| Date | Age | Bishop | Title |
|---|
| unknown | | Bartolomeo Castelli, C.R. † | Bishop of Mazara del Vallo, Italy |
| unknown | | Vincenzo Ferrero, O.P. † | Bishop of Gravina, Italy |
| unknown | | Domenico Galisi † | Bishop of Lettere-Gragnano, Italy |
| unknown | | Faustino Giuseppe Griffoni † | Bishop of Crema, Italy |
| unknown | | Domenico Maria Liguori, C.R. † | Bishop of Lucera, Italy |
| unknown | 42.0 | Alejo Fernando de Rojas y Acevedo † | Bishop of La Paz, Bolivia |
| unknown | 61.7 | João de Sahagún, O.A.D. † | Bishop of São Tomé e Príncipe |
| 22 Jan | 40.8 | Kornylij Lebeckyj, O.S.B.M. † | Bishop of Foreign Diocese |
| 26 Jan | 71.7 | Giovanni Francesco Barbarigo † | Cardinal, Bishop of Padova {Padua}, Italy |
| 29 Jan | | Thomas Flynn † | Bishop of Ardagh (and Clonmacnois), Ireland |
| 12 Feb | 62.1 | Jacinto Valledor Fresno † | Bishop of Osma, Spain |
| 14 Feb | 58.5 | Marco Antonio Ansidei † | Cardinal, Archbishop (Personal Title) of Perugia, Italy |
| 19 Feb | 69.4 | Agostino Pipia, O.P. † | Cardinal, Bishop Emeritus of Osimo e Cingoli, Italy |
| 23 Feb | 81.1 | Pietro Francesco (Vincenzo Maria) Orsini de Gravina, O.P. † | Pope (Roma {Rome}, Italy) |
| 28 Feb | 78.2 | Charles Maigrot, M.E.P. † | Vicar Apostolic Emeritus of Fo-Kien, China |
| 12 Mar | 88.2 | Diego Morcillo Rubio de Suñón de Robledo, O.SS.T. † | Archbishop of Lima, Peru |
| 14 Mar | 62.2 | Giuseppe Maria Positano, O.P. † | Archbishop of Salerno, Italy |
| 21 Mar | | Carlo Pignatelli † | Bishop of Gaeta, Italy |
| 22 Mar | 76.9 | Benedetto Pamphilj † | Cardinal, Librarian of the Vatican Library |
| 23 Mar | | Giacinot Chiurlia (Chyurlia) † | Bishop of Giovinazzo, Italy |
| 28 Mar | | José Pereto Ricarte, O. de M. † | Bishop of Almería, Spain |
| 5 Apr | 68.2 | Antonius Dominikus Reichsgraf von Wolkenstein-Trostburg † | Bishop of Trento, Italy |
| 23 Apr | 66.2 | Bernardo Maria Conti, O.S.B. † | Cardinal, Bishop Emeritus of Terracina, Priverno e Sezze, Italy |
| 2 May | 57.2 | Tommaso Marino † | Bishop of Siracusa, Italy |
| 23 May | 57.8 | Félix Bernuy Zapata y Mendoza † | Bishop of Islas Canarias {Canary Islands}, Spain |
| 23 Jul | 82.6 | Angelo Maria Porfiri (Porfirius) † | Bishop of Alife, Italy |
| 2 Aug | 58.6 | Michel Poncet de la Rivière † | Bishop of Angers, France |
| 6 Sep | 88.2 | Innico Caracciolo (Jr.) † | Cardinal, Bishop of Aversa, Italy |
| 8 Sep | | Valerio Rota † | Bishop of Belluno, Italy |
| 14 Sep | | Jean Grillet, O.P. † | Bishop of Aosta, Italy |
| 20 Oct | 48.4 | Carlo Collicola † | Cardinal, Cardinal-Priest of S. Maria in Portico |
| 7 Nov | | Giorgio Cattaneo † | Bishop of Vigevano, Italy |
| 9 Nov | 65.4 | Denis-François Bouthillier de Chavigny † | Archbishop of Sens, France |
| 9 Nov | 66.5 | Johann Baptist Gegg † | Auxiliary Bishop of Worms, Germany |
| 19 Nov | 62.9 | Diego Muñoz Baquerizo † | Bishop of Segorbe, Spain |
| 6 Dec | 73.4 | Feliks Ignacy Kretowski † | Bishop of Chelmno (Culma), Poland |
| 13 Dec | 61.1 | Bernardo Jiménez Cascante † | Bishop of Barcelona, Spain |
| 20 Dec | | Giacinto Dragonetti † | Bishop of Marsi, Italy |
| 27 Dec | 75.2 | Agostino Cusani † | Cardinal, Bishop Emeritus of Pavia, Italy |
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