| Date | Age | Bishop | Title |
|---|
| unknown | | Tommaso Cervino, O.P. † | Bishop of Trebinje e Mrkan, Bosnia and Herzegovina |
| unknown | | Marcantonio della Croce † | Bishop Emeritus of Tivoli, Italy |
| unknown | | Joannes Domaniewski † | Bishop of Žemaičiai (Samogizia o Tels; Żmudź), Lithuania |
| unknown | 52.0 | Giulio Giovio † | Bishop Emeritus of Nocera de’ Pagani, Italy |
| unknown | | Borso Merli † | Bishop Emeritus of Bobbio, Italy |
| unknown | | Sante Sacco † | Bishop of Bisignano, Italy |
| unknown | | Pietro Sanna † | Archbishop of Oristano, Italy |
| unknown | | Brandelisio Trotti † | Bishop of Saint-Jean-de-Maurienne, France |
| unknown | | Juan del Valle † | Bishop of Popayán, Colombia |
| 2 Jan | 58.0 | Girolamo Foscari † | Bishop of Torcello (Turris), Italy |
| 4 Jan | | Philippe Nigri † | Bishop-Elect of Antwerpen {Antwerp, Anvers}, Belgium |
| 5 Jan | | Domingo Romeo, O.P. † | Auxiliary Bishop of Gerona, Spain |
| 4 Feb | | Wilhelm von Brandeburg † | Archbishop of Riga, Latvia |
| 20 Feb | 79.1 | Pedro Alvarez de Acosta † | Bishop of Osma, Spain |
| 3 Mar | 57.2 | Ercole Gonzaga † | Cardinal, Bishop of Mantova, Italy |
| 23 Mar | | Esteban Almeida † | Bishop of Cartagena (en España) |
| 27 Mar | | Agostinho Ribeiro † | Bishop Emeritus of Lamego, Portugal |
| 16 Apr | 65.2 | Francisco de Navarra y Hualde † | Archbishop of Valencia, Spain |
| 17 Apr | 69.9 | Girolamo Seripando, O.E.S.A. † | Cardinal, Archbishop of Salerno, Italy |
| 19 Apr | 85.2 | Francisco Marroquín Hurtado † | Bishop of Santiago de Guatemala |
| 26 Apr | 68.2 | Giacomo Puteo (del Pozzo) † | Cardinal, Archbishop Emeritus of Bari (-Canosa), Italy |
| 2 May | | Georg Schweicker † | Auxiliary Bishop of Speyer, Germany |
| 7 May | | Gilles Gaude (Gardz, Gundz), O.P. † | Auxiliary Bishop of Nantes, France |
| 12 May | | Pedro López de Mendoza † | Auxiliary Bishop of Burgos, Spain |
| 21 May | 72.3 | Pietro Contarini † | Bishop Emeritus of Paphos, Cyprus |
| Jun | | Hermann Weiland (Wessal) † | Bishop of Dorpat (Tartu), Estonia |
| 18 Aug | | Matija Bruman † | Bishop of Zagreb (Agram), Croatia |
| 3 Sep | | Pierre Bertrand † | Bishop of Cahors, France |
| 11 Sep | | Johann Pennarius, O.F.M. Conv. † | Auxiliary Bishop of Köln {Cologne}, Germany |
| 17 Sep | 50.7 | Giovanni Campeggi † | Bishop of Bologna, Italy |
| 16 Oct | | Galeazzo Roscio † | Bishop of Assisi, Italy |
| 31 Oct | 86.8 | Anthony Dunstan Kitchin † | Bishop of Llandaff, Wales, Great Britain |
| Nov | 67.9 | John Balgus, O. Carm. † | Bishop of Ossory, Ireland |
| 4 Dec | 58.9 | Alessandro Piccolomini † | Bishop of Pienza, Italy |
| 10 Dec | | Georg Marschalk von Pappenheim † | Bishop of Regensburg, Germany |
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