| Date | Age | Event | Bishop | Title | Current Title |
| unknown | 74.2 | Resigned | Jean Antoine Blavier, O.F.M. Conv. † | Auxiliary Bishop of Ličge, Belgium | Auxiliary Bishop Emeritus |
| Born | Claude de Chabannes (Cabannes) † | Aquen | Bishop of Gap, France |
| Born | Hardouin de Chaslon de Maisonnoble † | Bazas | Bishop of Lescar, France |
| Born | Mateo de Zamora y Penagos, O.F.M. † | Bogotá, Colombia | Bishop of Yucatán (Mérida), México |
| 15.9 | Professed | Domenico Maria de Liguori (Liguoro), C.R. † | Member of Congregation of Clerics Regular | Bishop of Cava (de’ Tirreni), Italy |
| 22.3 | Ordained Priest | Hieronim Maciej Jełowicki † | Priest | Auxiliary Bishop of Lviv, Ukraine |
| Died | Kazimieras (Kazimierz) Pacas (Pac) † | Bishop of Žemaičiai (Samogizia o Tels; Żmudź), Lithuania |
| Jan | 53.0 | Ordained Bishop | Johann Peter Burmann † | Titular Bishop of Thermopylae | Auxiliary Bishop of Köln {Cologne}, Germany |
| 57.0 | Resigned | Francesco Maria Moles, C.R. † | Bishop of Nola, Italy | Bishop Emeritus |
| 73.0 | Died | James Phelan † | Bishop of Ossory, Ireland |
| 4 Jan | | Born | Joăo da Cruz Salgado de Castilho, O.C.D. † | Lisboa, Portugal | Bishop of Miranda (do Douro), Portugal |
| 9 Jan | | Born | Giuseppe Nicolai † | Altamura | Archbishop of Conza, Italy |
| 10 Jan | 45.0 | Appointed | Carlo Ottaviano Guasco † | Bishop of Alessandria (della Paglia), Italy | Bishop of Cremona, Italy |
| 57.5 | Appointed | Stjepan Seliščević † | Bishop of Zagreb (Agram), Croatia |
| 13 Jan | 30.5 | Ordained Deacon | Antal Ferenc von Pucheim † | Deacon | Bishop of Wiener Neustadt, Austria |
| 15 Jan | 69.6 | Resigned | Ludovico della Quadra † | Bishop of Mottola (Motula), Italy | Bishop Emeritus |
| 16 Jan | 61.4 | Died | Franciscus Maria Graffeo, O.F.M. Conv. † | Bishop of Mazara del Vallo, Italy |
| 45.0 | Ordained Bishop | Carlo Ottaviano Guasco † | Bishop of Alessandria (della Paglia), Italy | Bishop of Cremona, Italy |
| 30.5 | Ordained Priest | Antal Ferenc von Pucheim † | Priest | Bishop of Wiener Neustadt, Austria |
| 23 Jan | 51.1 | Died | Louis Habert de Montmort † | Bishop of Perpignan-Elne, France |
| 39.4 | Ordained Priest | Bartolomeo Porzio † | Priest | Bishop of Cariati e Cerenzia, Italy |
| 38.4 | Ordained Bishop | Léon Potier de Gesvres † | Archbishop of Bourges, France | Cardinal, Archbishop Emeritus |
| 24 Jan | 42.1 | Appointed | Giovanni Giuseppe Camuzzi † | Bishop of Orvieto, Italy |
| 47.9 | Appointed | Simeon Cavagnini † | Bishop of Trogir (Traů), Croatia |
| 36.4 | Appointed | Vincentius degl’Atti † | Bishop of Bagnoregio (Bagnorea), Italy | Bishop of Orvieto, Italy |
| 65.1 | Appointed | José González, O. de M. † | Bishop of Plasencia, Spain |
| 41.1 | Appointed | Pietro Alessandro Procaccini † | Bishop of Ripatransone, Italy | Bishop of Avellino e Frigento, Italy |
| 60.1 | Confirmed | Pietro de Torres † | Archbishop of Trani, Italy |
| 26 Jan | | Born | Jan Krasiński † | Pustelnicen | Auxiliary Bishop of Chełm, Poland |
| 27 Jan | | Born | Juan Ladrón de Guevara, O. Carm. † | Pedraza de la Sierra | Bishop of Barbastro, Spain |
| 84.1 | Died | Francisco López Urraca, O.S.A. † | Bishop of Barbastro, Spain |
| 28 Jan | 60.7 | Died | Jean de Gaillard de Longjumeau † | Bishop of Apt, France |
| 29 Jan | 45.3 | Selected | Johann Franz von Eckher von Kapfing und Liechteneck † | Bishop of Freising, Germany |
| 30 Jan | 47.9 | Ordained Bishop | Simeon Cavagnini † | Bishop of Trogir (Traů), Croatia |
