| Date | Age | Bishop | Title |
| unknown | 80.0 | Antonio del Aguila Vela y Paz † | Bishop of Zamora, Spain |
| unknown | | Girolamo Beccadelli Bologna † | Bishop of Siracusa, Italy |
| unknown | | Giambatista Borgia † | Bishop of Massa Lubrense, Italy |
| unknown | | Angelo Bragadin, O.P. † | Bishop of Vicenza, Italy |
| unknown | | Giacomo Antonio Carrozza † | Bishop of Conversano, Italy |
| unknown | | Leonello Cibo (Cybo) † | Bishop Emeritus of Penne e Atri, Italy |
| unknown | | Francesco Colonna † | Archbishop of Taranto, Italy |
| unknown | | Pablo de Torres, O.P. † | Bishop of Panamá |
| unknown | | Giacomo Antonio Ferduzi, O.F.M. Conv. † | Bishop of Martirano (Martoranum), Italy |
| unknown | | Antonio Filonardi † | Bishop of Veroli, Italy |
| unknown | | Rostaing de La Baume de Suze, O. Cist. † | Bishop of Orange, France |
| unknown | | Sébastien di Montfalcon (Montfaucon) † | Bishop of Lausanne, Switzerland |
| unknown | | Ferdinando Pandolfini † | Bishop of Troia, Italy |
| unknown | | Silverio Petrucci † | Bishop of Muro Lucano, Italy |
| unknown | | Caesar Podocathor † | Archbishop of Nicosia, Cyprus |
| unknown | | Dionisio de Robertis † | Archbishop of Manfredonia, Italy |
| unknown | | Marco Quinto Vigerio della Rovere † | Bishop Emeritus of Senigallia, Italy |
| 12 Jan | | John White † | Bishop of Winchester, England, Great Britain |
| 26 Jan | | Feliks Ligęza † | Archbishop of Lviv, Ukraine |
| 16 Feb | 68.1 | Jean du Bellay † | Cardinal, Bishop Emeritus of Paris, France |
| 17 Feb | | Antoine Olivier † | Bishop of Lombez, France |
| 5 Mar | 71.7 | Pedro Pacheco de Villena (Ladrón de Guevara) † | Cardinal, Bishop of Sigüenza, Spain |
| 6 Mar | | Joannes Monichusen † | Bishop of Ösell (Oesell) [Saare-Lääne], Estonia |
| 28 Apr | | Diego Tavera Ponce de Léon † | Bishop of Jaén, Spain |
| 15 May | | Francisco de Santa María Benavides Velasco, O.S.H. † | Bishop of Segovia, Spain |
| 25 May | | Andrzej Zebrzydowski † | Bishop of Kraków, Poland |
| 26 May | | Étienne Martel de Bacqueville † | Bishop of Coutances, France |
| 21 Jun | 36.5 | Rudolf von Frankenstein † | Bishop of Speyer, Germany |
| 1 Jul | | Jean Doc, O.S.B. † | Bishop of Laon, France |
| 4 Jul | 66.5 | Eberhard von Hirnheim † | Bishop of Eichstätt, Germany |
| 16 Jul | | Agostino Lippomano † | Bishop of Verona, Italy |
| 27 Jul | | Georg Waldeisen † | Auxiliary Bishop of Regensburg, Germany |
| 12 Aug | 68.6 | Diomede Carafa † | Cardinal, Bishop of Ariano, Italy |
| 17 Aug | 59.6 | Braccio Martelli † | Bishop of Lecce, Italy |
| 23 Sep | | Juan García Pérez y Oliván † | Bishop of Urgell, Spain |
| 30 Sep | 51.7 | Melchor Cano, O.P. † | Bishop Emeritus of Islas Canarias {Canary Islands}, Spain |
| 8 Nov | | Gerolamo de Caro † | Archbishop Emeritus of Nazareth |
| 17 Nov | 46.1 | Michael von Kuenburg † | Archbishop of Salzburg, Austria |
| 4 Dec | 78.9 | Jean Bertrand † | Cardinal, Bishop Emeritus of (Saint-Bernard de) Comminges, France |
| 7 Dec | 60.5 | Ernst von Bayern † | Apostolic Administrator of Passau, Germany |