| Date | Age | Bishop | Title |
| unknown | | Ascanio Albertini † | Bishop of Avellino-Frigento, Italy |
| unknown | | Antonio Balducci, O.P. † | Bishop of Trevico, Italy |
| unknown | | Pietro Cancellieri (Cavalieri) † | Bishop of Lipari, Italy |
| unknown | | Pedro de Agreda (Sánchez Martín), O.P. † | Bishop of Coro, Venezuela |
| unknown | 40.7 | Sebastian Haidlauf † | Auxiliary Bishop of Freising, Germany |
| unknown | | Gonzalo de Solórzano † | Bishop of Oviedo, Spain |
| 14 Jan | 74.0 | Juan Solano, O.P. † | Bishop Emeritus of Cuzco, Peru |
| 18 Jan | 63.3 | Archangelo de' Bianchi, O.P. † | Cardinal, Bishop Emeritus of Teano, Italy |
| 15 Feb | 49.1 | Cunerus Petri † | Bishop of Foreign Diocese |
| 4 Apr | | Manuel de Mercado Aldrete, O.S.H. † | Bishop of Panamá |
| 20 Apr | 58.2 | Francesco Alciati † | Cardinal, Bishop of Foreign Diocese |
| 26 Apr | 40.3 | Jakob Feucht † | Auxiliary Bishop of Bamberg, Germany |
| 8 Jul | | Francisco Tello Sandoval † | Bishop of Plasencia, Spain |
| 27 Aug | | Alessio Stradella, O.S.A. † | Bishop of Nepi e Sutri, Italy |
| 7 Sep | | Johann Georg Zobel von Giebelstadt † | Bishop-Elect of Bamberg, Germany |
| 22 Sep | 78.2 | Cristóbal Rojas Sandoval † | Archbishop of Sevilla {Seville}, Spain |
| 1 Dec | 71.9 | Giovanni Gerolamo Morone † | Cardinal, Cardinal-Bishop of Ostia (-Velletri) |
| 23 Dec | 64.0 | Gerard van Groesbeeck † | Cardinal, Bishop of Ličge, Belgium |