| Date | Age | Bishop | Title |
| unknown | | Dominico Giovanni Cavagnari † | Bishop Emeritus of Sagone, France |
| unknown | | Emilio Cavaliere, P.O. † | Bishop of Troia, Italy |
| unknown | | Gianfrancesco De' Bisleti † | Bishop of Cagli, Italy |
| unknown | | Giovanni Gambi † | Bishop of Ascoli Piceno, Italy |
| unknown | | Alberto Gualtieri, O.F.M. † | Bishop of Nicotera, Italy |
| unknown | | Carlo Giacinto Lascaris, O.P. † | Bishop of Spoleto, Italy |
| unknown | | Idelfonso Manara, B. † | Bishop of Bobbio, Italy |
| unknown | | Donough McCarthy † | Bishop of Cork, Ireland |
| unknown | | Giovan Andrea Monreale † | Archbishop of Reggio Calabria, Italy |
| unknown | | Francesco Odierna † | Bishop of Sulmona, Italy |
| unknown | | Nicola Rocco † | Bishop of Cassano all’Jonio, Italy |
| unknown | | Pietro Savastano † | Bishop of Castellammare di Stabia, Italy |
| unknown | | Agostino Spinola † | Bishop of Sagone, France |
| unknown | 76.0 | Michał Szembek † | Auxiliary Bishop of Kraków, Poland |
| 16 Jan | 55.7 | José Taberner (Taverner) Dárdena † | Bishop of Gerona, Spain |
| 19 Jan | 72.1 | Giovanni Battista Tolomei, S.J. † | Cardinal, Cardinal-Priest of S. Stefano al Monte Celio |
| 23 Feb | 76.1 | Henri-Augustin Le Pileur † | Bishop Emeritus of Saintes, France |
| 2 Mar | 73.2 | Joseph-Ignace-Jean-Baptiste de Mesgrigny † | Bishop of Grasse, France |
| 23 Apr | 63.1 | Giulio Piazza † | Cardinal, Archbishop (Personal Title) of Faenza, Italy |
| 1 May | 83.9 | Laurent Fieschi (de Flisco) † | Cardinal, Archbishop of Genova, Italy |
| 15 May | 63.7 | Antonio Baistrocchi, O. Carm. † | Vicar Apostolic of Great Moghul (Mughals), India |
| 8 Jun | 104.4 | Juan Herrera † | Bishop of Sigüenza, Spain |
| 10 Jun | 61.4 | Juan de Las Peñas † | Auxiliary Bishop of Cuenca, Spain |
| 12 Jun | 75.2 | Fabrizio Paolucci † | Cardinal, Prefect of the Roman Curia - Other |
| Jul | 69.5 | Philibert-Charles de Pas de Feuquieres † | Bishop of Agde, France |
| 3 Jul | 98.8 | Galeazzo Marescotti † | Cardinal, Bishop Emeritus of Tivoli, Italy |
| 10 Jul | 71.1 | Juan Bautista Alvarez de Toledo, O.F.M. † | Bishop Emeritus of Guadalajara, Jalisco, México |
| 26 Jul | 72.5 | Filoteo Zassi, O.S.B.M. † | Vicar Apostolic |
| 27 Sep | 73.7 | Manuel Pérez Araciel y Rada † | Archbishop of Zaragoza, Spain |
| 16 Nov | 74.9 | Philip Michael Ellis, O.S.B. † | Bishop of Segni, Italy |
| 16 Nov | 71.1 | Bernardino Scotti † | Cardinal, Cardinal-Priest of S. Pietro in Montorio |
| 23 Dec | 69.7 | Giovanni Battista (Giambattista) Bussi † | Cardinal, Bishop of Ancona e Numana, Italy |