| Date | Age | Bishop | Title |
|---|
| unknown | | Walter Blake † | Bishop of Achonry, Ireland |
| unknown | 54.3 | Antonio Nogueira † | Bishop of São Tomé e Príncipe |
| unknown | | Nathan O’Donnell † | Bishop of Raphoe, Ireland |
| unknown | | Michael O’Reilly † | Archbishop of Armagh, Ireland |
| 30 Jan | 55.9 | Luigi Mattei † | Cardinal, Cardinal-Priest of Santa Maria in Ara Coeli |
| 5 Feb | 60.0 | Ferdinand Julius von Troyer † | Cardinal, Bishop of Olomouc (Olmütz), Czech Republic |
| 19 Feb | 68.0 | Ludovico Agnello Anastasio † | Archbishop of Sorrento, Italy |
| 2 Mar | 77.5 | Pierre-Guérin de Tencin † | Cardinal, Archbishop of Lyon, France |
| 2 Mar | 55.2 | Raimondo Quesada † | Bishop of Bosa, Italy |
| 31 Mar | 60.4 | Nicola Cioffi † | Archbishop of Amalfi, Italy |
| 7 Apr | 74.4 | Pedro González García † | Bishop of Avila, Spain |
| 30 Apr | | James Bernard Dunne † | Bishop of Ossory, Ireland |
| 3 May | 83.1 | Prospero Lorenzo Lambertini † | Pope (Roma {Rome}, Italy) |
| 3 May | 71.2 | Callisto Maria (Vincenzo Antonio) Palombella † | Bishop of Terracina, Priverno e Sezze, Italy |
| 14 May | 59.0 | Bernardino Antonio Diego Bernardi, O.M. † | Bishop of Martirano (Martoranum), Italy |
| 30 May | 56.3 | François de Crussol d’Uzès † | Archbishop of Toulouse, France |
| Jun | 46.7 | Giulio Cesare Gandolfi † | Archbishop of Cagliari, Italy |
| 21 Jun | 77.6 | Jean de Vaugirault † | Bishop of Angers, France |
| 24 Jun | 83.2 | Giuseppe Caccia, O.F.M. † | Bishop Emeritus of Trogir (Traù), Croatia |
| 5 Jul | 62.3 | Dominique (Wilhelm Philipp) Gentis, O.P. † | Bishop of Antwerpen {Antwerp, Anvers}, Belgium |
| 9 Jul | 71.5 | José Manuel da Cámara d’Atalaia † | Cardinal, Patriarch of Lisboa {Lisbon}, Portugal |
| 27 Jul | 37.3 | Segherio Felice Seghieri † | Bishop of Sovana (Soana), Italy |
| 29 Jul | 54.0 | Ignazio della Chiesa † | Bishop of Casale Monferrato, Italy |
| Aug | 75.9 | Paul-Loup de Salières de Fosseran † | Bishop of Vaison, France |
| 21 Aug | 77.6 | Camillo Olivieri † | Bishop of Gravina (di Puglia), Italy |
| 29 Aug | 61.0 | Joseph-Hubert de Boccard † | Bishop of Lausanne, Switzerland |
| 1 Sep | 71.6 | Bernardo Bernardi, O.F.M. Conv. † | Bishop of Acquapendente, Italy |
| 7 Sep | 75.8 | Giuseppe Stella † | Bishop of Mazara del Vallo, Italy |
| 7 Sep | 72.5 | Dominikus Anton von Thun † | Bishop of Trento, Italy |
| 19 Sep | 56.4 | Wojciech Stanisław Leski, O. Cist. † | Bishop of Chelmno (Culma, Kulm), Poland |
| 29 Sep | 59.9 | Cristoforo Lugaresi † | Bishop of Comacchio, Italy |
| 30 Sep | 59.9 | Alberico Archinto † | Cardinal, Cardinal-Priest of San Lorenzo in Damaso |
| 9 Oct | 70.2 | Juan Elías Gómez Terán † | Bishop of Orihuela, Spain |
| 24 Oct | 71.0 | Luigi Antonio Valdina Cremona † | Titular Bishop of Hermopolis Maior |
| 27 Oct | 63.8 | Giuseppe Nicolai † | Archbishop of Conza, Italy |
| 28 Oct | 79.1 | Aloysius Foscari † | Patriarch of Venezia {Venice}, Italy |
| 1 Nov | 65.8 | Guillaume-Samuel de Verthamon de Chavagnac † | Bishop of Luçon, France |
| 4 Nov | 69.2 | Carlo Maria Sacripante † | Cardinal, Cardinal-Bishop of Frascati |
| 11 Nov | 72.3 | Bernardino Centurione † | Bishop of Ajaccio, France |
| 16 Dec | 63.0 | Andrzej Stanisław Załuski † | Bishop of Kraków, Poland |
| 17 Dec | 73.8 | Casimiro Rossi † | Archbishop of Salerno, Italy |
| 17 Dec | 60.2 | Giovanni Battista Stella † | Bishop of Rimini, Italy |
| 22 Dec | 86.4 | Benjamin Petre, O.S.B. † | Vicar Apostolic of London District, England, Great Britain |
| 23 Dec | 71.0 | Clemente Argenvilliers † | Cardinal, Prefect of the Congregation of the Council |
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