| Date | Age | Bishop | Title |
| unknown | | Angelo Altieri † | Bishop of Nepi e Sutri, Italy |
| unknown | | Fernando de Atienza, O.F.M. † | Bishop of Guadix, Spain |
| unknown | | Guglielmo Belloni (Bellomo) † | Bishop of Catania, Italy |
| unknown | | Giovanni Stefano Botticelli † | Bishop of Cremona, Italy |
| unknown | | Stefano Ghillini, O.P. † | Bishop of Bobbio, Italy |
| unknown | | Etienne Hugonet † | Bishop of Mâcon, France |
| unknown | | Pietro Mattei † | Bishop of Sant’Agata de’ Goti, Italy |
| unknown | | Johann Merchteren, O.F.M. † | Titular Bishop of Libariensis |
| unknown | | Thomas Susa † | Archbishop of Tarentaise (Moûtiers-en-Tarentaise), France |
| 4 Jan | | Bartolomeo Aglioni † | Bishop of Todi, Italy |
| 12 Jan | | Dietrick Stechow, O. Praem. † | Bishop of Brandenburg, Germany |
| 7 Feb | | Ludovico Antoniis † | Bishop of Terni, Italy |
| 28 Feb | | Maur de Valleville (Malleville) † | Bishop of Maguelonne, France |
| 4 Apr | | Antonio Severini † | Bishop of Gubbio, Italy |
| 15 Apr | | Nicolaus Miroballo † | Archbishop of Amalfi, Italy |
| 1 May | 86.3 | Guillaume Chartier † | Bishop of Paris, France |
| 17 May | | Walter Le Hert † | Bishop of Norwich, England, Great Britain |
| 15 Jun | 83.5 | Sigismund Pirchan von Rosenberg, O. Cist. † | Auxiliary Bishop of Passau, Germany |
| 11 Aug | 64.6 | János Vitéz (Zredna) † | Archbishop of Esztergom, Hungary |
| 28 Aug | | Gerard (Bastet) de Crussol † | Titular Patriarch of Antiochia {Antioch} |
| 18 Nov | 69.9 | Basilios Bessarion, O.S.B.M. † | Cardinal, Titular Archbishop of Thebae |