| Date | Age | Bishop | Title |
|---|
| unknown | 66.0 | Girolamo Clarelli † | Bishop of Rieti, Italy |
| unknown | | Gianbattista Colombini † | Archbishop of Benevento, Italy |
| unknown | 80.1 | Niccolò de Rofa (Rosa) † | Bishop of Pozzuoli, Italy |
| unknown | | Bernardo António de Melo Osório † | Bishop of Guarda, Portugal |
| unknown | 57.9 | Giovanni Battista Orsi † | Bishop of Fano, Italy |
| 7 Jan | 66.3 | Antoine Clériade de Choiseul-Beaupré † | Cardinal, Archbishop of Besançon, France |
| 7 Jan | 86.5 | Guillaume d'Hugues de la Motte † | Archbishop of Vienne, France |
| 7 Jan | 72.0 | Józef Andrzej Załuski † | Bishop of Foreign Diocese |
| 19 Jan | 66.5 | Pedro Jacinto Valente, O. do Cristo † | Bishop of Santiago de Cabo Verde |
| 23 Jan | | Apollinare Peruzzini, O.S.A. † | Bishop of Fossombrone, Italy |
| 27 Jan | 66.5 | Carlo Parlati † | Archbishop of Acerenza e Matera, Italy |
| 18 Feb | 67.1 | Karl Michael von Attems (Attembs) † | Archbishop of Gorizia (Görz), Italy |
| 5 Mar | 62.2 | Franz Josef Graf von Gondola, O.S.B. † | Auxiliary Bishop of Paderborn, Germany |
| 7 Mar | 90.6 | Carlo Alberto Guidobono Cavalchini † | Cardinal, Datary of the Apostolic Datary |
| 16 Mar | 49.2 | Giannagostino Gradenigo † | Bishop of Ceneda, Italy |
| 19 Mar | 58.4 | Lucas Ramírez Galán, O.F.M. † | Bishop of Tui, Spain |
| 21 Mar | 78.0 | Deigo Bernardo de Peredo y Navarrete † | Bishop of Yucatán (Mérida), Yucatán, México |
| 24 Mar | 43.7 | Maria Romedius Graf von Sarnthein † | Auxiliary Bishop of Brixen {Bressanone}, Italy |
| 6 Apr | | Angelo Luigi Giovo, O.S.B. † | Bishop of Ventimiglia, Italy |
| 11 Apr | 73.9 | Isidoro Cossío Bustamente † | Bishop Emeritus of Valladolid, Spain |
| 13 Apr | | Agustín Manuel Camacho y Rojas † | Archbishop of Santafé en Nueva Granada, Colombia |
| 14 Apr | | Juan Carlos de Vilches y Cabrera † | Bishop of León en Nicaragua |
| 10 May | 62.5 | Jozef Karol Zbiško † | Official of Spiš, Slovakia |
| Jun | 72.4 | Daniel-Bertrand de Langle † | Bishop of Saint-Papoul, France |
| 11 Jun | 66.6 | Emmerich Joseph Reichsfreiherr von Breidbach zu Bürresheim † | Archbishop of Mainz, Germany |
| 10 Jul | 91.5 | Louis-François-Gabriel d'Orléans de La Motte † | Bishop of Amiens, France |
| 23 Jul | 81.3 | Bartolomeo Antonio Passi † | Auxiliary Bishop of Trento, Italy |
| 24 Jul | 77.6 | Étienne-René Potier de Gesvres † | Cardinal, Bishop Emeritus of Beauvais, France |
| 25 Jul | 63.6 | Miguel Anselmo Álvarez de Abreu y Valdéz † | Bishop of Antequera, Oaxaca, México |
| 4 Sep | 49.7 | Léopold-Charles de Choiseul-Stainville † | Archbishop of Cambrai, France |
| 19 Sep | 59.4 | José Francis Laso de Castilla † | Bishop of Málaga, Spain |
| 22 Sep | 68.9 | Lorenzo (Giovanni Vincenzo Antonio) Ganganelli, O.F.M. Conv. † | Pope (Roma {Rome}, Italy) |
| 23 Sep | 62.7 | Charles-Jean de Bertin † | Bishop of Vannes, France |
| 13 Oct | 72.8 | Guillaume d'Arche † | Bishop of Bayonne, France |
| 17 Oct | 58.4 | Hermann Hannibal Reichsgraf von Blümegen † | Bishop of Hradec Králové, Czech Republic |
| 5 Nov | 80.0 | François-Marie de Mansi † | Archbishop of Avignon, France |
| 18 Nov | 79.2 | Giovanni Francesco Stoppani † | Cardinal, Cardinal-Bishop of Palestrina |
| 2 Dec | 48.9 | Antonius Reichsgraf von Herberstein, C.R. † | Bishop of Trieste, Italy |
| 14 Dec | | Juan Manuel Garcia de Vargas y Ribera, O. de M. † | Bishop of Chiapas (Ciudad Real de Chiapas), Chiapas, México |
| 18 Dec | 76.0 | Manuel Quintano Bonifaz † | Apostolic Administrator of Toledo, Spain |
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