| Date | Age | Bishop | Title |
|---|
| unknown | | Mark Forstall, O.S.A. † | Bishop of Kildare and Leighlin, Ireland |
| unknown | | Andrés Girón † | Archbishop of Santiago de Compostela, Spain |
| unknown | | Gaetano Miroballi † | Archbishop of Amalfi, Italy |
| 5 Jan | 70.2 | Pietro Vidoni (Sr.) † | Cardinal, Bishop Emeritus of Lodi, Italy |
| 1 Feb | 73.1 | Johann Eberhard Nidhard (Neidhardt), S.J. † | Cardinal, Titular Archbishop of Edessa in Osrhoëne |
| 8 Feb | 81.1 | Jean d'Olce † | Bishop of Bayonne, France |
| 11 Apr | | Nicolas Ladvocat-Billiard † | Bishop of Boulogne (-Sur-Mer), France |
| 18 Apr | 87.3 | Jean du Haut de Sallies † | Bishop of Lescar, France |
| 27 Apr | 62.3 | Dominique de Ligni † | Bishop of Meaux, France |
| 24 May | 72.4 | Celio Piccolomini † | Cardinal, Archbishop of Siena, Italy |
| 31 May | 71.4 | Juan de Escalante Turcios y Mendoza † | Bishop of Yucatán (Mérida), Yucatán, México |
| 31 May | 76.6 | Jesse Perkhofer † | Auxiliary Bishop of Brixen {Bressanone}, Italy |
| 2 Jun | | Agostino Isimbardi, O.S.B. † | Bishop of Cremona, Italy |
| 2 Jul | | Arnauld-François de Maytie † | Bishop of Oloron, France |
| 4 Jul | 87.5 | Kaspar Zeiler † | Auxiliary Bishop of Augsburg, Germany |
| 11 Jul | 55.7 | St. Oliver Plunkett † | Archbishop of Armagh, Ireland |
| 10 Aug | | Marcos de Sobremonte † | Bishop of Puerto Rico (Porto Rico) |
| 13 Aug | | Nicolás Ortiz del Puerto y Colmenares Salgado † | Bishop of Antequera, Oaxaca, México |
| 23 Nov | 67.9 | Carlo Rossetti † | Cardinal, Bishop of Faenza, Italy |
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