| Date | Age | Bishop | Title |
| unknown | | Francesco Maria de Aste † | Archbishop of Otranto, Italy |
| unknown | 70.0 | Patrick O'Donnelly † | Bishop Emeritus of Dromore, Ireland |
| unknown | | Bartolomeo Porzio † | Bishop of Cariati, Italy |
| unknown | | Luca Trapani † | Bishop of Tricarico, Italy |
| 6 Jan | | Pierre Clément † | Bishop of Périgueux (Vesuna), France |
| 27 Jan | 68.4 | Ferdinando d'Adda † | Cardinal, Cardinal-Bishop of Albano |
| 14 Feb | 70.3 | Francesco Maria Casini, O.F.M. Cap. † | Cardinal, Cardinal-Priest of S. Prisca |
| 23 Feb | 88.6 | Nicolò Acciaioli † | Cardinal, Cardinal-Bishop of Ostia (-Velletri) |
| 10 Mar | 74.2 | Andrés Capero Agramunt, O. Carm. † | Bishop of Lugo, Spain |
| 19 Mar | 72.6 | Giambattista Spínola (Jr.) † | Cardinal, Cardinal-Priest of S. Cesareo in Palatio |
| 22 Mar | 81.1 | José de Oliveira, O.S.A. † | Bishop Emeritus of Angola e Congo, Angola |
| 24 Mar | 69.2 | Raimondo Ferretti † | Archbishop of Ravenna, Italy |
| 1 Apr | | Juan José de Llamas y Rivas, O.C. † | Bishop of Panamá |
| 14 Apr | 73.3 | Giovanni Francesco Maria Poggi † | Bishop of San Miniato, Italy |
| 22 Apr | 60.9 | Claude-Maur d'Aubigné † | Archbishop of Rouen, France |
| 8 May | 71.5 | Francisco a São Agostinho, T.O.R. † | Bishop of Santiago de Cabo Verde |
| 11 May | 67.4 | Kazimierz Łubieński † | Bishop of Kraków, Poland |
| 2 Jun | 72.4 | Charles Le Goux de la Berchère † | Archbishop of Narbonne, France |
| 21 Jun | | Domingo de Valencia † | Bishop-Elect of Nueva Caceres, Philippines |
| 2 Jul | | Andrés Quiles Galindo, O.F.M. † | Bishop of León en Nicaragua |
| 20 Jul | 68.6 | Édouard Bargedé † | Bishop of Nevers, France |
| 26 Jul | 39.5 | Hyacinth Petit, O. Carm. † | Vicar Apostolic of Nordic Missions, Germany |
| 31 Jul | 52.6 | Pedro Mejorada, O.P. † | Bishop-Elect of Nueva Segovia, Philippines |
| 3 Aug | 67.5 | Johann Philipp Reichsfreiherr von Greifenclau zu Vollraths † | Bishop of Würzburg, Germany |
| 17 Aug | 42.0 | Giovanni Carafa † | Bishop of Nicastro, Italy |
| 20 Aug | 67.6 | David-Nicolas Bertier † | Bishop of Blois, France |
| 2 Oct | | Roland-François de Kerhoent de Coetenfao † | Bishop of Avranches, France |
| 10 Oct | 67.8 | Isidoro Bertrán García † | Archbishop of Tarragona, Spain |
| 24 Oct | 65.6 | José Díez Santos de San Pedro † | Bishop of Ciudad Rodrigo, Spain |
| 28 Oct | | Ennemond Alleman de Montmartin † | Bishop of Grenoble, France |
| 30 Nov | 86.0 | Heinrich Hartard Freiherr von Rollingen † | Bishop of Speyer, Germany |
| 29 Dec | | Pierre de Charritz de Ruthie † | Bishop of Rieux, France |