| Date | Age | Event | Bishop | Title | Current Title |
| unknown | 42.3 | Resigned | Niccolò Albergati-Ludovisi † | Archbishop of Bologna, Italy | Cardinal, Archbishop Emeritus |
| Born | Édouard Bargedé † | Corbigny | Bishop of Nevers, France |
| Born | Cyprien-Gabriel Bénard de Résay † | Paris | Bishop of Angoulême, France |
| Born | Francesco Bonesana, C.R. † | Mediolanen | Bishop of Como, Italy |
| 66.2 | Selected | Jean-Pierre Camus † | Bishop of Arras, France | Bishop Emeritus of Belley, France |
| Died | Lodovico (Francesco) Centofiorini † | Bishop of Nicotera, Italy |
| 51.9 | Appointed | Fabio Chigi † | Secretary of the Secretariat of State | Pope (Roma {Rome}, Italy) |
| 67.0 | Died | Tommaso d’Aquino, C.R. † | Bishop of Mottola (Motula), Italy |
| Resigned | Roger d’Aumont † | Bishop of Avranches, France | Bishop Emeritus |
| Died | Alphonse d’Elbène † | Bishop Emeritus of Albi, France |
| 53.8 | Appointed | Juan Alonso y Ocón † | Archbishop of La Plata o Charcas, Bolivia |
| Born | Manuel Plácido de Quirós de Porras, O.S.B. † | Tineo Oviedo, Spain | Bishop of Antequera, Oaxaca, México |
| 33.0 | Ordained Bishop | Rinaldo d’Este † | Bishop of Reggio Emilia, Italy | Cardinal, Cardinal-Bishop of Palestrina |
| Born | Jean d’Estrées † | Paris | Bishop of Laon, France |
| Born | Francisco Antonio de la Portilla, O.F.M. † | Véjoris | Bishop of Mallorca, Spain |
| Died | Giovanni Dolfin † | Bishop Emeritus of Belluno, Italy |
| Born | Emmanuel da Silva Frances † | Lisbon | Auxiliary Bishop of Lisboa {Lisbon}, Portugal |
| Born | François Hébert † | Tours | Bishop of Agen, France |
| Appointed | Ladislas Jonnart † | Bishop of Arras, France | Archbishop of Cambrai, France |
| Born | Martin de La Cassaigne † | Lescar | Bishop of Lescar, France |
| Died | René Leclerc † | Bishop of Glandèves, France |
| 54.0 | Died | Cherubino Manzoni, O.F.M. † | Bishop of Termoli, Italy |
| Born | Antonio Felice Marsili † | Bononien | Bishop of Perugia, Italy |
| Born | Juan Antonio Muñoz Salcedo, O.S.H. † | Santisteban del Puerto | Bishop of Mondoñedo, Spain |
| Died | Bernardino Rodríguez de Arriaga, O.S.A. † | Bishop of Guadix, Spain |
| 46.4 | Appointed | François de Rouxel de Médavy † | Bishop of Sées, France | Archbishop of Rouen, France |
| Died | Gonzalo de Rueda † | Bishop of Gallipoli, Italy |
| 30.0 | Appointed | Denis Sanguin de Livry † | Bishop of Senlis, France |
| Appointed | Henri de Savoie-Nemours † | Archbishop of Reims, France | Archbishop Emeritus |
| 70.0 | Resigned | Francisco Sánchez Villanueva y Vega † | Bishop of Islas Canarias {Canary Islands}, Spain | Bishop Emeritus |
| 21.0 | Ordained Priest | Johannes Schmitzberger, O.S.B. † | Priest of Order of Saint Benedict | Auxiliary Bishop of Wien, Austria |
| Born | Blas Serrate † | La Almolda | Bishop of Tarazona, Spain |
| Died | Piotr Sokołowski † | Auxiliary Bishop of Chelmno (Culma, Kulm), Poland |
| Born | Andrés Soto de la Fuente † | Sevilla | Bishop of Osma, Spain |
| Died | Talento de’ Talenti † | Bishop of Montepulciano, Italy |
| 46.0 | Appointed | Mátyás Tarnóczy † | Bishop of Vác, Hungary |
| Born | Felipe Ignacio Trujillo y Guerrero † | Cádiz, Spain | Bishop of Michoacán, México |
| 56.0 | Died | Ambrosio Viola, O.P. † | Bishop of Lacedonia, Italy |
| 5 Jan | 45.0 | Selected | Gabriel de Boislève † | Bishop of Avranches, France |
