| Date | Age | Bishop | Title |
|---|
| unknown | | Eugenio Cattaneo, B. † | Bishop of Telese o Cerreto Sannita, Italy |
| unknown | | Jérôme Centelles † | Bishop of Cavaillon, France |
| unknown | | Matthias Drašković † | Bishop of Knin (Tinin), Croatia |
| unknown | | Eusebe (Joseph) † | Bishop of Salmas {Shahpour} (Chaldean), Iran |
| unknown | | Alexander Filarete † | Bishop of Umbriatico (Umbriaticum), Italy |
| unknown | 59.0 | Eugenio Fucci † | Bishop of Veroli, Italy |
| unknown | | Scipione Gesualdo † | Archbishop of Conza, Italy |
| unknown | | Francesco Liparuli (Liparolo) † | Bishop of Capri, Italy |
| unknown | | Fausto Malari (Molari, Mellari) † | Bishop of Chiusi, Italy |
| unknown | 48.0 | Antonio Valente, O.P. † | Bishop of São Tomé e Príncipe |
| unknown | | György Zalatnaki † | Bishop of Pécs, Hungary |
| Jan | 50.0 | Fabrizio Perugini † | Bishop of Terracina, Priverno e Sezze, Italy |
| 19 Jan | 60.0 | Bernard Maciejowski † | Cardinal, Archbishop of Gniezno, Poland |
| 5 Feb | | Louis Grimaldi de Beuil † | Bishop Emeritus of Vence, France |
| 5 Feb | | Blasius Laubich † | Auxiliary Bishop of Passau, Germany |
| 8 Feb | 70.1 | Alphonse d’Elbène † | Bishop of Albi, France |
| Mar | | Youssef Rizzi el-Bkoufani † | Patriarch of Antiochia {Antioch} (Maronite), Lebanon |
| 7 Mar | | René Benoit † | Former Bishop-Elect of Troyes, France |
| 7 Mar | 68.1 | Arnoldus Nijlen (Nylen), O.P. † | Former Bishop-Elect of Groningen, Netherlands |
| 27 Mar | 68.2 | Vicente Roca de la Serna † | Bishop of Albarracin, Spain |
| Apr | 60.2 | Antonio de Santo Estevão, O.P. † | Bishop of Angola e Congo |
| 18 Apr | 65.9 | Jakob Christoph Blarer von Wartensee † | Bishop of Basel, Switzerland |
| 25 Apr | 55.6 | Jan von Sitsch † | Bishop of Wrocław (Breslau), Poland |
| 17 May | 48.1 | Ascanio Colonna † | Cardinal, Cardinal-Bishop of Palestrina |
| 8 Jun | 53.4 | Juan Bautista Acevedo Muñoz † | Bishop Emeritus of Valladolid, Spain |
| 9 Jun | 57.3 | István Szuhay † | Archbishop of Kalocsa, Hungary |
| 11 Jun | 82.7 | François-Marie Tarugi, C.O. † | Cardinal, Archbishop Emeritus of Siena, Italy |
| 14 Jun | | Pedro Brandão, O. Carm. † | Bishop of Santiago de Cabo Verde |
| 5 Jul | | Diego Haëdo † | Archbishop of Palermo, Italy |
| Aug | 42.5 | Giacomo Candido † | Bishop of Lacedonia, Italy |
| Aug | 50.5 | Modesto Gavazzi, O.F.M. Conv. † | Bishop of Alife, Italy |
| 2 Aug | 75.4 | Fernando Suárez de Figueroa † | Bishop of Zamora, Spain |
| 5 Aug | | Jean de Tulles † | Bishop of Orange, France |
| 12 Aug | 65.6 | Jan Gniazdowski, O. Cist. † | Auxiliary Bishop of Gniezno, Poland |
| Sep | 54.6 | Giulio Calvo d’Albeto † | Bishop of Sora, Italy |
| Sep | 63.6 | Ilario Cortesi, C.R. † | Bishop of Policastro, Italy |
| 2 Sep | 62.6 | Jerónimo Xavierre, O.P. † | Cardinal, Priest of Order of Friars Preachers |
| 11 Sep | 37.9 | Alexandre de Bragança † | Archbishop of Évora, Portugal |
| 12 Sep | | Flaminio Filonardi † | Bishop of Aquino, Italy |
| 19 Sep | 56.7 | Alfonso Visconte, C.O. † | Cardinal, Bishop of Spoleto, Italy |
| 29 Sep | | Carlo Carafa † | Bishop of Boiano, Italy |
| 13 Oct | 43.0 | Gregorio (Pompilio) Servanzi, O.P. † | Bishop Emeritus of Trevico, Italy |
| 15 Oct | 64.7 | Pedro de Agurto, O.S.A. † | Bishop of Cebu, Philippines |
| 21 Oct | 47.8 | Valentin Mohr, O.S.B. † | Auxiliary Bishop of Mainz, Germany |
| 19 Nov | 76.8 | Antonio Agelli, C.R. † | Bishop Emeritus of Acerno, Italy |
| 19 Nov | | Péter Radovits † | Bishop of Vác, Hungary |
| 24 Nov | 72.8 | Giovanni Battista Giorgi, O.S.B. † | Bishop of Stagno (Ston), Croatia |
| 26 Nov | 64.2 | Luís de Figueiredo e Lemos † | Bishop of Funchal, Portugal |
| 27 Nov | | Nuno de Noronha † | Bishop of Guarda, Portugal |
| 4 Dec | 48.9 | Tommaso Monti, C.R. † | Bishop of Crotone (Cotrone), Italy |
| 5 Dec | 54.9 | Sebastiano Aroldi, O.F.M. Obs. † | Bishop of Rethymo (Calamona), Greece |
| 10 Dec | 61.9 | Nicolas de Villars † | Bishop of Agen, France |
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