | Born | Emmerich Joseph Reichsfreiherr von Breidbach zu Bürresheim † | Koblenz | Archbishop of Mainz, Germany |
| 22 Nov | | Born | Johann Franz Anton Reichsgraf von Khevenhüller † | Klagenfurt | Bishop Emeritus of Wiener Neustadt, Austria |
| 27 Nov | 40.6 | Ordained Bishop | Alessandro Aldobrandini † | Cardinal, Titular Archbishop of Rhodus |
| 49.5 | Ordained Bishop | Pier Marcellino Corradini † | Titular Archbishop of Atene | Cardinal, Bishop of Frascati, Italy |
| 28 Nov | 46.4 | Appointed | Andrea Della Rocca, C.R.L. † | Bishop of Acci and Mariana, France |
| 44.9 | Appointed | José Patricio Navarro † | Bishop of Astorga, Spain |
| 48.4 | Appointed | Antonio San Felice † | Bishop of Nardò, Italy |
| 59.0 | Installed | Giuseppe Vallemani † | Cardinal, Cardinal-Priest of S. Maria degli Angeli |
| 4 Dec | 48.4 | Ordained Bishop | Antonio San Felice † | Bishop of Nardò, Italy |
| 24.2 | Ordained Priest | Ernst Friedrich Reichsfreiherr von Twickel † | Priest of Hildesheim, Germany | Auxiliary Bishop |
| 10 Dec | 52.8 | Died | Jacques-Nicolas de Colbert † | Archbishop of Rouen, France |
| 11 Dec | 51.9 | Ordained Bishop | François Gaspard de Grammont † | Titular Bishop of Arethusa | Auxiliary Bishop of Besançon, France |
| 12 Dec | 72.9 | Died | Juan González Santiago † | Bishop of Cuzco, Peru |
| 13 Dec | 77.9 | Died | François-Placide de Baudry de Piancourt, O.S.B. † | Bishop of Mende, France |
| 16 Dec | | Born | Andrés Pérez Bermúdez, O.F.M. † | Acebo | Bishop of Jaca, Spain |
| 19 Dec | 58.0 | Appointed | Giovanni Innocenzo Carussio † | Bishop of Muro Lucano, Italy |
| 24 Dec | 73.0 | Died | Gabriel de Saint-Estève † | Bishop of (Saint-Lizier de) Couserans, France |
| 25 Dec | 37.0 | Appointed | Charles-François de Châteauneuf de Rochebonne † | Bishop of Noyon, France | Archbishop of Lyon, France |
| Ordained Bishop | Adam Daemen † | Titular Bishop of Hadrianopolis in Haemimonto | Vicar Apostolic of Foreign Vicariate |
| 49.5 | Appointed | Claude-Maur d'Aubigné † | Archbishop of Rouen, France |