| 36.4 | Ordained Bishop | Vincentius degl’Atti † | Bishop of Bagnoregio (Bagnorea), Italy | Bishop of Orvieto, Italy |
| 41.1 | Ordained Bishop | Pietro Alessandro Procaccini † | Bishop of Ripatransone, Italy | Bishop of Avellino e Frigento, Italy |
| 2 Feb | 61.1 | Died | Louis-Anne Aubert de Villeserin † | Bishop of Senez, France |
| 4 Feb | 43.5 | Selected | François de Salignac de La Mothe-Fénelon † | Archbishop of Cambrai, France |
| 6 Feb | 42.1 | Ordained Bishop | Giovanni Giuseppe Camuzzi † | Bishop of Orvieto, Italy |
| 7 Feb | 61.9 | Resigned | Marcello Durazzo † | Bishop of Spoleto, Italy | Cardinal, Bishop of Faenza, Italy |
| 55.1 | Appointed | Domenico Folgori † | Titular Archbishop of Nazareth |
| 50.3 | Appointed | Pietro Gaddi † | Bishop of Spoleto, Italy |
| 54.2 | Appointed | Giovanni Girolamo Naselli † | Bishop of Luni e Sarzana, Italy |
| 10 Feb | | Born | Armand-Jules de Rohan-Guémené † | Paris | Archbishop of Reims, France |
| 13 Feb | 26.5 | Ordained Priest | Carolus Antonius Donadoni, O.F.M. Conv. † | Priest of Order of Friars Minor Conventual | Bishop of Šibenik (Knin), Croatia |
| 15 Feb | | Born | Saverio Canale (Canali) † | Terni, Italy | Cardinal, Cardinal-Deacon of Santa Maria della Scala |
| 18 Feb | | Died | György Széchényi † | Archbishop of Esztergom, Hungary |
| 20 Feb | 65.1 | Died | Juan Cano Sandoval † | Bishop of Yucatán (Mérida), México |
| 24 Feb | | Born | Carolus Franciscus Casanova † | Pigna | Archbishop of Sassari, Italy |
| 26 Feb | 23.0 | Ordained Priest | Sostegno Maria Cavalli, O.S.M. † | Priest of Order of Friar Servants of Mary | Bishop of Gubbio, Italy |
| 27 Feb | 50.2 | Ordained Bishop | Thomas Joseph Nicolson † | Titular Bishop of Peristasis | Vicar Apostolic of Scotland, Great Britain |
| 6 Mar | 50.3 | Ordained Bishop | Pietro Gaddi † | Bishop of Spoleto, Italy |
| 12 Mar | 69.2 | Died | Christoph de Rojas y Spinola, O.F.M. † | Bishop of Wiener Neustadt, Austria |
| 14 Mar | | Born | Francesco De Novellis † | Napoli | Bishop of Sarno, Italy |
| 19 Mar | 55.2 | Ordained Bishop | Domenico Folgori † | Titular Archbishop of Nazareth |
| 23.0 | Ordained Priest | Niccolň Schiaffinati, O.S.A. † | Priest of Order of St. Augustine | Bishop of Ischia, Italy |
| 20 Mar | 57.7 | Ordained Bishop | Stjepan Seliščević † | Bishop of Zagreb (Agram), Croatia |
| 21 Mar | 39.7 | Resigned | Rinaldo d’Este † | Cardinal-Deacon of Santa Maria della Scala | |
| 48.5 | Appointed | Francisco Manuel de Zúńiga Sotomayor y Mendoza, O.S.A. † | Bishop of Ciudad Rodrigo, Spain |
| 27 Mar | | Born | Johann Philipp Anton von Franckenstein † | Forchheim | Bishop of Bamberg, Germany |
| 30 Mar | 60.6 | Died | Anselm Franz von Ingelheim † | Archbishop of Mainz, Germany |
| 39.5 | Succeeded | Lothar Franz von Schönborn † | Archbishop of Mainz, Germany |
| 2 Apr | 24.9 | Ordained Priest | Jean-Baptiste Surian † | Priest | Bishop of Vence, France |
| 22.9 | Ordained Priest | Julius Nicolaus Torno † | Priest | Titular Bishop of Arcadiopolis in Asia |
| 13 Apr | 48.8 | Died | Petrus Draghi Bartoli † | Titular Patriarch of Alexandria {Alessandria} |
| 16 Apr | | Born | Bernardo Rodrigues Nogueira † | Santa Marinha | Bishop of Săo Paulo, Brazil |
| 18 Apr | | Born | Federico Marcello Lante Montefeltro Della Rovere † | Rome, Italy | Cardinal, Cardinal-Bishop of Porto e Santa Rufina |
| 27 Apr | | Born | Ludovico Valenti † | Trevi | Cardinal, Bishop of Rimini, Italy |
| May | 52.3 | Died | Eleonoro Pacello † | Bishop of Pula (Pola), Croatia |