| 7 Jan | 51.0 | Died | Sallustio Pecólo (Pecoli) † | Bishop Emeritus of Venosa, Italy |
| 8 Jan | | Ordained Bishop | Francesco Maria Falcucci † | Bishop of Calvi Risorta, Italy |
| 19 Jan | | Born | Johannes Wolfgang von Bodman † | Bodman | Auxiliary Bishop of Konstanz {Constance}, Germany |
| 25 Jan | | Born | Ortensio Visconti † | Milan | Bishop of Lodi, Italy |
| 29 Jan | 37.1 | Ordained Bishop | Kazimierz Florian Czartoryski † | Bishop of Poznań, Poland | Archbishop of Gniezno, Poland |
| 39.7 | Ordained Bishop | Bl. Benedetto Odescalchi † | Bishop of Novara, Italy | Pope (Roma {Rome}, Italy) |
| Feb | | Born | Giorgio Barni † | Lauden | Bishop of Piacenza, Italy |
| Born | Emanuele Cicatelli † | S. Anthimi | Bishop of Avellino e Frigento, Italy |
| 5 Feb | 25.2 | Ordained Priest | Joannes Gregorius Ardizzoni † | Priest | Bishop of Ajaccio, France |
| Born | Franz Ferdinand von Kuenburg † | Mossa | Archbishop of Praha {Prague}, Czech Republic |
| 12 Feb | | Born | Andrea (Antonius) Bottado (Botado), O.S.A. † | Ameixoeira | Auxiliary Bishop of Braga, Portugal |
| Died | Pablo Durán † | Bishop of Urgell, Spain |
| 13 Feb | 45.1 | Appointed | Anne de Lévis-Ventadour † | Archbishop of Bourges, France |
| Appointed | Jean de Lingendes † | Bishop of Mâcon, France |
| 15 Feb | | Born | Francesco Antonio Giattini † | Montis Fani | Bishop Emeritus of Jesi, Italy |
| 17 Feb | | Born | Andrea Ariani † | Napoli | Bishop of Andria, Italy |
| 19 Feb | 62.1 | Ordained Bishop | Nicolás de la Torre Muñoz † | Bishop of Santiago de Cuba | Bishop of Santiago de Cuba |
| 27 Feb | 42.2 | Appointed | Christophoro d’Authier de Sisgau, O.S.B. † | Titular Bishop of Bethleem |
| 41.2 | Appointed | Matteo Benlich, O.F.M. † | Bishop of Beograd {Belgrade}, Serbia |
| 44.2 | Appointed | Andrea Bogdani (Bogadano) † | Archbishop of Achrida (Ochrida), Bulgaria | Archbishop Emeritus of Skopje, Macedonia |
| 52.2 | Appointed | Filippo Casoni † | Bishop of Borgo San Donnino, Italy |
| Appointed | Franjo Soimirovic (Svimirovich), O.F.M. † | Bishop of Prizren, Serbia | Archbishop of Achrida (Ochrida), Bulgaria |
| Appointed | François de Visdelou † | Coadjutor Bishop of Quimper, France | Bishop of Saint-Pol-de-Léon, France |
| Appointed | François de Visdelou † | Titular Bishop of Madaurus | Bishop of Saint-Pol-de-Léon, France |
| Mar | | Born | Sebastiano Pompilio Bonaventura † | Urbinaten | Bishop of Corneto (Tarquinia) e Montefiascone, Italy |
| 63.2 | Died | Fabrizio Carafa † | Bishop of Bitonto, Italy |
| 6 Mar | 38.3 | Selected | François Faure † | Bishop of Glandèves, France | Bishop of Amiens, France |
| 7 Mar | 34.2 | Professed | Grégoire Lo(u) Wen-tsao (López), O.P. † | Member of Order of Friars Preachers | Bishop of Nanking [Nanjing], China |
| 12 Mar | 52.2 | Ordained Bishop | Filippo Casoni † | Bishop of Borgo San Donnino, Italy |
| 17 Mar | 65.2 | Died | Giovanni Battista Vercellino † | Bishop of Aosta, Italy |
| 20 Mar | 40.4 | Appointed | Ludwik Stempkowski † | Coadjutor Bishop of Kamyanets-Podilskyi (Kamieniec), Ukraine | Bishop |
| 26 Mar | 42.2 | Ordained Bishop | Christophoro d’Authier de Sisgau, O.S.B. † | Titular Bishop of Bethleem |
| 54.6 | Ordained Bishop | Sebastian Denich † | Titular Bishop of Halmiros | Auxiliary Bishop of Regensburg, Germany |
| 30 Mar | | Born | Aleksander Mikolaj Horain † | Lysków | Bishop of Žemaičiai (Samogizia o Tels; Żmudź), Lithuania |
