| Date | Age | Bishop | Title |
|---|
| unknown | | Eusebio Franzosini, O.P. † | Vicar Apostolic of Smirne, Turkey |
| 14 Jan | 45.3 | Giuseppe Stanislao Concas † | Bishop of Bosa, Italy |
| 17 Jan | 66.0 | Richard Walsh † | Bishop of Cork, Ireland |
| 18 Jan | 54.6 | Girolamo Colonna di Sciarra † | Cardinal, Cardinal-Deacon of Sant’Agata de’ Goti |
| 19 Jan | | Antoine-Jérôme Boyvin de Vaurouy † | Former Bishop-Elect of Perpignan-Elne, France |
| 19 Jan | 76.6 | Antoni Józef Żółkowski † | Auxiliary Bishop of Vilnius, Lithuania |
| 27 Jan | 59.3 | Johann Theodor von Bayern † | Cardinal, Bishop of Regensburg, Germany |
| 29 Jan | 66.9 | Juan José de Eguiara y Eguren † | Former Bishop-Elect of Yucatán (Mérida), México |
| 31 Jan | 79.2 | Felipe Manrique de Lara † | Bishop of Ayacucho o Huamanga (Guamanga), Peru |
| 26 Feb | 68.0 | Carlo Francesco Casanova † | Archbishop of Sassari, Italy |
| 2 Mar | 53.1 | Baldassare Cenci (Jr.) † | Cardinal, Cardinal-Priest of Santa Maria in Ara Coeli |
| 2 Mar | 67.6 | Romualdu Massei † | Bishop of Nebbio, France |
| 18 Mar | 77.5 | Guido Orselli † | Bishop of Cesena, Italy |
| 21 Mar | 81.9 | Stanislao Poliastri † | Archbishop of Rossano, Italy |
| 31 Mar | 47.6 | Giovanni Carlo Molinari † | Apostolic Nuncio to Belgium |
| 4 Apr | 59.5 | Nicolás Gil Martínez y Malo † | Bishop of Santa Marta, Colombia |
| 5 Apr | 29.2 | Benigno Avenati, B. † | Priest of Clerics Regular of St. Paul |
| 12 Apr | 69.1 | Giuseppe Spinelli † | Cardinal, Cardinal-Bishop of Ostia |
| 14 Apr | 64.0 | Francesco Paolo Carelli † | Bishop of Montepeloso, Italy |
| 4 Jun | 73.9 | Johann Friedrich Karl von Ostein † | Archbishop of Mainz, Germany |
| 4 Jun | 65.0 | Giovanni Domenico Santucci † | Bishop of Acquapendente, Italy |
| 11 Jun | 70.5 | Camillo Paolucci (Merlini) † | Cardinal, Cardinal-Bishop of Porto e Santa Rufina |
| 15 Jun | 65.2 | Giovanni Battista Miceli † | Bishop of Cassano all’Jonio, Italy |
| 15 Jun | 50.0 | Josef Maria von Thun und Hohenstein † | Bishop of Passau, Germany |
| 18 Jun | 57.4 | Richard Lincoln † | Archbishop of Dublin, Ireland |
| 14 Jul | 71.4 | Francesco Pacca † | Archbishop of Benevento, Italy |
| 18 Jul | 64.5 | Pierre-Annet de Pérouse † | Bishop of Gap, France |
| 23 Aug | 76.3 | Charles-François Cantoni (Couton) † | Bishop of Nice, France |
| 7 Sep | 72.4 | Massenzio (dei Conti) Filo † | Bishop of Castellaneta, Italy |
| 8 Sep | 83.2 | Nicolò Antonio Carafa, O.S.B. † | Bishop Emeritus of Tricarico, Italy |
| 12 Sep | 72.2 | Simon-Pierre de Lacoré (La Corée) † | Bishop of Saintes, France |
| 17 Sep | 81.6 | Antoni Sebastian Dembowski † | Bishop of Włocławek (Kujawy, Kalisze), Poland |
| 2 Oct | 65.9 | Claude-Antoine de Choiseul-Beaupré † | Bishop of Chalons-sur-Marne, France |
| 10 Oct | 74.7 | Pierre Louis Jacquet † | Auxiliary Bishop of Liège, Belgium |
| 16 Oct | 78.0 | Michele Vittorio Villa † | Bishop of Ivrea, Italy |
| 18 Oct | 69.0 | Giovanni Francesco Banchieri † | Cardinal, Cardinal-Priest of Sant’Adriano al Foro |
| 18 Oct | 68.4 | Ludovico Valenti † | Cardinal, Bishop Emeritus of Rimini, Italy |
| 25 Oct | 61.5 | Domenico Rovegno † | Archbishop of Brindisi, Italy |
| 26 Oct | 87.3 | Johann Moritz Gustav von Manderscheid-Blankenheim † | Archbishop of Praha {Prague}, Czechia |
| 29 Oct | 81.1 | Nicolas François Bonhomme † | Titular Bishop of Carpasia |
| 2 Nov | 62.3 | Joseph-Nicolas Deschamps de Chaumont † | Bishop of Genève {Geneva}, Switzerland |
| 7 Nov | 76.8 | Ferdinando Romualdo Guiccioli, O.S.B. † | Archbishop of Ravenna, Italy |
| 8 Nov | 73.2 | Henri-Constance de Lort de Sérignan de Valras † | Bishop of Mâcon, France |
| 20 Nov | 43.4 | Philipp Wirich Lorenz von Daun zu Sassenheim und Callenborn † | Auxiliary Bishop of Passau, Germany |
| 25 Nov | 50.8 | Giuseppe Locatelli † | Apostolic Nuncio to Naples, Italy |
| 28 Nov | 80.3 | Domingo Pantaleón Álvarez de Abreu † | Bishop of Tlaxcala (Puebla de los Angeles), México |
| 29 Nov | 74.9 | Imrich I. Esterházy de Galántha † | Bishop of Nitra, Slovakia |
| 9 Dec | 73.0 | Antonio Fonseca † | Bishop of Jesi, Italy |
| 11 Dec | 79.4 | Ramón Francisco Agustín Eura, O.S.A. † | Bishop of Orense, Spain |
| 21 Dec | 76.7 | Costantino Serra, C.R.S. † | Bishop of Albenga, Italy |
| 23 Dec | 54.9 | Antoine de Lastic † | Bishop Emeritus of (Saint-Bertrand de) Comminges, France |
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