| Date | Age | Bishop | Title |
| unknown | | Lodovico (Francesco) Centofiorini † | Bishop of Nicotera, Italy |
| unknown | 67.0 | Tommaso d’Aquino, C.R. † | Bishop of Mottola (Motula), Italy |
| unknown | | Alphonse d’Elbène † | Bishop Emeritus of Albi, France |
| unknown | | Giovanni Dolfin † | Bishop Emeritus of Belluno, Italy |
| unknown | | René Leclerc † | Bishop of Glandèves, France |
| unknown | 54.0 | Cherubino Manzoni, O.F.M. † | Bishop of Termoli, Italy |
| unknown | | Bernardino Rodríguez de Arriaga, O.S.A. † | Bishop of Guadix, Spain |
| unknown | | Gonzalo de Rueda † | Bishop of Gallipoli, Italy |
| unknown | | Piotr Sokołowski † | Auxiliary Bishop of Chelmno (Culma, Kulm), Poland |
| unknown | | Talento de’ Talenti † | Bishop of Montepulciano, Italy |
| unknown | 56.0 | Ambrosio Viola, O.P. † | Bishop of Lacedonia, Italy |
| 7 Jan | 51.0 | Sallustio Pecólo (Pecoli) † | Bishop Emeritus of Venosa, Italy |
| 12 Feb | | Pablo Durán † | Bishop of Urgell, Spain |
| Mar | 63.2 | Fabrizio Carafa † | Bishop of Bitonto, Italy |
| 17 Mar | 65.2 | Giovanni Battista Vercellino † | Bishop of Aosta, Italy |
| Apr | | Jean de Plantavit de la Pause † | Bishop Emeritus of Lodève, France |
| 5 Apr | 56.3 | Timoteo Pérez Vargas, O.C.D. † | Bishop Emeritus of Ispahan, Iran |
| 8 Apr | 62.3 | Léonor d’Estampes de Valançay, O.S.B. † | Archbishop of Reims, France |
| 30 May | | Luis Venegas Figueroa † | Bishop of Almería, Spain |
| 18 Jun | 61.1 | Francisco Rodríguez de Valcárcel † | Bishop of Cartagena, Colombia |
| 30 Jun | 53.5 | Michael Chumer (Chumberg), O.F.M. † | Auxiliary Bishop of Ljubljana, Slovenia |
| 26 Jul | | Gerolamo Corio † | Bishop of Parma, Italy |
| 15 Aug | 74.6 | Engelbert des Bois † | Bishop of Namur {Namen}, Belgium |
| 16 Aug | 65.8 | Filippo Benedetto de Sio, O.F.M. Conv. † | Bishop of Boiano, Italy |
| 22 Aug | | Charles de Montchal † | Archbishop of Toulouse, France |
| 25 Aug | 57.1 | Beat Albrecht von Ramstein † | Bishop of Basel, Switzerland |
| 3 Sep | 64.7 | Giovanni Giacomo Panciroli † | Cardinal, Cardinal-Priest of Santo Stefano al Monte Celio |
| 24 Sep | 82.7 | Johann Schöner † | Auxiliary Bishop of Bamberg, Germany |
| 25 Sep | 70.7 | Ciriaco Rocci † | Cardinal, Titular Archbishop of Patrae (Veters) |
| Oct | | Pietro Magri † | Bishop of Policastro, Italy |
| Oct | 56.8 | Octavius Rivarola † | Bishop of Ajaccio, France |
| Oct | 73.8 | Francesco Traina † | Bishop of Agrigento (Girgenti), Italy |
| 10 Oct | | Philippus Rovenius † | Vicar Apostolic of Batavia (Holland Mission), Netherlands |
| 13 Oct | | Francesco Surgenti (Sorgente), C.R. † | Bishop of Monopoli, Italy |
| 18 Oct | | Hernando de Lobo Castrillo, O.F.M. † | Bishop of Puerto Rico (Porto Rico) |
| Nov | 64.8 | Paolo Teutonico † | Archbishop of Manfredonia, Italy |
| 12 Nov | 72.7 | Nicolas Dufiff † | Bishop-Elect of Arras, France |
| 26 Nov | 50.9 | Bl. Terence Albert O’Brien, O.P. † | Bishop of Emly, Ireland |
| 1 Dec | 78.9 | Pietro Niccolini † | Archbishop of Firenze {Florence}, Italy |
| 8 Dec | 67.5 | Veit Adam Gepeckh von Arnsbach † | Bishop of Freising, Germany |