| Date | Age | Bishop | Title |
| unknown | 75.9 | Francesco Saverio Bassi, O.S.B. † | Archbishop of Chieti, Italy |
| unknown | 64.4 | Lorenz Barlomiej Ignacy Antoni Raczyński, O. Cist. † | Auxiliary Bishop of Gniezno, Poland |
| 27 Jan | 81.7 | Salvatore Maria Lombardi † | Bishop of Andria, Italy |
| 31 Jan | 71.8 | Antonio Maria Doria Pamphilj † | Cardinal, Archpriest of the Basilica di Santa Maria Maggiore {Saint Mary Major Basilica} |
| 9 Feb | 63.6 | Salvador de Sanmartin y Cuevas † | Bishop of Chiapas (Ciudad Real de Chiapas), México |
| 11 Mar | 87.2 | Jean-Louis d’Usson de Bonac † | Bishop Emeritus of Agen, France |
| 14 Mar | 47.8 | Ernst von Schwarzenberg † | Bishop of Győr (Raab), Hungary |
| 31 Mar | | Patrick Everard † | Archbishop of Cashel (-Emly), Ireland |
| 21 Apr | 68.3 | Silvestro Todaro, O.F.M. Conv. † | Bishop of Patti, Italy |
| 28 Apr | 74.8 | Blas Jacobo Beltrán † | Bishop of Coria, Spain |
| 2 May | 54.1 | José Ignacio de Arancibia y Hormaguei, O.F.M. † | Bishop of Linares o Nueva León, Nuevo León, México |
| 11 May | 70.2 | Giovanni Battista Pio Vitale † | Bishop of Mondovi, Italy |
| 12 May | 73.6 | Rafael de Múzquiz y Aldunate † | Archbishop of Santiago de Compostela, Spain |
| 17 May | 77.7 | Francesco Maria d’Este † | Bishop of Reggio Emilia, Italy |
| 27 May | 65.8 | György Kurbély † | Bishop of Veszprém, Hungary |
| 2 Jun | 83.3 | William Gibson † | Vicar Apostolic of Northern District, England, Great Britain |
| 21 Jun | 83.0 | César-Guillaume de la Luzerne † | Cardinal, Bishop Emeritus of Langres, France |
| 2 Jul | 74.5 | Michele Di Pietro † | Cardinal, Major Penitentiary of the Apostolic Penitentiary |
| 11 Jul | 84.3 | Iovinus Fridericus Bystrzycki † | Auxiliary Bishop-Elect of Warszawa {Warsaw}, Poland |
| 18 Jul | 62.8 | Bernardino D’Avolio, O.F.M. Cap. † | Bishop of Trivento, Italy |
| 20 Jul | 54.9 | Maurice-Jean-Madeleine de Broglie † | Bishop of Gent {Ghent, Gand}, Belgium |
| 1 Aug | 55.6 | Francesco Saverio Dracopoli † | Bishop of Chios (Scio), Greece |
| 8 Aug | 64.1 | Jean-Joseph Audemar † | Coadjutor Vicar Apostolic of Cochin {Cocincina}, Viet Nam |
| 21 Aug | | Petrus de Glory † | Titular Bishop of Macri |
| 12 Sep | 79.0 | José Joaquim da Cunha Azeredo Coutinho † | Bishop Emeritus of Elvas, Portugal |
| 16 Sep | 73.7 | Gerardo José Andrés Vázquez Parga, O. Cist. † | Bishop of Salamanca, Spain |
| 18 Sep | 74.5 | Francisco Javier Almonacid † | Bishop of Palencia, Spain |
| 23 Sep | 79.9 | Niccolò Laparelli † | Bishop of Cortona, Italy |
| 23 Sep | 65.0 | Manuel Ros de Medrano † | Bishop of Tortosa, Spain |
| 29 Sep | 54.1 | Candido Maria Frattini † | Titular Archbishop of Philippi |
| 29 Sep | 73.1 | Giuseppe Bartholomew Xerri † | Bishop-Elect of Tyana |
| 1 Oct | | Robert Walsh † | Bishop of Waterford and Lismore, Ireland |
| 6 Oct | 70.0 | Paolo Lamberto D’Allègre † | Bishop of Pavia, Italy |
| 20 Oct | 85.0 | Alexandre-Angélique Talleyrand de Périgord † | Cardinal, Archbishop of Paris, France |
| 22 Oct | 83.0 | Giambenedetto Falier, O.S.B. † | Bishop of Ceneda, Italy |
| 27 Oct | 76.2 | Camille-Louis-Apollinaire de Polignac † | Bishop Emeritus of Meaux, France |
| 30 Oct | 90.7 | Jean-Baptiste Boulier † | Bishop of Evreux, France |
| 8 Nov | 68.0 | Francisco Antonio La Dueña Cisneros † | Bishop of Segorbe, Spain |
| 9 Nov | 52.2 | Agostino Tommasi † | Bishop of Aversa, Italy |
| 4 Dec | 59.9 | Giovanni Antioco Azzei † | Archbishop of Oristano, Italy |
| 24 Dec | 63.8 | Michele Ruopoli † | Bishop of Isernia, Italy |
| 30 Dec | 78.8 | Józef Gabriel Gembart † | Auxiliary Bishop of Gniezno e Poznań, Poland |