| 2 May | | Appointed | Gregorio Giuseppe Gaetani de Aragonia † | Titular Patriarch of Alexandria {Alessandria} |
| 39.3 | Appointed | Kazimierz Benedykt Lezeński, O. Cist. † | Auxiliary Bishop of Warmia (Ermland), Poland |
| 39.3 | Appointed | Kazimierz Benedykt Lezeński, O. Cist. † | Titular Bishop of Himeria | Auxiliary Bishop of Warmia (Ermland), Poland |
| 58.3 | Appointed | Pietro Luigi Malaspina, C.R. † | Bishop of Massa Marittima, Italy |
| 43.6 | Appointed | Giovanni Stefano Pastori † | Bishop of Ventimiglia, Italy |
| 48.2 | Appointed | Agnello Rossi, O. Carm. † | Bishop of Potenza, Italy |
| 3 May | | Born | Pacificus Bizza † | Arbe | Archbishop of Split (Spalato), Croatia |
| Born | Biagio Chiarelli † | Napoli | Bishop of Ravello e Scala, Italy |
| 8 May | 48.2 | Ordained Bishop | Agnello Rossi, O. Carm. † | Bishop of Potenza, Italy |
| 12 May | | Born | Krzysztof Michal Dobiński † | Proszowice | Auxiliary Bishop of Gniezno, Poland |
| 15 May | | Born | José Larumbe Mallí † | Lumbier | Bishop of Tui, Spain |
| 16 May | 50.4 | Appointed | Vincenzo della Marra, C.R.L. † | Bishop of Alessano, Italy |
| 60.4 | Appointed | Francisco Joaniz de Echalaz † | Bishop of Cartagena (en Espańa) |
| 76.3 | Appointed | Daniele Scoppa, O. Carm. † | Bishop of Nola, Italy |
| Appointed | Andrea Tontoli † | Bishop of Vieste, Italy |
| 19 May | | Born | Juan Manuel Rodríguez Castańón † | Lois | Bishop of Tui, Spain |
| 21 May | | Born | Salvator Angelo Cadello † | Cagliari | Bishop of Ampurias e Civita, Italy |
| Born | Giuseppe Gallarati † | Milano | Bishop Emeritus of Lodi, Italy |
| 23 May | 50.4 | Ordained Bishop | Vincenzo della Marra, C.R.L. † | Bishop of Alessano, Italy |
| 43.7 | Ordained Bishop | Giovanni Stefano Pastori † | Bishop of Ventimiglia, Italy |
| 76.3 | Ordained Bishop | Daniele Scoppa, O. Carm. † | Bishop of Nola, Italy |
| 28 May | 24.1 | Ordained Priest | Paolo de Mercurio † | Priest | Bishop of Giovinazzo e Terlizzi, Italy |
| 30 May | 54.5 | Appointed | Andreas Albinowski † | Auxiliary Bishop of Włocławek (Kujawy, Kalisze), Poland |
| 54.5 | Appointed | Andreas Albinowski † | Titular Bishop of Ordaea | Auxiliary Bishop of Włocławek (Kujawy, Kalisze), Poland |
| 57.4 | Appointed | Felipe Galindo Chávez y Pineda, O.P. † | Bishop of Guadalajara, Jalisco, México |
| 43.8 | Confirmed | François de Salignac de La Mothe-Fénelon † | Archbishop of Cambrai, France |
| 41.6 | Appointed | Asdrubale Termini † | Bishop of Siracusa, Italy |
| Jun | | Died | Domnii Gaudenzi † | Bishop of Arbe (Rab), Croatia |
| 2 Jun | 41.6 | Ordained Bishop | Asdrubale Termini † | Bishop of Siracusa, Italy |
| 12 Jun | 24.7 | Ordained Priest | Tomás de Almeida † | Priest | Cardinal, Patriarch of Lisboa {Lisbon}, Portugal |
| 26.5 | Ordained Priest | Charles Thomas Maillard de Tournon † | Priest | Cardinal, Titular Patriarch of Antiochia {Antioch} |
| 13 Jun | 40.1 | Appointed | Michelangelo dei Conti † | Titular Archbishop of Tarsus | Pope (Roma {Rome}, Italy) |
| 36.9 | Appointed | Alexander Sforza † | Titular Archbishop of Neocaesarea in Ponto |
| 16 Jun | 40.1 | Ordained Bishop | Michelangelo dei Conti † | Titular Archbishop of Tarsus | Pope (Roma {Rome}, Italy) |
| Born | Didacus Manola † | Spalaten | Bishop of Trogir (Traů), Croatia |
| Born | Giovanni Giacomo Millo † | Casale Monferrato, Italy | Cardinal, Prefect of the Congregation of the Council |
| 19 Jun | 36.9 | Ordained Bishop | Alexander Sforza † | Titular Archbishop of Neocaesarea in Ponto |
| 30 Jun | 61.5 | Died | Louis de Lascaris d’Urfé † | Bishop of Limoges, France |