| 31.1 | Selected | Henri-Marie de Laval de Bois-Dauphin † | Bishop of Saint-Pol-de-Léon, France | Bishop of La Rochelle, France |
| 40.4 | Appointed | Ludwik Stempkowski † | Titular Bishop of Heliopolis in Augustamnica | Bishop of Kamyanets-Podilskyi (Kamieniec), Ukraine |
| Apr | | Died | Jean de Plantavit de la Pause † | Bishop Emeritus of Lodève, France |
| 2 Apr | | Born | Fabrizio Paolucci † | Forli | Cardinal, Secretary of the Secretariat of State |
| 5 Apr | 56.3 | Died | Timoteo Pérez Vargas, O.C.D. † | Bishop Emeritus of Ispahan, Iran |
| 8 Apr | 62.3 | Died | Léonor d’Estampes de Valançay, O.S.B. † | Archbishop of Reims, France |
| 23.0 | Ordained Priest | Giovanni Battista Desio † | Priest | Bishop of Venosa, Italy |
| 25.3 | Ordained Priest | Antonio Molinari † | Priest | Bishop of Lettere (-Gragnano), Italy |
| 15 Apr | | Born | Maximilian Heinrich von Weichs zu Rösberg † | Bonn | Auxiliary Bishop of Hildesheim, Germany |
| 18 Apr | 52.3 | Installed | Filippo Casoni † | Bishop of Borgo San Donnino, Italy |
| 29 Apr | | Born | Giuseppe Renato Imperiali † | Oria, Italy | Cardinal, Cardinal-Priest of San Lorenzo in Lucina |
| 30 Apr | 45.3 | Ordained Bishop | Anne de Lévis-Ventadour † | Archbishop of Bourges, France |
| May | 65.3 | Resigned | François de Harlay de Champvallon † | Archbishop of Rouen, France | Archbishop Emeritus |
| 1 May | 56.8 | Ordained Bishop | Beat Albrecht von Ramstein † | Bishop of Basel, Switzerland |
| 7 May | | Born | Giuseppe Archinto † | Milan | Cardinal, Archbishop of Milano {Milan}, Italy |
| 39.3 | Appointed | Maciej Marian Kurski, O.F.M. † | Bishop of Bacău, Romania | Auxiliary Bishop of Poznań, Poland |
| 8 May | 49.9 | Confirmed | Dietrich Adolf von der Reck † | Bishop of Paderborn, Germany |
| 10 May | | Born | Edme Bélot, M.E.P. † | Avallon, France | Vicar Apostolic of Western Tonking {Tonkino Occidentale}, Viet Nam |
| 21 May | | Ordained Bishop | Franjo Soimirovic (Svimirovich), O.F.M. † | Bishop of Prizren, Serbia | Archbishop of Achrida (Ochrida), Bulgaria |
| 22 May | 48.4 | Appointed | Fabrizio Campana, O.S.B. † | Archbishop of Conza, Italy |
| 48.3 | Appointed | Ercole Coppola † | Bishop of Nicotera, Italy |
| 44.6 | Confirmed | Christoph Bernhard von Galen † | Bishop of Münster, Germany |
| 23 May | 25.8 | Selected | François de Harlay de Champvallon † | Archbishop of Rouen, France | Archbishop of Paris, France |
| 27 May | | Born | Louis-Antoine de Noailles † | Cros-de-Montvert | Cardinal, Archbishop of Paris, France |
| 28 May | | Ordained Bishop | Rodrigo Cárdenas, O.P. † | Bishop of Nueva Segovia, Philippines |
| 30 May | | Died | Luis Venegas Figueroa † | Bishop of Almería, Spain |
| Jun | | Born | Giambattista Isnardi de Castello † | Taurinen | Bishop of Mondovi, Italy |
| Born | Michele Petirro † | Taverna | Bishop of Pozzuoli, Italy |
| 9 Jun | 38.6 | Confirmed | François Faure † | Bishop of Glandèves, France | Bishop of Amiens, France |
| 16 Jun | | Born | André-Daniel de Beaupoil de Saint-Aulaire † | Limousin | Bishop Emeritus of Tulle, France |
| 18 Jun | 61.1 | Died | Francisco Rodríguez de Valcárcel † | Bishop of Cartagena, Colombia |
| 19 Jun | 31.3 | Confirmed | Henri-Marie de Laval de Bois-Dauphin † | Bishop of Saint-Pol-de-Léon, France | Bishop of La Rochelle, France |
| 30 Jun | 53.5 | Died | Michael Chumer (Chumberg), O.F.M. † | Auxiliary Bishop of Ljubljana, Slovenia |