| Date | Age | Bishop | Title |
| unknown | | Benedetto , O.P. † | Bishop of Nachitschewan (Naxivan, Nakhtchevan, Nakhchivan), Armenia |
| unknown | | Huan (John) Blackleach (Hesketh), O.S.A. † | Bishop of The Isles (Sodor), Scotland, Great Britain |
| unknown | | Pietro Bodoni † | Bishop of Terni, Italy |
| unknown | | Bernardino Bongiovanni † | Bishop of Venosa, Italy |
| unknown | | Nicolaus de Braciano, O.S.A. † | Auxiliary Bishop of Parma, Italy |
| unknown | | Enrico Bruno, O.P. † | Archbishop of Taranto, Italy |
| unknown | | David de Burgo (Burke) † | Bishop of Clonfert, Ireland |
| unknown | | Francesco de Comitibus, O.F.M. † | Bishop of Lixien (Lissanen), Albania |
| unknown | | Pietro Dandolo † | Bishop of Padova {Padua}, Italy |
| unknown | | Diego † | Titular Bishop of Callipolis |
| unknown | | Alessandro della Marra † | Archbishop of Santa Severina, Italy |
| unknown | | Giovanni de’ Vecchi de Galionisso † | Bishop of Termoli, Italy |
| unknown | | Filippo Gaio † | Archbishop of Bar (Antivari), Montenegro |
| unknown | | Girolamo Lusco † | Bishop of Strongoli, Italy |
| unknown | | Charles de Martigny † | Bishop of Castres, France |
| unknown | | Laurent Pippi, O.P. † | Bishop of Sagone (Sagona), France |
| unknown | | Giacomo de Puyasola, O.S.A. † | Bishop of Sorres (Sorra), Italy |
| unknown | | Nicolas Rodendorp † | Bishop of Reval (Rewel), Estonia |
| unknown | | Alessandro Salati † | Bishop of Minori, Italy |
| unknown | | Ferenc Szatmári † | Bishop of Győr (Raab), Hungary |
| unknown | | Mario Zamba (Gamba) † | Bishop of Dulcigno (Olcini, Olgun), Montenegro |
| 5 Feb | | Michael Hildebrandi † | Archbishop of Riga, Latvia |
| 3 Mar | 69.1 | Melchior von Meckau † | Cardinal, Bishop of Brixen {Bressanone}, Italy |
| 14 Mar | 70.2 | Giovanni Antonio Sangiorgio † | Cardinal, Bishop of Parma, Italy |
| 17 Mar | | Amedeo di Romagnano † | Bishop of Mondovi, Italy |
| Apr | | Edmund Commerford † | Bishop of Ferns, Ireland |
| 30 May | | Antoine de Luzech † | Bishop of Cahors, France |
| Jun | | Antoine Dufour, O.P. † | Bishop of Marseille, France |
| 28 Jun | 78.4 | Johann (Jan) Filipec z Prostějov, O.F.M. † | Bishop Emeritus of Oradea Mare {Gran Varadino, Nagyvárad}, Romania |
| 24 Aug | | Enrique de Aragón † | Bishop of Gallipoli, Italy |
| 4 Sep | | Bartolomeo Trevisani † | Bishop of Belluno, Italy |
| 9 Sep | | François de Luxembourg † | Bishop of Le Mans, France |
| 7 Oct | 70.7 | Johann von Eindhoven, C.R.S.A. † | Auxiliary Bishop Emeritus of Trier, Germany |
| 30 Oct | | Tristan d’Aure † | Bishop Emeritus of Aire, France |
| 5 Nov | | Nicolas Ruistre † | Bishop of Arras, France |
| 24 Nov | | Carlo di Lussemburgo † | Bishop of Laon, France |
| Dec | 80.9 | Matteo Baldeschi (degli Ubaldi) † | Bishop of Perugia, Italy |
| 31 Dec | 66.9 | Wilhelm Westfal † | Bishop of Lübeck, Germany |