| Date | Age | Bishop | Title |
|---|
| unknown | | Gregorio Francisco de Campos † | Bishop of La Paz, Bolivia |
| unknown | | Pellegrino Consalvi † | Bishop of Fano, Italy |
| unknown | | James Keefe † | Bishop of Kildare and Leighlin, Ireland |
| unknown | 66.0 | Pierre Peineau du Verdier, C.O. † | Bishop of Acci and Mariana, France |
| unknown | | Philip Phillips † | Archbishop of Tuam, Ireland |
| 6 Feb | 46.8 | Jacques-Joseph-François de Vogüé † | Bishop of Dijon, France |
| 15 Feb | 75.3 | Anton Ignaz Reichsgraf von Fugger-Glött † | Bishop of Regensburg, Germany |
| 6 Mar | 57.5 | Antonio María de los Reyes Almada, O.F.M. † | Bishop of Sonora, Sonora, México |
| 14 Mar | 65.8 | Antonio Andrés López Arroyo, O.F.M. † | Bishop of Astorga, Spain |
| 1 Jul | 63.5 | François-Fiacre de Grave † | Bishop of Valence, France |
| 7 Jul | 75.1 | Pedro Cortez y Larraz † | Bishop Emeritus of Tortosa, Spain |
| 26 Jul | 54.9 | Eustache Federl † | Vicar Apostolic of Malabar, India |
| 1 Aug | 90.8 | St. Alfonso Maria de' Liguori † | Bishop Emeritus of Sant’Agata de’ Goti, Italy |
| 2 Sep | 70.3 | Antonio Jorge y Galván † | Archbishop of Granada, Spain |
| 23 Sep | 67.7 | Georges-Louis Phélypeaux d'Herbault † | Archbishop of Bourges, France |
| 7 Oct | 68.3 | Karl Johann Reichsgraf von Herberstein † | Bishop of Ljubljana, Slovenia |
| 17 Oct | 66.3 | Franz Xaver Reichsfreiherr von Adelmann von Adelmannsfelden † | Auxiliary Bishop of Augsburg, Germany |
| 11 Nov | | Anthony Blake † | Archbishop of Armagh, Ireland |
| Dec | 69.2 | Baltasar Yusta Navarro † | Bishop of Córdoba, Spain |
| 15 Dec | 59.2 | Basilio Tomás Sancho Hernando (de Santas Justa y Rufina), Sch. P. † | Archbishop of Manila, Philippines |
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