| Date | Age | Bishop | Title |
| unknown | | Jerónimo Barreto † | Bishop of Faro {Algarve}, Portugal |
| unknown | | Pietro Bembo † | Bishop of Krk (Veglia), Croatia |
| unknown | | Felice Bertodano † | Bishop of Mondovi, Italy |
| unknown | | Diego de León, O. Carm. † | Auxiliary Bishop of Manfredonia, Italy |
| unknown | | Luca Spingaroli, O.P. † | Bishop of Šibenik (Knin), Croatia |
| unknown | | Aurelio Zibramonti † | Bishop of Casale Monferrato, Italy |
| unknown | | Lelio (Aurelio) Zimbramonti (Gibramontis) † | Bishop of Casale Monferrato, Italy |
| 2 Jan | 68.0 | Stefano Bonucci † | Cardinal, Bishop of Arezzo, Italy |
| 5 Jan | 62.0 | Joannes Hauchin † | Archbishop of Mechelen, Belgium |
| 30 Jan | | Bartolomé Molina † | Bishop of Tui, Spain |
| 31 Jan | | Hector Wegmann † | Auxiliary Bishop of Passau, Germany |
| 2 Mar | 68.4 | Alessandro Farnese (Jr.) † | Cardinal, Cardinal-Bishop of Ostia (e Velletri) |
| 15 Apr | | Paolo del Grasso † | Bishop of Cefalonia e Zante, Greece |
| 24 Apr | | Marco Antonio Marsilio † | Archbishop of Salerno, Italy |
| 13 May | 60.9 | Julius von Braunschweig-Lüneburg † | Former Bishop-Elect of Minden, Germany |
| 6 Jul | | Christoph Schlattl † | Bishop of Chiemsee, Germany |
| 9 Aug | 64.2 | Urban Trennbach † | Bishop of Passau, Germany |
| Sep | | Thomas Cammerota (Malatesta), O.P. † | Bishop of Vieste, Italy |
| 29 Sep | 69.7 | Donald McGonagle (MacGongail) † | Bishop of Raphoe, Ireland |
| 2 Oct | 75.0 | Prospero Publicola Santacroce † | Cardinal, Bishop of Albano, Italy |
| Nov | | Albert de Thill † | Bishop of Deventer, Netherlands |
| 4 Dec | 69.9 | Bernardino Gómez Miedes † | Bishop of Albarracin, Spain |
| 6 Dec | | Michael Dornvogel † | Auxiliary Bishop Emeritus of Augsburg, Germany |
| 30 Dec | | Juan Bautista Cardona † | Bishop of Tortosa, Spain |