| Date | Age | Bishop | Title |
| unknown | | Juan Francisco Gómez Calleja † | Bishop of Cartagena, Colombia |
| unknown | 55.8 | Franciscus Josephus Vernich † | Bishop of Sirmio (Srijem; Sirmium), Croatia |
| unknown | 71.0 | Baltazar Wilksycki † | Auxiliary Bishop of Poznań, Poland |
| 13 Jan | 65.1 | Bernardino Guinigi † | Archbishop of Lucca, Italy |
| 13 Jan | 78.0 | Martin de La Cassaigne † | Bishop of Lescar, France |
| 19 Jan | 74.8 | Lorenzo Cozza, O.F.M. † | Cardinal, Cardinal-Priest of Santa Maria in Ara Coeli |
| 20 Jan | 63.3 | Raimundo Rubí, O. Cart. † | Bishop of Catania, Italy |
| 30 Jan | 57.6 | Giovanni Battista Salerni, S.J. † | Cardinal, Cardinal-Priest of Santo Stefano al Monte Celio |
| 30 Jan | 73.3 | Lothar Franz von Schönborn † | Archbishop of Mainz, Germany |
| 2 Feb | 67.0 | Pedro Francisco Levanto Vivaldo † | Bishop of Badajoz, Spain |
| 19 Feb | | Karol Piotr Pancerzyński † | Bishop of Vilnius, Lithuania |
| 14 Mar | 84.1 | Carlo Giuseppe Morozzo, O. Cist. † | Bishop of Saluzzo, Italy |
| 25 Mar | 55.8 | Christoph Franz von Hutten † | Bishop of Würzburg, Germany |
| 25 Mar | 71.0 | Giuseppe Migliaccio † | Archbishop of Messina, Italy |
| 29 Mar | 80.2 | Jerónimo Nosti de Valdés, O.S.Bas. † | Bishop of Santiago de Cuba |
| 30 Mar | 78.8 | Giuseppe Guerra † | Bishop Emeritus of Alatri, Italy |
| 4 Apr | 63.3 | Francesco Maria Pitoni † | Titular Bishop of Himeria |
| 20 Apr | 66.1 | Gioacchino Francesco Caprini (Carpi) † | Bishop of Bitetto, France |
| 20 Apr | 82.3 | Silvestre García Escalona † | Bishop of Salamanca, Spain |
| 4 May | 77.9 | Louis-Antoine de Noailles † | Cardinal, Archbishop of Paris, France |
| 6 May | 60.3 | Pablo Vilana Perlas † | Archbishop of Salerno, Italy |
| 31 May | 74.9 | Gregorio Selleri, O.P. † | Cardinal, Cardinal-Priest of Sant’Agostino |
| 11 Jun | 76.3 | José Gasch (Casch), O.M. † | Archbishop of Palermo, Italy |
| 26 Jun | 63.5 | Louis Philippe d’Auneau de Visé † | Auxiliary Bishop of Strasbourg, France |
| 30 Jun | 59.2 | Gaetano Maria Bargagli, O.S.B. † | Bishop of Chiusi, Italy |
| 8 Jul | 44.5 | Anne-François-Guillaume du Cambout-Beçay † | Bishop of Tarbes, France |
| 22 Jul | 51.4 | Giovanni Bortone † | Titular Bishop of Diospolis in Thracia |
| Aug | 59.3 | Antonio Bianchi di Gennaro, O.F.M. † | Bishop of Mottola (Motula), Italy |
| Aug | 62.6 | Salvatore di Aloisio † | Bishop of Termoli, Italy |
| Aug | 60.9 | Vincenzio Lessio † | Bishop of Krk (Veglia), Croatia |
| 4 Aug | 75.6 | Anselmo de la Peña, O.S.B. † | Bishop of Agrigento (Girgenti), Italy |
| 12 Aug | 67.2 | Flaminio Dondi, O.F.M. † | Bishop of Montefeltro, Italy |
| 21 Aug | 63.6 | Juan Gómez de Neva y Frías † | Bishop of Quito, Ecuador |
| Sep | 83.7 | Giuseppe Maria Bottari, O.F.M. Conv. † | Bishop of Pula (Pola), Croatia |
| Sep | 65.0 | Michelangelo Gentili † | Bishop of Belcastro, Italy |
| 5 Oct | 43.8 | Manuel José de Hendaya y Haro † | Bishop of Oviedo, Spain |
| 12 Oct | 64.8 | Juan Fernández Zapata † | Bishop of León, Spain |
| 26 Oct | 59.8 | Zozuno Valignari † | Titular Archbishop of Thessalonica |
| Nov | 74.0 | Costantino Giordani, O.C.D. † | Archbishop of Sassari, Italy |
| 5 Nov | 83.6 | Domenico Diez de Aux † | Bishop of Gerace, Italy |
| 13 Nov | 51.9 | Carlos Bermudez de Castro † | Archbishop of Manila, Philippines |
| 19 Nov | 68.6 | Paolo Stabile, O.M. † | Bishop of Bova, Italy |
| 25 Nov | 60.3 | Johann Matthias von Eyss † | Auxiliary Bishop of Trier, Germany |
| 25 Nov | 67.5 | László Nádasdy, O.S.Pauli † | Bishop of Csanád, Hungary |
| Dec | 66.8 | Marino Carmignano † | Bishop of Cava (de’ Tirreni), Italy |
| 1 Dec | 58.7 | Pier Secondo Radicati de Cocconato † | Bishop of Osimo e Cingoli, Italy |
| 2 Dec | 60.3 | Tommaso Di Grazia † | Bishop of Castellammare di Stabia, Italy |
| 10 Dec | 43.5 | Karl Joseph von Kuenburg † | Bishop of Chiemsee, Germany |
| 16 Dec | 65.3 | Pedro de Fajardo (Guajardo), O.SS.T. † | Bishop of Buenos Aires, Argentina |
| 28 Dec | 84.0 | Jan Franciszek Kurdwanowski, S.J. † | Auxiliary Bishop of Warmia (Ermland), Poland |
| 30 Dec | 76.8 | Johann Sigmund Zeller von und zu Leibersdorf † | Auxiliary Bishop of Freising, Germany |
| 31 Dec | | Louis-Joseph de Châteauneuf de Rochebonne † | Bishop of Carcassonne, France |