| Date | Age | Bishop | Title |
| unknown | | Adrianus Appelkeren, O.S.A. † | Auxiliary Bishop of Utrecht, Netherlands |
| 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 | | Eustache † | Bishop of Santorini {Thira}, Greece |
| unknown | | Agapito de Gaeta † | Bishop of Ascoli Satriano (Puglia), Italy |
| unknown | | Melchiorre Grimaldi † | Bishop of Brugnato, Italy |
| unknown | | István † | Bishop of Nitra, Slovakia |
| unknown | | Francesco Isvales † | Archbishop of Reggio Calabria, Italy |
| unknown | | Karl Jensson Skonk † | Bishop of Hamar, Norway |
| unknown | | Eiliv Jonsson † | Bishop of Stavanger, Norway |
| unknown | 65.0 | Gabriele Maccafani † | Bishop of Marsi, Italy |
| unknown | | Nicolas Maguire † | Bishop of Leighlin, Ireland |
| unknown | | Malachy O’Clowan † | Bishop of Killala, Ireland |
| unknown | | Matteo Mignano de Orsini † | Bishop of Calvi Risorta, Italy |
| unknown | | Jérome Pallavicini † | Bishop of Aleria, France |
| unknown | | Francesco Spalluccia † | Bishop of Ruvo (Ruo)(di Puglia), Italy |
| unknown | 32.0 | Jean Baptiste Ususmari † | Bishop of Mariana, France |
| 5 Feb | | Matteo dell’Olmo, O.P. † | Auxiliary Bishop of Milano {Milan}, Italy |
| 14 Feb | 72.1 | Matthias Scheit (Scheidt) † | Bishop Emeritus of Seckau, Austria |
| 28 Mar | 64.4 | Łukasz Weisselrod (Watzenrode) † | Bishop of Warmia (Ermland), Poland |
| Apr | | Giovanni Jacobi † | Bishop of Roskilde (Roeskilde), Denmark |
| Apr | 77.2 | Nikolaus Kaps † | Auxiliary Bishop of Gurk, Austria |
| Jul | | Juan Pujades † | Bishop-Elect of Malta |
| 6 Jul | | Lorenzo Gabriel † | Bishop of Bergamo, Italy |
| 19 Jul | 70.5 | Pascual Rebenga de Ampudia, O.P. † | Bishop of Burgos, Spain |
| 30 Jul | | Jean Bohier † | Bishop of Nevers, France |
| Aug | 27.5 | Carlo Roero † | Bishop of Mondovi, Italy |
| 12 Aug | | Valeriano Ordóńez Villaquirán † | Bishop of Oviedo, Spain |
| 12 Sep | 47.6 | Zsigmond Thurzó † | Bishop of Oradea Mare {Gran Varadino, Nagyvárad}, Romania |
| 24 Sep | | Pierre d’Auxillon † | Bishop of Carcassonne, France |
| 26 Sep | 34.7 | Jean d’Amboise † | Bishop of Langres, France |
| 31 Oct | | Kaspar Grünwald, O.P. † | Auxiliary Bishop of Würzburg, Germany |
| 31 Oct | 50.8 | Antonio Pizzamano † | Bishop of Feltre, Italy |
| Dec | | Cormac MacShamhradhain, C.R.S.A. † | Bishop of Kilmore, Ireland |