| Date | Age | Bishop | Title |
| unknown | 65.0 | Giulio Cesare Bergera † | Archbishop of Torino {Turin}, Italy |
| unknown | 64.0 | Tiburzio Bollini, O.S.B. † | Bishop of Isernia, Italy |
| unknown | | Giovanni Battista Brescia † | Bishop of Vicenza, Italy |
| unknown | | Francisco de Godoy † | Bishop of Trujillo, Peru |
| unknown | | Francisco Gabaldá, O.S.H. † | Bishop of Segorbe, Spain |
| unknown | | Girolamo Lanfranchi † | Bishop of Cava (de’ Tirreni), Italy |
| unknown | | Francesco Lombardi † | Bishop of Veroli, Italy |
| unknown | | Georgius Pauli-Stravius † | Auxiliary Bishop of Köln {Cologne}, Germany |
| 2 Jan | 76.0 | Paolo Squillanti † | Bishop of Teano, Italy |
| Feb | 46.1 | Giorgio Giorgicci † | Bishop of Krk (Veglia), Croatia |
| 8 Feb | 54.1 | Charles-Auguste de Sales † | Bishop of Genčve {Geneva}, Switzerland |
| 19 Feb | 62.7 | Thomas Henrici † | Auxiliary Bishop of Basel, Switzerland |
| 26 Feb | | Bernhard von Schrattenbach, O. Cist. † | Prefect of Meißen (Meissen) {Lusazia o Lausitz; Sassonia}, Germany |
| 5 Mar | | Francisco Pio Guadalupe Tellez † | Archbishop of Santo Domingo, Dominican Republic |
| 16 Apr | 56.3 | Bartolomeo Cresconi † | Bishop of Caserta, Italy |
| 27 Apr | 60.3 | Martin Saudrius von Sternfeld † | Prefect Emeritus of Meißen (Meissen) {Lusazia o Lausitz; Sassonia}, Germany |
| May | | Ascanio Ugolini † | Bishop of Muro Lucano, Italy |
| Jun | 64.4 | Benedek Kisdy † | Bishop of Eger, Hungary |
| 25 Jun | 67.7 | Gregorio Panzani, C.O. † | Bishop of Mileto, Italy |
| Jul | | Marco Antonio Gussio † | Bishop of Catania, Italy |
| 12 Jul | 80.5 | Alonso de San Vítores y Fransarcén, O.S.B. † | Bishop of Zamora, Spain |
| Aug | 45.6 | Antonio Ricciulli † | Bishop of Umbriatico (Umbriaticum), Italy |
| 16 Aug | 75.7 | Juan del Pozo Horta, O.P. † | Bishop of Segovia, Spain |
| 18 Aug | 70.6 | Benedetto Geraci † | Bishop of Lipari, Italy |
| 20 Aug | 76.7 | Juan de Lugo y de Quiroga, S.J. † | Cardinal, Cardinal-Priest of Santa Balbina |
| 25 Aug | 62.6 | Henri de Baradat † | Bishop of Noyon, France |
| 14 Sep | | Marianus Maravich, O.F.M. † | Bishop of Bosnia, Croatia |
| 15 Sep | 60.7 | Alessandro Porro, C.R. † | Bishop of Bobbio, Italy |
| 30 Sep | 43.7 | Cristoforo Vidman † | Cardinal, Cardinal-Priest of San Marco |
| 1 Oct | | Nicolás de Madrid, O.S.H. † | Bishop of Osma, Spain |
| 13 Oct | 61.8 | Pedro de Reina Maldonado † | Bishop-Elect of Santiago de Cuba |
| 20 Nov | 45.9 | Giuseppe (Francisco Maria) Sanfelice † | Archbishop of Cosenza, Italy |
| 6 Dec | 48.9 | Vincenzo Costaguti † | Cardinal, Cardinal-Priest of San Callisto |
| 21 Dec | 73.0 | Dominique de Vic † | Archbishop of Auch, France |