| Date | Age | Bishop | Title |
|---|
| unknown | | Miguel António Barreto de Meneses † | Bishop of Miranda, Portugal |
| unknown | | Giambattista Ettore Caracciolo † | Archbishop of Bari (-Canosa), Italy |
| unknown | | Nicola Cifaglione † | Archbishop of Messina, Italy |
| unknown | | Lourenço de Lencastre † | Bishop of Elvas, Portugal |
| unknown | 63.0 | Andrzej Mikolaj Stanislaw Kostka Mlodziejowski † | Bishop of Poznań, Poland |
| unknown | | Bernardo de São Caetano, O.S.A. † | Bishop of São Tomé of Meliapore, India |
| 13 Jan | 62.7 | Pierre-Augustin-Bernardin de Rosset de Rocozel de Fleury † | Bishop of Chartres, France |
| 1 Feb | 66.2 | Manuel de Abad e Illanar, O. Praem. † | Bishop of Arequipa, Peru |
| 26 Feb | 63.2 | William Walton † | Vicar Apostolic of Northern District, England, Great Britain |
| 11 Mar | 76.0 | Franz Joseph Friedrich Ambuel † | Bishop of Sion {Sitten}, Switzerland |
| 11 Mar | 78.2 | Niccola Sermattei † | Bishop of Assisi, Italy |
| 16 Mar | | Antonio Ripanti † | Bishop of Orvieto, Italy |
| 21 Mar | 72.7 | Francisco José Rodríguez Chico † | Bishop of Teruel, Spain |
| 22 Mar | 63.0 | Giuseppe Ippoliti † | Bishop of Pistoia-Prato, Italy |
| 7 Apr | 69.2 | Alonso Cano Nieto, O.SS.T. † | Bishop of Segorbe, Spain |
| 9 Apr | 74.5 | Giuseppe Maria Castelli † | Cardinal, Prefect of the Congregation for Propagation of the Faith |
| 23 Apr | 58.2 | Romoaldo Guidi † | Cardinal, Cardinal-Deacon of S. Giorgio in Velabro |
| 25 May | 92.4 | Louis-Armand Chomel † | Bishop Emeritus of Orange, France |
| 18 Jun | 78.5 | Jean-Louis de Gouyon de Vaudurand † | Bishop Emeritus of Saint-Pol-de-Léon, France |
| 21 Jun | 59.7 | Martin Nugk von Lichtenhoff † | Prefect of Meissen (Meißen) {Lusazia o Lausitz; Sassonia}, Germany |
| 27 Jul | 58.6 | Bertrand Reydellet, M.E.P. † | Vicar Apostolic of Western Tonking {Tonkino Occidentale}, Viêt Nam |
| 5 Aug | 73.6 | Mathias Poncet de la Rivière † | Bishop Emeritus of Troyes, France |
| 28 Aug | | Nathaniel Bürger, O.F.M. † | Vicar Apostolic of Nanking [Nanjing], China |
| 4 Oct | 64.9 | Tommaso Pacelli † | Bishop of Bovino, Italy |
| 26 Oct | | Waclaw Hieronim Sierakowski † | Archbishop of Lviv, Ukraine |
| 27 Oct | 70.6 | Olivier-Simon Le Bon, M.E.P. † | Vicar Apostolic of Siam, Thailand |
| 4 Dec | 55.0 | Pietro Pamphilj † | Cardinal, Titular Archbishop of Colossae {Rhodes} |
| 16 Dec | 77.7 | Juan Tomás de Boxadors y Sureda de San Martín, O.P. † | Cardinal, Cardinal-Priest of S. Sisto |
| 16 Dec | 66.2 | Gennaro Antonio de Simone † | Cardinal, Bishop Emeritus of Pesaro, Italy |
| 22 Dec | 65.0 | Giovanni Costanzio Caracciolo † | Cardinal, Cardinal-Deacon of S. Eustachio |
| 23 Dec | 66.3 | Mario Marefoschi Compagnoni † | Cardinal, Prefect of the Congregation of Rites |
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