| Date | Age | Bishop | Title |
|---|
| unknown | | Juan Francisco de Padilla y San Martín, O. de M. † | Bishop of Santa Cruz de la Sierra, Bolivia |
| unknown | | Francisco Núñez de la Vega, O.P. † | Bishop of Chiapas (Ciudad Real de Chiapas), Chiapas, México |
| unknown | | Vincenzo Maria de Rossi † | Bishop of Penne-Atri, Italy |
| 8 Jan | 53.1 | Claude Le Tonnelier de Breteuil † | Bishop of Boulogne (-Sur-Mer), France |
| 17 Jan | | Giovanni Battista Pallotta † | Bishop of Foligno, Italy |
| 20 Jan | 81.1 | Giannicolò Conti † | Cardinal, Bishop of Ancona e Numana, Italy |
| 26 Jan | 64.1 | François-Ignace de Baglion du Saillant † | Bishop of Poitiers, France |
| 29 Jan | | Ernst August von Braunschweig-Lüneburg † | Bishop of Osnabrück, Germany |
| 4 Mar | 68.2 | Jan Stanisław Witwicki † | Bishop of Poznań, Poland |
| 3 Apr | 53.3 | Johann Franz Christoph Freiherr von Talmberg † | Bishop of Hradec Králové, Czech Republic |
| 1 May | 83.3 | Antoine-Pierre de Grammont, O.S.B. † | Archbishop of Besançon, France |
| 29 Jun | 75.1 | Paluzzo Paluzzi Altieri Degli Albertoni † | Cardinal, Archbishop Emeritus of Ravenna, Italy |
| 7 Jul | | Giacinto Trucchi, O.P. † | Bishop of Ivrea, Italy |
| 14 Aug | | Francisco de Aguiar y Seijas y Ulloa † | Archbishop of México, Federal District |
| 16 Aug | | Mathurin Savary † | Bishop of Sées, France |
| Oct | | Michele Maria Dentice † | Bishop of Mottola (Motula), Italy |
| 27 Oct | 65.0 | Johann Philipp Burkard † | Auxiliary Bishop of Speyer, Germany |
| 13 Nov | 61.9 | Gines (Ginesio) Barrientos, O.P. † | Auxiliary Bishop of Manila, Philippines |
| 24 Nov | | Antonio de Arrigaga y Agüero, O.S.A. † | Bishop of Yucatán (Mérida), Yucatán, México |
| 25 Nov | | Nicolás Delgado, O.F.M. † | Bishop of León en Nicaragua |
| 14 Dec | 53.1 | Johann Gottfried Reichsritter von Guttenberg † | Bishop of Würzburg, Germany |
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