| Date | Age | Bishop | Title |
| unknown | 38.0 | Giovanni Canauli (Cannuli) † | Bishop of Fossombrone, Italy |
| unknown | | Gaspar de Andrada (Anorada), O.F.M. † | Bishop of Comayagua, Honduras |
| unknown | | Cesare Ferrero † | Bishop of Ivrea, Italy |
| unknown | 56.0 | Maffeo Gambara † | Bishop of Tortona, Italy |
| unknown | | Bartolomeo Giorgi, O.F.M. † | Bishop of Pesaro, Italy |
| unknown | | Jérôme de Langue † | Bishop of (Saint-Lizier de) Couserans, France |
| unknown | 70.0 | Celso Mancini † | Bishop of Alessano, Italy |
| unknown | | Federico Mezio † | Bishop of Termoli, Italy |
| unknown | 42.0 | Giovanni Francesco Murta (de Mirto), C.R. † | Bishop of Aleria, France |
| unknown | | Salvador Ribera Avalos, O.P. † | Bishop of Quito, Ecuador |
| unknown | | Jacobus Rusconi † | Bishop of Nebbio, France |
| unknown | | Francesco Simonetta † | Bishop of Foligno, Italy |
| unknown | | Gómez Suárez Figueroa † | Bishop of Cádiz, Spain |
| unknown | | Usimbardo Usimbardi † | Bishop of Colle di Val d’Elsa, Italy |
| 24 Jan | 57.9 | Honoré du Laurens † | Archbishop of Embrun, France |
| 28 Jan | 25.1 | Silvestro Aldobrandini, O.S.Io.Hieros. † | Cardinal, Cardinal-Deacon of San Cesareo in Palatio |
| 1 Feb | 80.1 | Bl. Conor O’Devany, O.F.M. † | Bishop of Down and Connor, Ireland |
| 5 Feb | | Juan Tomás de Blanes, O.P. † | Bishop of Chiapas (Ciudad Real de Chiapas), México |
| 17 Feb | 57.2 | Ernst von Bayern † | Archbishop-Elect of Köln {Cologne}, Germany |
| 22 Feb | 52.1 | Francisco García Guerra, O.P. † | Archbishop of México, Federal District |
| 4 Mar | 82.2 | Juan Vich Manrique de Lara † | Archbishop of Tarragona, Spain |
| 12 Mar | 66.5 | Lorenzo Bianchetti † | Cardinal, Cardinal-Priest of San Lorenzo in Panisperna |
| 22 Mar | 79.2 | Gerolamo Provenzale † | Archbishop of Sorrento, Italy |
| 28 Mar | 76.2 | Geoffroy de Billy † | Bishop of Laon, France |
| 12 Apr | | Ascanio Giacobazio (Giacovazzi) † | Bishop Emeritus of Anglona-Tursi, Italy |
| 19 Apr | | Claude de Bellièvre † | Archbishop of Lyon, France |
| 19 Apr | 66.1 | Anne d’Escars de Givry (de Pérusse), O.S.B. † | Cardinal, Bishop of Metz, France |
| 11 May | | Clément Isnard † | Bishop of Glandèves, France |
| 19 May | 77.4 | Gregorio Petrocchini, O.S.A. † | Cardinal, Cardinal-Bishop of Palestrina |
| 21 May | 53.4 | Karel Maes † | Bishop of Gent {Ghent, Gand}, Belgium |
| 28 May | | Pietro Usimbardi † | Bishop of Arezzo, Italy |
| 13 Jun | | Gaspare Pasquali, O.F.M. Conv. † | Bishop of Rieti, Italy |
| 24 Jul | | Ottavio Mirto Frangipani † | Archbishop of Taranto, Italy |
| Aug | | Girolamo di Porzia † | Bishop of Adria, Italy |
| 25 Aug | 36.6 | Antonio Maria Franceschini † | Bishop of Amelia, Italy |
| 12 Sep | 63.7 | Pedro Manso Zuñiga † | Bishop of Calahorra y La Calzada, Spain |
| 27 Sep | 52.7 | Alfonso Manrique † | Archbishop of Burgos, Spain |
| 27 Sep | | Carlo Trotti † | Bishop of Bagnoregio (Bagnorea), Italy |
| 2 Oct | 58.8 | Gregorio de Sanctis, C.R. † | Bishop of Belcastro, Italy |
| 8 Oct | | Camillo Borghese † | Archbishop of Siena, Italy |
| 13 Oct | | Dionigi Morelli † | Bishop of Ferentino, Italy |
| Nov | 97.8 | Andrés Bacallar † | Archbishop of Sassari, Italy |
| Nov | 59.8 | Angelo Baroni, O.P. † | Bishop of Chioggia, Italy |
| 7 Nov | 51.8 | Johann Konrad von Gemmingen † | Bishop of Eichstätt, Germany |
| 5 Dec | 52.9 | Ottavio Acquaviva d’Aragona (Sr.) † | Cardinal, Archbishop of Napoli {Naples}, Italy |
| 30 Dec | 58.0 | Domingos Torrado, O.S.A. † | Auxiliary Bishop of Goa, India |