| Date | Age | Bishop | Title |
| unknown | 66.0 | Tiburzio Bollini, O.S.B. † | Bishop of Isernia, Italy |
| unknown | | Franciscus Coccalini, O.S.H. † | Bishop of Trogir (Traů), Croatia |
| unknown | | Diego López de Vergara y Aguilar † | Bishop-Elect of Panamá |
| unknown | 51.0 | Pier Francesco Filonardi † | Bishop of Anagni, Italy |
| unknown | 58.0 | Francesco Gheri † | Bishop of Cervia, Italy |
| unknown | 59.0 | Giovanni Battista Gori Panellini † | Bishop of Grosseto, Italy |
| unknown | 72.0 | Mansueto Merati, B. † | Bishop of Acerra, Italy |
| unknown | | Martín Velasco y Molina † | Bishop of La Paz, Bolivia |
| 20 Jan | 53.0 | Girolamo della Rovere † | Bishop of Vercelli, Italy |
| 11 Feb | 74.1 | Melchor Maldonado y Saavedra, O.S.A. † | Bishop of Córdoba (Tucumán), Argentina |
| 16 Feb | 68.1 | Francesco Tello de León, O.SS.T. † | Bishop of L’Aquila, Italy |
| 11 Mar | 65.1 | Jean-Jacques Fauche de Domprel † | Archbishop of Besançon, France |
| 17 Mar | 56.2 | Anne de Lévis-Ventadour † | Archbishop of Bourges, France |
| 30 Mar | 69.2 | Giuseppe Corti † | Auxiliary Bishop of Praha {Prague}, Czechia |
| May | | Giovanni Battista Pontano (Montano) † | Bishop of Oppido Mamertina, Italy |
| 8 May | 76.3 | Fernando de Quesada † | Bishop of Cádiz, Spain |
| 25 May | 74.3 | Pierre de Villars (III) † | Archbishop of Vienne, France |
| 30 May | 60.6 | Francisco Crespín de Valldaura i Brizuela, O.P. † | Bishop of Vic, Spain |
| Jun | 67.4 | Francesco Antonio Sacchetti † | Bishop of Troia, Italy |
| 5 Jun | 62.4 | Jacques Dančs de Marly † | Bishop Emeritus of Toulon, France |
| 8 Jun | | Jean Louis Bertier † | Bishop Emeritus of Rieux, France |
| 29 Jun | 68.4 | Pierre de Marca † | Archbishop of Paris, France |
| 6 Jul | 74.5 | Robert Barry † | Bishop of Cork and Cloyne, Ireland |
| 8 Aug | 76.2 | Angelo Giori † | Cardinal, Cardinal-Priest of Santi Quirico e Giulitta |
| 11 Aug | 74.6 | Pietro Marioni † | Bishop Emeritus of Telese o Cerreto Sannita, Italy |
| 13 Aug | | Giacomo Filippo Bascapé (Bescapé) † | Bishop of Ascoli Satriano (Puglia), Italy |
| 16 Aug | 32.3 | Ignace Cotolendi, M.E.P. † | Vicar Apostolic of Nanking [Nanjing], China |
| 18 Aug | 57.6 | Pedro Gálvez † | Bishop of Zamora, Spain |
| 22 Aug | 57.6 | Juan de Paredes, C.R.S.A. † | Bishop of Gaeta, Italy |
| Sep | 57.6 | Giovanni de Torres † | Archbishop of Salerno, Italy |
| 4 Sep | 77.6 | Francisco Torres Grijalba, O.S.A. † | Bishop of Mondońedo, Spain |
| 7 Sep | 73.6 | Johann Sternenberg (de Dusseldorf) † | Auxiliary Bishop Emeritus of Münster, Germany |
| 13 Sep | 67.6 | Francesco Agostino della Chiesa † | Bishop of Saluzzo, Italy |
| Oct | 75.7 | Antonio Manunta † | Bishop of Ales e Terralba, Italy |
| 21 Oct | 73.8 | Martín de Bonilla Granada † | Bishop of Ávila, Spain |
| 22 Oct | 66.0 | Antonio Marenzi † | Bishop of Trieste, Italy |
| Nov | 34.8 | Gaspare Cattaneo † | Bishop of Pula (Pola), Croatia |
| Nov | 47.8 | Adamo Gentile † | Bishop of Lipari, Italy |
| 3 Nov | 67.8 | Bernardo de Hontiveros, O.S.B. † | Bishop of Calahorra y La Calzada, Spain |
| 11 Nov | 61.3 | Otto (Johann Theodor) von Senheim, O.P. † | Auxiliary Bishop of Trier, Germany |
| 21 Nov | 48.8 | Leopold Wilhelm von Österreich † | Bishop-Elect of Passau, Germany |
| Dec | 55.9 | Juan de la Torre y Castro, O.F.M. † | Bishop of Nicaragua |
| 5 Dec | 48.9 | Pierre Pingré † | Bishop of Toulon, France |
| 23 Dec | 52.9 | Giambattista Ventriglia † | Bishop of Caserta, Italy |
| 27 Dec | 77.1 | Juan Cebrián Pedro, O. de M. † | Archbishop of Zaragoza, Spain |