| Date | Age | Bishop | Title |
|---|
| unknown | 79.0 | Tommaso Mancini † | Bishop of Cittŕ della Pieve, Italy |
| unknown | 87.4 | Filippo Paini † | Bishop of Valva e Sulmona, Italy |
| unknown | 69.0 | Giuseppe Domenico Porqueddu † | Bishop of Iglesias, Italy |
| unknown | 73.6 | Pasquale Sansone † | Bishop of Ischia, Italy |
| 1 Jan | 59.4 | Niccolň Marcacci † | Bishop of Arezzo, Italy |
| 2 Jan | 63.3 | János Szily † | Bishop of Szombathely, Hungary |
| 6 Jan | 78.8 | Jean Jacques (Johann Jakob) Lantz † | Auxiliary Bishop of Strasbourg, France |
| 8 Jan | 62.6 | Francisco Ignacio Ińigo Angulo † | Bishop of Osma, Spain |
| 13 Jan | 78.9 | Giovanni Francesco Guidi di Bagno-Talenti † | Titular Patriarch of Antiochia {Antioch} |
| 22 Jan | 70.1 | Francisco Javier Cabrera Velasco † | Bishop of Ávila, Spain |
| 22 Jan | 71.0 | Lorenzo Suarez de Cantillana † | Bishop of Paraguay (o Ssma Assunzione) |
| 23 Jan | 75.4 | François-Gaspard de Jouffroy de Gonssans † | Bishop of Le Mans, France |
| 26 Jan | 74.7 | Carlo Rezzonico (Jr.) † | Cardinal, Cardinal-Bishop of Porto e Santa Rufina |
| 2 Feb | 67.0 | Feliciano Alonso, O.P. † | Vicar Apostolic of Eastern Tonking {Tonkino Orientale}, Viet Nam |
| 9 Feb | 62.4 | Giovanni Archinto † | Cardinal, Cardinal-Bishop of Sabina |
| 11 Feb | 63.4 | John Geddes † | Coadjutor Vicar Apostolic Emeritus of Lowland District, Scotland, Great Britain |
| 11 Feb | 60.9 | Giuseppe Gioacchino Lovera † | Bishop of Saluzzo, Italy |
| 17 Feb | 71.5 | Alexandre da Silva Pedrosa Guimarăes † | Bishop Emeritus of Macau, China |
| 22 Feb | 58.0 | Johann Baptist Lachenbauer, O.Cr. † | Bishop of Brno, Czechia |
| 24 Feb | 68.0 | Giovanni Andrea Serrao † | Bishop of Potenza, Italy |
| 7 Mar | 78.5 | Bartolomeu Manoel Mendes dos Reis † | Bishop Emeritus of Mariana, Brazil |
| 8 Mar | 58.7 | Paolo Pozzuoli † | Bishop of Sant’Agata de’ Goti, Italy |
| 12 Mar | 80.9 | François d’Etienne de Pruničres de Saint-Jean † | Bishop of Grasse, France |
| 15 Mar | 73.8 | Károly Esterházy de Galántha † | Bishop of Eger, Hungary |
| 31 Mar | 56.5 | [Julien Jean-Baptiste Duchemin] † | Bishop of [Calvados (Constitutional), France] |
| 3 Apr | 69.1 | Filippo d’Ambrogio † | Bishop of Caiazzo, Italy |
| 10 Apr | 77.7 | [Dominique Pouderoux] † | Bishop of [Hérault (Constitutional), France] |
| 15 Apr | 64.9 | Yves-Alexandre de Marbeuf † | Archbishop of Lyon, France |
| 17 Apr | 73.3 | Jose Martinez Palomino y Lopez de Lorena † | Bishop Emeritus of Chiapas (Ciudad Real de Chiapas), México |
| 7 May | 70.4 | Gennaro Clemente Francone † | Bishop of Troia, Italy |
| 15 May | 62.9 | Jules-Basile Ferron de La Ferronnays † | Bishop of Lisieux, France |
