| Date | Age | Bishop | Title |
| unknown | 51.0 | Milanus Benzio † | Bishop of Canea (Cydonia, Egée), Greece |
| unknown | | Gerolamo Bollini, O.S.B. † | Bishop of Isernia, Italy |
| unknown | 54.0 | Francisco Camps y Moles † | Bishop of Bosa, Italy |
| unknown | 50.8 | Ascanio Cassiano † | Bishop of Andria, Italy |
| unknown | | Giovanni Camponeschi, O.F.M. † | Bishop of Mottola (Motula), Italy |
| unknown | 82.0 | Giovanni Battista de Paola † | Bishop of Bisignano, Italy |
| unknown | | (Giovanni) Aloysius Galli † | Bishop of Ancona e Numana, Italy |
| unknown | | Andreas Lanfranchi, C.R. † | Bishop of Ugento, Italy |
| unknown | | Jan Leszczyński † | Bishop of Chelmno (Culma, Kulm), Poland |
| unknown | 57.0 | Gaspare Litago † | Archbishop of Sassari, Italy |
| unknown | | Antonio de Mariz Loureiro † | Prelate of São Sebastião do Rio de Janeiro, Brazil |
| unknown | 60.0 | Paul Posilovich, O.F.M. † | Bishop of Duvno, Bosnia and Herzegovina |
| unknown | | Jan Rakowski † | Auxiliary Bishop of Chelmno (Culma, Kulm), Poland |
| unknown | | Urbano Zambotti, C.R. † | Bishop of Montemarano, Italy |
| 4 Jan | 55.0 | Ferdinando Sanchez de Cuellar, O.S.A. † | Bishop of Agrigento (Girgenti), Italy |
| 8 Feb | 74.9 | Bartolomé Santos de Risoba † | Bishop of Sigüenza, Spain |
| 12 Feb | 57.1 | Pietro Rota † | Bishop of Lucca, Italy |
| 13 Feb | 69.1 | Raffaele Schiattini † | Archbishop of Naxos, Greece |
| 6 Mar | | Modesto Gavazzi, O.F.M. Conv. † | Archbishop of Chieti, Italy |
| 10 Mar | 67.1 | Berthold Nihus † | Auxiliary Bishop of Mainz, Germany |
| 13 Apr | 79.3 | Antonio Valdés Herrera † | Bishop of Córdoba, Spain |
| May | | Pietro Paolo Russo † | Bishop of Nusco, Italy |
| 15 May | 49.4 | Francesco Angelo Rapaccioli † | Cardinal, Bishop Emeritus of Terni, Italy |
| 25 May | 61.4 | Alessandro Bichi † | Cardinal, Bishop of Carpentras, France |
| 28 May | 81.4 | Pierre Antoine Triest † | Bishop of Gent {Ghent, Gand}, Belgium |
| 17 Jun | | Stanisław Pstrokoński † | Bishop of Chełm, Poland |
| Jul | | Juan Pérez Delgado † | Archbishop of Burgos, Spain |
| Jul | 46.5 | Hieronim Wladysław Sanguszko † | Bishop of Smoleńsk, Poland |
| 14 Jul | | Piotr Gembicki † | Bishop of Kraków, Poland |
| Aug | 42.3 | Giovanni Battista Federici † | Bishop of Sagone (Sagona), France |
| Aug | | Giuseppe Lomellini, O.S.B. † | Bishop of Bisceglie, Italy |
| Aug | | Giovanni Francesco Passionei † | Bishop of Pesaro, Italy |
| 25 Aug | 75.5 | Pedro Tapia, O.P. † | Archbishop of Sevilla {Seville}, Spain |
| Oct | | Dionigi Carta-Senes, O.F.M. † | Bishop of Alghero, Italy |
| Oct | | Pietro Paolo Medici † | Bishop of Alife, Italy |
| 4 Oct | 64.7 | Maurizio di Savoia † | |
| 21 Oct | 77.8 | Stefano Solis Castelblanco, C.R. † | Bishop of Sarno, Italy |
| 3 Dec | 69.9 | Francisco Guerra, O.F.M. † | Bishop of Plasencia, Spain |
| 23 Dec | | Juan de Montiel † | Bishop of Santiago de Cuba |
| 29 Dec | 58.0 | Hieronymus Gradenigo † | Patriarch of Aquileia, Italy |