| Date | Age | Bishop | Title |
| unknown | 53.3 | Alberto Gualtieri, O.F.M. † | Bishop of Nicotera, Italy |
| unknown | | Donough McCarthy † | Bishop of Cork, Ireland |
| 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 Santo 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, O.F.M. Cap. † | Bishop of Grasse, France |
| 21 Mar | 72.4 | Idelfonso Manara, B. † | Bishop of Bobbio, Italy |
| 15 Apr | 50.5 | Giovanni Crisostomo Bianchi, O.S.A. † | Titular Archbishop of Nazareth |
| 23 Apr | 63.1 | Giulio Piazza † | Cardinal, Archbishop (Personal Title) of Faenza, Italy |
| May | 76.1 | Giovanni Gambi † | Bishop of Ascoli Piceno, Italy |
| 1 May | 83.9 | Lorenzo Maria Fieschi (de Flisco) † | Cardinal, Archbishop of Genova, Italy |
| 15 May | 63.7 | Antonio Baistrocchi, O. Carm. † | Vicar Apostolic of Great Moghul (Mughals), India |
| Jun | 69.5 | Pietro Giovanni Battista Puccini † | Bishop of Cortona, Italy |
| 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, Secretary of the Secretariat of State |
| Jul | 72.7 | Giovanni Andrea Monreale † | Archbishop of Reggio Calabria, Italy |
| Jul | 65.7 | Giovanni Michele Teroni, B. † | Bishop of Venosa, Italy |
| 3 Jul | 98.8 | Galeazzo Marescotti † | Cardinal, Bishop Emeritus of Tivoli, Italy |
| 20 Jul | 59.6 | Alessandro Burgos, O.F.M. Conv. † | Bishop of Catania, Italy |
| 25 Jul | 69.1 | Philibert-Charles de Pas de Feuquieres † | Bishop of Agde, France |
| 26 Jul | 72.5 | Filoteo Zassi, O.S.B.M. † | Archbishop of Durrës (Durazzo) (Albanian), Albania |
| 11 Aug | 63.0 | Emilio Giacomo Cavaliere, C.P.O. † | Bishop of Troia, Italy |
| Sep | 66.6 | Francesco Maria Arrighi † | Bishop of Montepulciano, Italy |
| Sep | 53.0 | Dominico Giovanni Cavagnari † | Bishop of Sagone (Sagona), France |
| 17 Sep | 81.8 | Petrus Govarts † | Vicar Apostolic of ’s Hertogenbosch (Bois-le-Duc), Netherlands |
| 27 Sep | 73.7 | Manuel Pérez Araciel y Rada † | Archbishop of Zaragoza, Spain |
| 21 Oct | 65.1 | Juan Lorenzo Ibáñez de Arilla, O.S.A. † | Bishop of Tropea, Italy |
| Nov | 75.0 | Giuseppe Maria Borgognini † | Bishop of Montalcino, Italy |
| Nov | 71.8 | Nicolò Rocco † | Bishop of Cassano all’Jonio, Italy |
| 16 Nov | 73.9 | Philip Michael Ellis, O.S.B. † | Bishop of Segni, Italy |
| 16 Nov | 71.1 | Bernardino Scotti † | Cardinal, Cardinal-Priest of San Pietro in Montorio |
| 23 Nov | 70.0 | Vitale Giuseppe de’ Buoi † | Bishop of Perugia, Italy |
| 23 Dec | 69.7 | Giovanni Battista (Giambattista) Bussi † | Cardinal, Bishop of Ancona e Numana, Italy |