| Date | Age | Bishop | Title |
| unknown | | Anton Manicir † | Auxiliary Bishop of Gurk, Austria |
| unknown | | Francisco de Vitoria, O.P. † | Bishop of Córdoba (Tucumán), Argentina |
| 1 Jan | | Juan Manual Martínez de Manzanillo, O.P. † | Bishop of Coro, Venezuela |
| 6 Jan | 44.0 | Juan Hurtado de Mendoza † | Cardinal, Cardinal-Priest of Santa Maria in Traspontina |
| 29 Jan | | Horatius Sanminiato † | Archbishop of Chieti, Italy |
| 7 Feb | 64.1 | Girolamo della Rovere † | Cardinal, Archbishop of Torino {Turin}, Italy |
| 17 Feb | | François de Wallon-Capelle † | Bishop of Namur {Namen}, Belgium |
| 21 Feb | | Girolamo Mannelli † | Bishop of Nocera Umbra, Italy |
| 26 Feb | | Giovanni Goffredo Ginod † | Bishop of Aosta, Italy |
| 27 Feb | | Marcantonio Venier † | Archbishop of Zadar (Zara), Croatia |
| 29 Feb | | Giovanni Battista Santorio † | Bishop of Tricarico, Italy |
| 5 Mar | 55.2 | Gerolamo Ragazzoni † | Bishop of Bergamo, Italy |
| 5 Mar | 46.3 | Hermann von Schaumberg † | Former Bishop-Elect of Minden, Germany |
| 24 Mar | | Mariano de Racciaccaris, O.F.M. † | Bishop of L’Aquila, Italy |
| 2 May | | Alvise Baroccia † | Archbishop of Zadar (Zara), Croatia |
| 7 May | | Marcantonio Gonzaga † | Bishop of Casale Monferrato, Italy |
| Jun | | Jacques du Plessis de Richelieu † | Bishop of Luçon, France |
| 25 Jun | | Alfonso de la Cerda, O.P. † | Bishop of Coro, Venezuela |
| 25 Jun | | Alfonso de Lacerda, O.P. † | Bishop of La Plata o Charcas, Bolivia |
| 3 Jul | | Giulio Ricci † | Bishop of Teramo, Italy |
| 9 Jul | | Juan Corrionero † | Bishop of Catania, Italy |
| 14 Jul | 58.5 | Antonio Puteo (del Pozzo) † | Archbishop of Bari (-Canosa), Italy |
| 2 Aug | | Domenico Grimaldi † | Archbishop of Avignon, France |
| 25 Aug | 48.6 | Andrés Cabrera Bobadilla † | Archbishop of Zaragoza, Spain |
| 2 Sep | | Giulio Masetti † | Bishop of Reggio Emilia, Italy |
| 9 Sep | 68.4 | Pietro Fauno Costacciaro † | Bishop of Vigevano, Italy |
| 26 Sep | | Scipione Floccaro † | Archbishop of Rossano, Italy |
| 11 Oct | 58.7 | St. Alessandro Maria Sauli, B. † | Bishop of Pavia, Italy |
| 22 Oct | | Clément Graebbels (Crabeels) † | Bishop of ’s Hertogenbosch (Bois-le-Duc), Netherlands |
| Nov | 96.8 | Diego de Medellín, O.F.M. † | Bishop of Santiago de Chile |
| 14 Nov | 73.9 | Francisco Trujillo García † | Bishop of León, Spain |
| 19 Nov | | Pietro Martire Ponzone † | Bishop of Novara, Italy |
| 27 Nov | 68.9 | Giulio Canani † | Cardinal, Bishop of Modena, Italy |
| 11 Dec | 63.9 | Gregorio de Montalvo Olivera, O.P. † | Bishop of Cuzco, Peru |
| 13 Dec | 65.9 | Philippe de Lénoncourt † | Cardinal, Bishop Emeritus of Auxerre, France |
| 17 Dec | 69.7 | Vincenzo Lauro † | Cardinal, Bishop Emeritus of Mondovi, Italy |
| 28 Dec | 97.0 | Gaspare Ricciullo del Fosso, O.M. † | Archbishop of Reggio Calabria, Italy |