| Date | Age | Bishop | Title |
| unknown | | Alfonso Alvarez Guerrero † | Bishop of Monopoli, Italy |
| unknown | | Pedro Buerba, O.S.A. † | Archbishop of Oristano, Italy |
| unknown | | Valerio Cancellieri † | Bishop of Sant’Angelo dei Lombardi-Bisaccia, Italy |
| unknown | | Giovanni Pietro Dolfin † | Bishop of Cefalonia e Zante, Greece |
| unknown | | Girolamo Maccabei † | Bishop Emeritus of Castro [del Lazio], Italy |
| unknown | | Pedro Martínez de Luna † | Bishop of Tarazona, Spain |
| unknown | | Sebastiano Antonio Minturno † | Bishop of Crotone (Cotrone), Italy |
| unknown | | Juan Battista (Giovanni Battista) de Ojeda (Hogeda, Oxeda) † | Bishop of Agrigento (Girgenti), Italy |
| unknown | | Giulio Parisani † | Bishop of Rimini, Italy |
| unknown | | Georgius Pietkiwicz † | Bishop of Žemaičiai (Samogizia o Tels; Żmudź), Lithuania |
| unknown | | Prosper de Sainte-Croix † | Archbishop of Arles, France |
| 1 Jan | | Johann Grodecký † | Bishop of Olomouc (Olmütz), Czech Republic |
| 13 Jan | | Cornelio Musso, O.F.M. Conv. † | Bishop of Bitonto, Italy |
| 8 Mar | | Antonio Ganguzia † | Bishop of Vieste, Italy |
| 19 Mar | | Francisco de la Cruz, O.S.A. † | Bishop of Santiago de Cabo Verde |
| 5 Apr | 45.0 | Johann von Hoya zu Stolzenau † | Bishop of Münster, Germany |
| 14 Apr | 57.3 | Jakob Eliner † | Auxiliary Bishop of Konstanz {Constance}, Germany |
| 18 Apr | 65.4 | Bernhard von Raesfeld † | Former Bishop-Elect of Münster, Germany |
| 3 May | 75.5 | Giovanni Ricci † | Cardinal, Archbishop of Pisa, Italy |
| 7 May | | Juan de Arzolaras (Alzóloras), O.S.H. † | Bishop of Islas Canarias {Canary Islands}, Spain |
| 4 Jun | | Kaspar von Logau † | Bishop of Wrocław (Breslau), Poland |
| 20 Jun | 42.9 | Antoine de Créqui Canaples † | Cardinal, Bishop of Amiens, France |
| 21 Jul | 28.6 | Giulio Acquaviva d’Aragona † | Cardinal, Cardinal-Deacon of San Teodoro |
| 26 Jul | | Francisco de Abrego † | Bishop of Panamá |
| 6 Aug | | Joăo de Melo † | Archbishop of Évora, Portugal |
| Sep | | Hector d’Ossun † | Bishop of (Saint-Lizier de) Couserans, France |
| Sep | | Giacomo Galletti † | Bishop of Alessano, Italy |
| 6 Sep | 60.8 | Giovanni Andrea Candido, O.S.Io.Hieros. † | Bishop of Gerace, Italy |
| 10 Sep | | Pedro González Mendoza † | Bishop of Salamanca, Spain |
| 12 Sep | | Berardo Bongiovanni † | Bishop of Camerino, Italy |
| 16 Sep | | Bernardetto Minerbetti † | Bishop of Arezzo, Italy |
| 21 Sep | | Marco Saracini † | Bishop of Volterra, Italy |
| 30 Sep | | Diego Arnedo † | Bishop of Huesca, Spain |
| 27 Oct | 44.8 | Jerónimo Albornoz, O.F.M. † | Bishop of Córdoba (Tucumán), Argentina |
| 2 Nov | | Gregorio Boldrini, O.P. † | Bishop of Mantova, Italy |
| 22 Dec | 61.0 | Alessandro Crivelli † | Cardinal, Bishop Emeritus of Cariati e Cerenzia, Italy |
| 25 Dec | 50.9 | Charles de Guise de Lorraine † | Cardinal, Archbishop of Reims, France |