| 22 May | 63.6 | [François-Antoine Brendel] † | Bishop Emeritus of [Bas-Rhin (Constitutional), France] |
| 25 May | 66.4 | Tommaso Maria Francone, C.R. † | Archbishop of Manfredonia, Italy |
| 26 May | 86.3 | Ignazio Andrea Sambiase, C.R. † | Archbishop of Conza, Italy |
| 31 May | 65.5 | Félix Rico Rico † | Bishop of Teruel, Spain |
| 1 Jun | 66.4 | Augustin Botoš-Okić (Occhich), O.F.M. Obs. † | Vicar Apostolic of Bosnia (Ottoman), Croatia |
| 4 Jun | 51.9 | [Jean-Baptiste Gratien (Graziani)], C.M. † | Bishop of [Seine-Inférieure (Constitutional), France] |
| 24 Jun | 73.5 | Luigi (Michael) Spagnoletti, O.F.M. Obs. † | Archbishop of Dubrovnik (Ragusa), Croatia |
| 21 Jul | 70.0 | Manuel Ferrer y Figueredo † | Bishop of Málaga, Spain |
| 16 Aug | 58.6 | Francesco Pio Santi † | Bishop of Sovana (Soana), Italy |
| 20 Aug | 47.9 | Michele Natale † | Bishop of Vico Equense, Italy |
| 29 Aug | 81.6 | Giovanni Angelico Braschi † | Pope (Roma {Rome}, Italy) |
| Sep | 75.6 | Vencentius de Via † | Bishop of Tinos and Mykonos, Greece |
| 16 Sep | 77.3 | Felipe José de Tres-Palacios y Verdeja † | Bishop of San Cristobal de la Habana, Cuba |
| 25 Sep | 74.4 | Ludwik Stanisław Górski, Sch. P. † | Auxiliary Bishop of Włocławek (Kujawy, Kalisze), Poland |
| 9 Oct | 57.9 | Pierre-Joseph-Georges Pigneau de Béhaine, M.E.P. † | Vicar Apostolic of Cochin {Cocincina}, Viet Nam |
| 14 Oct | 71.8 | Antonio Stefano Trevisan † | Bishop of Scardona (Skradin), Croatia |
| 17 Oct | 66.5 | Godefroid Philippe Joseph de La Porte, O.F.M. Cap. † | Archbishop of Naxos, Greece |
| 22 Oct | 72.7 | József Batthyány † | Cardinal, Archbishop of Esztergom, Hungary |
| 30 Oct | 72.7 | José da Avé-Maria Leite da Costa e Silva, O.SS.T. † | Bishop of Angra, Portugal |
| Nov | 67.6 | Giovanni Domenico Straticň, O.P. † | Bishop of Hvar (Lesina), Croatia |
| Nov | 55.4 | Juan Antonio Tamayo, O.S. † | Titular Bishop of Botrys |
| 3 Nov | 72.7 | António Freire Gameiro de Sousa † | Bishop of Aveiro, Portugal |
| 7 Nov | 69.4 | Pál László Esterházy † | Bishop of Pécs, Hungary |
| 12 Nov | 57.0 | Anton Andrássy † | Bishop of Rožňava, Slovakia |
| 13 Nov | 59.7 | Carmine Fimiani † | Bishop of Nardň, Italy |
| 18 Nov | 77.0 | Carlo Giuseppe Morozzo † | Bishop of Fossano, Italy |
| 27 Nov | 78.9 | Benoit Judica, O. de M. † | Titular Bishop of Thelepte |
| 7 Dec | 86.4 | Pietro Maria Franzesi † | Bishop of Montepulciano, Italy |
| 10 Dec | 64.5 | Antoni Narzymski † | Auxiliary Bishop of Płock, Poland |
| 19 Dec | 74.0 | Andrés Ambrosio de Llanos y Valdés, O.F.M. † | Bishop of Linares o Nueva León, Nuevo León, México |
| 26 Dec | 66.2 | Gennaro Fortunato † | Bishop of Lavello, Italy |
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