| Date | Age | Bishop | Title |
| unknown | | Bonaventura Blasio † | Bishop of Castellaneta, Italy |
| unknown | | Francesco Castello † | Bishop of Lettere-Gragnano, Italy |
| unknown | | Alessandro Dolfi † | Bishop of Fano, Italy |
| unknown | | Luke Fagan † | Archbishop of Dublin, Ireland |
| unknown | 64.5 | Nuno Álvares Pereira de Melo † | Bishop of Lamego, Portugal |
| unknown | | Jan Feliks Szaniawski † | Bishop of Chelm, Poland |
| 10 Jan | 81.4 | Manuel Alvares da Costa † | Bishop of Angra, Portugal |
| 20 Jan | 78.2 | Pierre de Sabatier † | Bishop of Amiens, France |
| 16 Feb | 53.1 | Juan Antonio de Lardizabal y Elorza † | Bishop of Tlaxcala, Tlaxcala, México |
| 28 Feb | | Giovanni Battista Lomellino † | Bishop of Salzburg, Austria |
| 2 Mar | | Bernardo Serrada, O.C. † | Bishop of Cuzco, Peru |
| 30 Mar | 61.1 | Luis Simões Brandão † | Bishop Emeritus of Angola e Congo, Angola |
| 9 Apr | 65.6 | Bartolomeu do Pilar, O. Carm. † | Bishop of Belém do Pará, Brazil |
| 10 Apr | 77.2 | Daniel Joseph Mayer † | Archbishop of Praha {Prague}, Czech Republic |
| 11 Apr | 70.0 | José Fernández del Toro † | Bishop Emeritus of Oviedo, Spain |
| 18 Apr | 63.3 | Louis de La Vergne-Montenard de Tressan † | Archbishop of Rouen, France |
| 23 Apr | 45.1 | Thomaz Franciszek Czapski, O. Cist. † | Bishop of Chelmno (Culma), Poland |
| 4 May | 61.5 | Pedro Espinosa de los Monteros, O.F.M. † | Bishop of Jaca, Spain |
| 2 Jun | 56.0 | Johann Adam Reichsgraf von Wratislaw von Mitrowitz † | Bishop of Litomĕrice, Czech Republic |
| 20 Jun | 64.7 | Caspar Adolph Schnernauer † | Auxiliary Bishop of Mainz, Germany |
| 30 Jun | 79.2 | John Wallace † | Coadjutor Vicar Apostolic of Lowland District, Scotland, Great Britain |
| 10 Jul | 74.5 | Jacinto Olivera y Pardo † | Bishop of Chiapas (Ciudad Real de Chiapas), Chiapas, México |
| 13 Jul | 65.0 | Juan Ignacio de Castorena y Ursúa y Goyeneche † | Bishop of Yucatán (Mérida), Yucatán, México |
| 8 Aug | 70.3 | Carlos Borja Centellas y Ponce de León † | Cardinal, Patriarch of West Indies, Spain |
| 31 Oct | 64.0 | Gaetano Iovone † | Bishop of Alife, Italy |
| 31 Oct | | Juan Lancaster (or Alencaster) Norona † | Bishop of Cuenca, Spain |
| 2 Nov | | Pierre de Pardaillan de Gondrin d'Autin † | Bishop of Langres, France |