| Date | Age | Bishop | Title |
| unknown | 37.0 | Ferdinando Confalone † | Bishop of Nicastro, Italy |
| unknown | 44.0 | Giovanni Dominico Giaconi † | Bishop of Guardialfiera (Guardia), Italy |
| unknown | 55.0 | Giovanni Girardi, O.F.M. † | Bishop of Syros (e Milos), Greece |
| unknown | 48.0 | László Majthényi † | Bishop of Sirmio (Srijem; Sirmium), Croatia |
| unknown | 61.0 | Andrea Mastrillo † | Archbishop of Messina, Italy |
| unknown | 63.0 | Giulio Mattei † | Bishop of Bitetto, Italy |
| unknown | | Scipione Pasquali † | Bishop of Casale Monferrato, Italy |
| unknown | 57.0 | Marco Pasqualigo † | Bishop of Cefalonia e Zante, Greece |
| Jan | 49.0 | Roberto Roberti (-Vittori), O.P. † | Bishop of Tricarico, Italy |
| 3 Jan | 62.0 | Cyrus de Thiard de Bissy † | Bishop of Chalons-sur-Saône, France |
| 12 Jan | 50.0 | Jacques Martin † | Bishop Emeritus of Vannes, France |
| Feb | | Fausto Rebaglio † | Bishop of Sessa Aurunca, Italy |
| 10 Feb | 64.5 | Wawrzyniec Gembicki † | Archbishop of Gniezno, Poland |
| 18 Feb | 67.1 | Francisco Rodríguez, S.J. † | Archbishop of Cranganore (Angamala), India |
| 8 Mar | 52.1 | Manuel Afonso de Guerra † | Bishop of Santiago de Cabo Verde |
| 13 Mar | 47.1 | Matteo Priuli † | Cardinal, Cardinal-Priest of San Marco |
| 17 Mar | 58.2 | Antonio Caetani (Jr.) † | Cardinal, Archbishop of Capua, Italy |
| 31 Mar | 52.2 | Jan Kuczborski † | Bishop of Chelmno (Culma, Kulm), Poland |
| 1 Apr | 76.2 | Côme (Cosme) Clausse de Marchaumont † | Bishop of Chalons-sur-Marne, France |
| 7 Apr | 37.2 | Nikolaus von Wolkenstein † | Bishop of Chiemsee, Germany |
| 13 Apr | 71.2 | William Bishop † | Vicar Apostolic of England (and Wales), Great Britain |
| 17 Apr | 62.2 | Étienne Le Maingre de Boucicault, O.F.M. † | Bishop of Grasse, France |
| 24 Apr | | Paolo Emilio Filonardi † | Archbishop of Amalfi, Italy |
| 13 May | 56.0 | Alessandro d’Este † | Cardinal, Bishop of Reggio Emilia, Italy |
| 23 Jun | | François-Etienne Dulci, O.P. † | Archbishop of Avignon, France |
| 6 Jul | 42.2 | Ottavio Ridolfi † | Cardinal, Bishop of Agrigento (Girgenti), Italy |
| 9 Jul | 39.5 | Martin Kolsdorf † | Auxiliary Bishop of Wrocław (Breslau), Poland |
| 27 Jul | 74.5 | Ercole Vaccari † | Archbishop of Rossano, Italy |
| Aug | 66.5 | Gregorio de Alarcón, O.A.D. † | Bishop of Santiago de Cuba |
| 14 Aug | | David Kearney † | Archbishop of Cashel, Ireland |
| 15 Aug | | Stefano de Rosis † | Bishop of Gerace, Italy |
| 18 Aug | | Francisco de la Cámara y Raya, O.P. † | Bishop of Panamá |
| 30 Aug | 76.6 | Napoleone Comitoli † | Bishop of Perugia, Italy |
| 30 Aug | 62.6 | Plácido Tosantos Medina, O.S.B. † | Bishop of Zamora, Spain |
| Sep | | Diego Mardones, O.P. † | Bishop of Córdoba, Spain |
| 8 Sep | 64.6 | Paul Hurault de l’Hospital † | Archbishop of Aix, France |
| 9 Sep | 64.6 | Marc’Antonio de Dominis † | Archbishop Emeritus of Split (Spalato), Croatia |
| 9 Sep | 61.8 | Francesco Sforza † | Cardinal, Cardinal-Bishop of Porto e Santa Rufina |
| 14 Sep | 43.0 | Jean des Porcelets de Maillane † | Bishop of Toul, France |
| 8 Oct | 46.7 | Marcos Teixeira de Mendonça † | Bishop of São Salvador da Bahia de Todos os Santos, Brazil |
| 13 Oct | 53.7 | Simon Mascarenhas, O.F.M. † | Bishop of Angola e Congo |
| 1 Nov | | Antonio Bonfiglioli † | Bishop Emeritus of Carinola (Calina), Italy |
| 7 Nov | | Marcantonio Genovesi † | Bishop of Isernia, Italy |
| 17 Nov | 60.0 | Philibert François (Filiberto) Milliet de Faverges † | Archbishop of Torino {Turin}, Italy |
| 17 Nov | 58.8 | Fabrizio Verallo † | Cardinal, Bishop Emeritus of San Severo, Italy |
| 30 Nov | | Raffaele Inviziati † | Bishop Emeritus of Cefalonia e Zante, Greece |
| 7 Dec | 66.9 | Ottavio Viale † | Bishop of Saluzzo, Italy |
| 9 Dec | 73.9 | Tomás Cortés de Sangüesa † | Bishop of Teruel, Spain |
| 15 Dec | 71.1 | Jerónimo Bautista Lanuza, O.P. † | Bishop of Albarracin, Spain |
| 21 Dec | 70.9 | Francisco Esquivel † | Archbishop of Cagliari, Italy |
| 26 Dec | 34.3 | Charles de Habsburg (d’Autriche-Styrie) † | Bishop of Brixen {Bressanone}, Italy |