| Date | Age | Bishop | Title |
| unknown | | Tommaso Asti † | Bishop of Forli, Italy |
| unknown | | Bartolomeo Bonini † | Bishop of Šibenik (Knin), Croatia |
| unknown | | Vincenzo de Corbis † | Bishop of Acerra, Italy |
| unknown | | Giovanni Giacomo del Balzo † | Bishop of Alessano, Italy |
| unknown | | Alonso de Fonseca y Acevedo † | Archbishop Emeritus of Santiago de Compostela, Spain |
| unknown | | Agapito de Gaeta † | Bishop of Ascoli Satriano, Italy |
| unknown | | Melchiorre Grimaldi † | Bishop of Brugnato, Italy |
| unknown | | Francesco Isvales † | Archbishop of Reggio Calabria, Italy |
| unknown | | Malachy O’Clowan † | Bishop of Killala, Ireland |
| unknown | | Matteo Orsini † | Bishop of Calvi, Italy |
| unknown | 50.0 | Antonio Pizzamano † | Bishop of Feltre, Italy |
| 14 Feb | 72.1 | Matthias Scheit (Scheidt) † | Bishop Emeritus of Seckau, Austria |
| 29 Mar | | Łukasz Watzenrode † | Bishop of Warmia (Ermland), Poland |
| Apr | 77.3 | Nikolaus Kaps † | Auxiliary Bishop of Gurk, Austria |
| 6 Jul | | Lorenzo Gabriel † | Bishop of Bergamo, Italy |
| 19 Jul | | Pascual de Ampudia, O.P. † | Bishop of Burgos, Spain |
| Aug | | Carlo Roero † | Bishop of Mondovi, Italy |
| 12 Aug | | Valeriano Ordóńez Villaquirán † | Bishop of Oviedo, Spain |
| 12 Sep | 47.7 | Zsigmond Thurzo † | Bishop of Oradea Mare {Gran Varadino, Nagyvárad}, Romania |
| 24 Sep | | Pierre d’Auxillon † | Bishop of Carcassonne, France |
| 26 Sep | | Jean d’Amboise † | Bishop of Langres, France |
| 31 Oct | | Kaspar Grünwald, O.P. † | Auxiliary Bishop of Würzburg, Germany |