| Date | Age | Bishop | Title |
|---|
| unknown | | Hilario a Jesu Costa, O.A.D. † | Vicar Apostolic of Eastern Tonking {Tonkino Orientale}, Viêt Nam |
| unknown | | Biagio o Blasio De Dura † | Bishop of Potenza, Italy |
| unknown | 51.1 | Leandro a Pietate, O.A.D. † | Bishop of São Tomé e Príncipe |
| unknown | 69.4 | Bartolomé San Martín Orive † | Bishop of Palencia, Spain |
| unknown | | Nicolò Tupputi † | Bishop of Nusco, Italy |
| 11 Jan | 79.2 | Gianantonio Davia † | Cardinal, Bishop Emeritus of Rimini, Italy |
| 12 Jan | 60.0 | Thomas John Francis de Strickland de Sizorghe † | Bishop of Namur {Namen}, Belgium |
| 22 Jan | 68.4 | Giberto Bartolomeo Borromeo † | Cardinal, Bishop of Novara, Italy |
| 6 Feb | 87.8 | Lorenzo Corsini † | Pope (Roma {Rome}, Italy) |
| 17 Feb | 69.2 | Giuseppe Maria Perrimezzi, O.M. † | Bishop Emeritus of Oppido Mamertina, Italy |
| 20 Feb | 78.1 | Charles-Fontaine Des Montees † | Bishop of Nevers, France |
| 26 Feb | 69.1 | Charles-François de Châteauneuf de Rochebonne † | Archbishop of Lyon, France |
| 29 Feb | 72.7 | Pietro Ottoboni † | Cardinal, Cardinal-Bishop of Ostia (-Velletri) |
| 12 Mar | 66.6 | Giovanni Battista Altieri (Jr.) † | Cardinal, Cardinal-Bishop of Palestrina |
| 16 Mar | 59.8 | Krzysztof Andrzej Jan Szembek † | Bishop of Warmia, Poland |
| 3 Apr | 80.3 | Thomas Dominic Williams, O.P. † | Vicar Apostolic of Northern District, England, Great Britain |
| 6 Apr | 49.2 | Jacques-Charles-Alexandre Lallemant † | Bishop of Sées, France |
| 22 May | 41.7 | Claude-Louis de La Chatre † | Bishop of Agde, France |
| Jun | | Bernard O'Gara † | Archbishop of Tuam, Ireland |
| 2 Jun | 66.4 | Leandro di Porzia (Porcia), O.S.B. † | Cardinal, Bishop Emeritus of Bergamo, Italy |
| 12 Jun | 82.3 | Johann Franz Reichsgraf von Schenk von Stauffenberg † | Bishop of Konstanz {Constance}, Germany |
| 24 Jun | 64.1 | Serafino Cenci † | Cardinal, Archbishop of Benevento, Italy |
| 15 Jul | 65.4 | Antonio Maria Bacigalupi † | Bishop of Ventimiglia, Italy |
| 20 Jul | | Cristoforo Lorenzo Baratta † | Bishop of Fossano, Italy |
| 4 Aug | 68.4 | Andrés de Orbe y Larreátegui † | Archbishop Emeritus of Valencia, Spain |
| 20 Aug | 29.2 | François-Louis Pourroy de L'Auberivière † | Bishop of Québec, Québec, Canada |
| 28 Aug | 57.4 | Georg Xaver Marotti † | Bishop of Pedena, Austria |
| 31 Aug | 67.9 | Antônio de Guadalupe, O.F.M. † | Bishop of Viseu, Portugal |
| 2 Oct | 69.8 | José Manuel de Sarricolea y Olea † | Bishop of Cuzco, Peru |
| 27 Oct | 67.4 | Charles du Plessis d'Argentré † | Bishop of Tulle, France |
| 13 Dec | 61.3 | Benedetto Odescalchi-Erba † | Cardinal, Archbishop Emeritus of Milano {Milan}, Italy |
| 25 Dec | 94.0 | Jean Soanen † | Bishop of Senez, France |
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