| Date | Age | Bishop | Title |
|---|
| unknown | 68.7 | Francesco Antonio Deplano † | Bishop of Iglesias, Italy |
| unknown | 80.3 | Gerolamo Formagliari † | Bishop Emeritus of Todi, Italy |
| unknown | 69.6 | Tommaso Agostino de Simone † | Bishop of Montepeloso, Italy |
| unknown | 56.4 | Raffaele Tosti † | Bishop of Fondi (Fundi), Italy |
| 11 Jan | 73.4 | Juan Bautista Cervera, O.F.M. Disc. † | Bishop of Cádiz, Spain |
| 12 Jan | 89.2 | Richard Challoner † | Vicar Apostolic of London District, England, Great Britain |
| 13 Jan | 62.7 | Raymund Anton von Strasoldo † | Bishop of Eichstätt, Germany |
| 22 Jan | 62.4 | Henri-Marie-Bernardin de Rosset de Ceilhes de Fleury † | Archbishop of Cambrai, France |
| 24 Jan | 82.8 | Pierre-Jules-César de Rochechouard-Montigny † | Bishop Emeritus of Bayeux, France |
| 28 Jan | 59.9 | Jan Maurycy von Strachwitz † | Apostolic Administrator of Wrocław (Breslau), Poland |
| 3 Feb | 65.9 | Juan Ignacio de la Rocha † | Bishop of Michoacán, México |
| 21 Feb | 80.0 | Bonaventura Bernardi † | Bishop of Ossero (Osor), Croatia |
| 24 Feb | 81.0 | Domenico Giordani † | Bishop Emeritus of Teano, Italy |
| 13 Mar | 64.6 | Giuseppe Du Mesnil † | Bishop of Volterra, Italy |
| 21 Mar | 50.0 | Antoni Maciej Sierakowski † | Bishop of Inflanty (Livonia)-Pilten, Poland |
| 25 Mar | 77.0 | Francesco Gaetano Incontri † | Archbishop of Firenze {Florence}, Italy |
| 31 Mar | 76.4 | Franz Heinrich Wendelin von Kagenegg † | Auxiliary Bishop Emeritus of Eichstätt, Germany |
| 14 May | 63.0 | Salvatore Pisani † | Bishop of Patti, Italy |
| 5 Jun | 51.2 | Giovanni Ottavio Manciforte Sperelli † | Cardinal, Titular Archbishop of Teodosia |
| 12 Jun | 63.1 | Antonio Macarulla Minguilla de Aguilain † | Bishop of Durango, México |
| 28 Jun | 69.6 | Johann Mathäus Schweiberer † | Auxiliary Bishop of Praha {Prague}, Czechia |
| Jul | 77.5 | Bernardo Bonaventura Bokenhemer, O.F.M. † | Titular Bishop of Apollonia |
| 10 Jul | 69.1 | Miguel Fernando Merino † | Bishop of Ávila, Spain |
| 14 Jul | 64.9 | Lorenzo Lay y Anzano, O.P. † | Bishop of Segorbe, Spain |
| 21 Jul | 61.0 | Agustín de Alvarado y Castillo † | Bishop of Ciudad Rodrigo, Spain |
| 27 Jul | 83.1 | Giuseppe Filippo Porporato † | Bishop of Saluzzo, Italy |
| 20 Aug | 66.5 | Manuel Jiménez Pérez, O.S.B. † | Bishop of Puerto Rico (Porto Rico) |
| 31 Aug | 49.3 | Bernardino Muti † | Apostolic Nuncio to Portugal |
| 4 Sep | 55.7 | Nicola Filomarini (Filomarino), O.S.B. † | Bishop of Caserta, Italy |
| 10 Sep | 73.7 | Giovanni Donato Durante † | Bishop of Ugento, Italy |
| 11 Sep | 54.2 | Jan Alojzy Aleksandrowicz † | Bishop of Chełm, Poland |
| 20 Sep | 73.1 | Bonaventura Sculco † | Bishop of Bisignano, Italy |
| 24 Sep | 53.7 | Flaviano Giacomo Stefano Salustri, O.A.D. † | Bishop of Peking [Beijing], China |
| 29 Sep | 69.4 | Germain Chasteigner de la Chasteigneraye † | Bishop of Saintes, France |
| 30 Sep | 41.4 | François Cittadella † | Bishop of Accia and Mariana, France |
| 30 Sep | 46.7 | John Stafford † | Coadjutor Bishop of Ferns, Ireland |
| 16 Oct | 78.4 | Juan Portugal de la Puebla † | Titular Patriarch of Constantinople |
| 2 Nov | 72.2 | Antonio Cantoni † | Archbishop of Ravenna, Italy |
| 28 Nov | 75.7 | José Climent Avinent † | Bishop Emeritus of Barcelona, Spain |
| Dec | 71.5 | Marco Antonio Lombardi † | Bishop of Crema, Italy |
| 10 Dec | 66.9 | Francisco Javier Delgado y Venegas † | Cardinal, Patriarch of West Indies, Spain |
| 10 Dec | 55.9 | Santiago Palmero Escada † | Bishop of Badajoz, Spain |
| 12 Dec | 78.3 | Christophe de Beaumont du Repaire † | Archbishop of Paris, France |
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