| Date | Age | Bishop | Title |
|---|
| unknown | 52.1 | Antonio da Penha de França, O.A.D. † | Bishop of São Tomé e Príncipe |
| unknown | 43.0 | Josafat Hutorovyč † | Bishop of Smoleńsk (Ukrainian), Poland |
| unknown | 41.8 | Antonio Negri † | Bishop of Shkodrë (Scutari), Albania |
| unknown | 70.0 | Sancho de Andrade de Figueroa † | Bishop of Quito, Ecuador |
| unknown | 74.2 | Antonio Primi, O.F.M. Obs. † | Bishop of Trebinje e Mrkan, Bosnia and Herzegovina |
| Jan | 71.2 | Gaetano De Andrea, C.R. † | Bishop of Monopoli, Italy |
| 3 Jan | 71.2 | Luis de Sousa † | Cardinal, Archbishop of Lisboa, Portugal |
| 7 Jan | 68.0 | Ernst von Trautson zu Falkenstein † | Bishop of Wien, Austria |
| 9 Jan | 50.0 | Pedro Díaz de Cienfuegos † | Bishop of Trujillo, Peru |
| 4 Feb | 69.0 | Louis Foucquet † | Bishop of Agde, France |
| 15 Feb | 66.1 | Jean-Armand de Rotondy de Biscarras † | Bishop of Béziers, France |
| 2 Mar | 76.1 | Giuseppe de Lazzara † | Bishop of Alife, Italy |
| 2 Mar | 76.1 | Sébastien de Guémadeuc † | Bishop of Saint-Malo, France |
| 2 Mar | 40.1 | Antoni Żółkiewski † | Bishop of Pińsk-Turaŭ (Ukrainian), Belarus |
| 4 Mar | 71.1 | Ignace Grégoire Pierre VI Shahbaddin † | Patriarch of Antiochia {Antioch} (Syrian), Lebanon |
| 7 Mar | 70.1 | Felipe Galindo Chávez y Pineda, O.P. † | Bishop of Guadalajara, Jalisco, México |
| 8 Mar | 45.7 | Antoine Girard de La Bornat (La Bournat) † | Bishop of Poitiers, France |
| 13 Mar | 81.1 | Denis Sanguin de Livry † | Bishop of Senlis, France |
| 15 Mar | 80.8 | Bartolomeo Menatti † | Bishop of Lodi, Italy |
| 16 Mar | 61.9 | Jerzy Albrecht Denhoff † | Bishop of Kraków, Poland |
| 22 Mar | 78.4 | Michelangelo Cotignola † | Bishop Emeritus of Ischia, Italy |
| Apr | 78.5 | Antonio del Río Colmenares † | Archbishop of Acerenza e Matera, Italy |
| Apr | 60.9 | Francesco Jany † | Bishop of Sirmio (Srijem; Sirmium), Croatia |
| 3 Apr | 52.6 | Johann Franz von Khuen zu Liechtenberg † | Bishop of Brixen {Bressanone}, Italy |
| 3 Apr | 43.0 | Francisco Antonio de Borja-Centelles y Ponce de Léon † | Cardinal, Archbishop of Burgos, Spain |
| 6 Apr | 65.2 | Francesco Juste Giusti † | Bishop of Camerino, Italy |
| 12 Apr | 70.2 | Matteo Cosentino † | Bishop of Anglona-Tursi, Italy |
| 12 Apr | 57.2 | Charles de Villeneuve de Vence † | Bishop of Glandèves, France |
| 20 Apr | 69.3 | Marcantonio Zollio † | Bishop of Crema, Italy |
| 2 May | 71.4 | Guillaume de La Brunetière du Plessis-Gesté † | Bishop of Saintes, France |
| 11 May | 60.3 | Scipione Negrelli † | Bishop of San Severino (Marche), Italy |
| 20 May | 49.7 | Rudolf Joseph von Thun † | Bishop of Seckau, Austria |
| 23 May | 72.3 | Vincenzo Maria da Silva, O.P. † | Bishop of Calvi Risorta, Italy |
| 26 May | 53.9 | Daniel de Francheville † | Bishop of Périgueux (Vesuna), France |
| Jun | 53.1 | Scipio Carocci (Carocius) † | Bishop of Acerno, Italy |
| 7 Jun | 64.4 | Benedetto Giacinto Sangermano † | Bishop of Nusco, Italy |
| 20 Jun | 87.4 | John Leyburn † | Vicar Apostolic of England (and Wales), Great Britain |
| 20 Jun | 77.4 | Francesco Pannocchieschi d’Elci † | Archbishop of Pisa, Italy |
| 20 Jun | 64.0 | Ippolito Vicentini † | Bishop of Rieti, Italy |
| 11 Aug | 76.6 | Ferdinando Bazan y Manriquez † | Archbishop of Palermo, Italy |
| 12 Aug | 69.8 | Pier Marino Sormani, O.F.M. Obs. † | Bishop of Vigevano, Italy |
| 13 Aug | 82.7 | Jobst Edmund von Brabeck † | Bishop of Hildesheim, Germany |
| 23 Aug | 63.5 | Ferdinand Schröffel von Schröffenheim † | Auxiliary Bishop of Olomouc (Olmütz), Czechia |
| Sep | | Paolo Airolo, C.R.M. † | Bishop of Carinola (Calina), Italy |
| 3 Sep | 85.6 | John O’Mollony † | Bishop of Limerick, Ireland |
| 12 Sep | 55.6 | Alfonso Basilio Ghetaldo, O.S.B. † | Bishop of Stagno (Ston), Croatia |
| 29 Sep | 70.7 | Ignazio de La Cerda (Della Zerda), O.S.A. † | Bishop of L’Aquila, Italy |
| 16 Oct | 82.7 | Francesco Casati † | Titular Archbishop of Trapezus |
| 17 Oct | 62.0 | François Genet † | Bishop of Vaison, France |
| 27 Oct | 71.8 | Ágoston Benkovich, O.S.P.P.E. † | Bishop of Oradea Mare {Gran Varadino, Nagyvárad}, Romania |
| 27 Oct | 75.8 | Niccolò Radulovich † | Cardinal, Archbishop of Chieti, Italy |
| Nov | 52.0 | Michelangelo Veraldi † | Bishop of Martirano (Martoranum), Italy |
| 2 Nov | 70.8 | Andrés de las Navas y Quevedo, O. de M. † | Bishop of Santiago de Guatemala |
| 3 Nov | 86.5 | Wojciech Izdebski † | Auxiliary Bishop of Vilnius, Lithuania |
| 4 Nov | 48.1 | Charles-Madeleine Frézeau de Frèzelière † | Bishop of La Rochelle, France |
| 28 Nov | 68.2 | Filippo Neri degli Altoviti † | Bishop of Fiesole, Italy |
| Dec | 73.9 | Giuseppe Acorrà † | Archbishop of Oristano, Italy |
| 8 Dec | 62.3 | Bartolomeo Riberi, O. de M. † | Bishop of Nicotera, Italy |
| 11 Dec | 57.4 | Giacomo Cantelmo † | Cardinal, Archbishop of Napoli {Naples}, Italy |
| 22 Dec | 75.9 | Luis de Lemos y Usategui, O.S.A. † | Bishop Emeritus of Concepción, Chile |
| 26 Dec | 65.9 | Giovanni Felice Bernabei, O.F.M. Conv. † | Vicar Apostolic |
| 31 Dec | 72.1 | Alfonso Pacella (Pacelli) † | Bishop of Muro Lucano, Italy |
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