| Date | Age | Bishop | Title |
| unknown | 36.0 | Gerolamo Acciabianca † | Bishop of Nusco, Italy |
| unknown | | David Arnot, O.S.A. † | Bishop Emeritus of Whithorn-Galloway, Scotland, Great Britain |
| unknown | | Bartolomeo Averoldi † | Bishop of Rethymo (Calamona), Greece |
| unknown | | Silvestro Benedetti † | Bishop of Luni e Sarzana, Italy |
| unknown | | Vincenzo Boccaferro, O.S.B. † | Bishop of Marsico Nuovo, Italy |
| unknown | | Galcerán Cassanyach, O. Carm. † | Auxiliary Bishop of Mallorca, Spain |
| unknown | | Bartolomeo Cesi † | Bishop of Narni, Italy |
| unknown | | Giuliano Cibo (Cybo) † | Bishop of Agrigento (Girgenti), Italy |
| unknown | | Guido de’ Medici † | Archbishop of Chieti, Italy |
| unknown | | Simeone de’ Vernacoli † | Bishop of Pozzuoli, Italy |
| unknown | | Vito Ferrato † | Bishop of Mottola (Motula), Italy |
| unknown | | Bernardo Gentile, O.P. † | Bishop of Bosa, Italy |
| unknown | | Hermolaus de Hermolais, O.F.M. Obs. † | Bishop-Elect of Modruš, Croatia |
| unknown | | Höskuld Höskuldsson † | Bishop of Stavanger, Norway |
| unknown | 20.0 | Giulio Mastrogiudice † | Bishop of Vulturara e Montecorvino, Italy |
| unknown | | Antoine de Medio † | Bishop of Syros (e Milos), Greece |
| unknown | | Angelo Pappacoda † | Bishop of Martirano (Martoranum), Italy |
| unknown | 38.0 | Pietro Petrucci † | Bishop of Bertinoro, Italy |
| unknown | | Giannotto Pucci † | Bishop of Melfi e Rapolla, Italy |
| unknown | | Jaime de Rich, O.S.B. † | Bishop of Elne, France |
| unknown | | Gyorgy Suliok † | Bishop of Pécs, Hungary |
| unknown | | Louis de Tenodoro (Tonneriae) † | Bishop Emeritus of Poitiers, France |
| unknown | | Stefan Tschugli, O.P. † | Auxiliary Bishop of Chur, Switzerland |
| unknown | | Tamás Zalaházi † | Bishop of Eger, Hungary |
| unknown | | Michele Zono † | Bishop of Kisamos (Cisamo), Greece |
| 1 Jan | | Jens Andersen Beldenak † | Bishop Emeritus of Odense, Denmark |
| 20 Jan | 43.4 | Andrea Matteo Palmieri † | Cardinal, Administrator of Policastro, Italy |
| 12 Feb | | Pedro González Manso † | Bishop of Osma, Spain |
| 17 Apr | 67.2 | Antoine Dubois † | Bishop of Béziers, France |
| 1 May | 87.3 | Guarino Favorino, O.S.B. † | Bishop Emeritus of Nocera Umbra, Italy |
| 10 May | 54.8 | Andrzej Krzycki † | Archbishop of Gniezno, Poland |
| 19 Jun | | John Kite (Kyte) † | Bishop of Carlisle, England, Great Britain |
| 24 Jun | | Mario Maffei † | Bishop of Cavaillon, France |
| 1 Jul | 66.5 | Maurycy Ferber † | Bishop of Warmia (Ermland), Poland |
| 27 Jul | | Pierre van den Hende, O.S.A. † | Auxiliary Bishop of Ličge, Belgium |
| 5 Aug | 56.5 | Paolo Emilio Cesi † | Cardinal, Cardinal-Deacon of Sant’Eustachio |
| 6 Aug | 13.5 | Rodrigo Luis de Borja y de Castro-Pinós † | Cardinal, Cardinal-Deacon of San Nicola in Carcere |
| 11 Aug | 77.6 | Diego Ramírez de Villaescua de Haro † | Bishop of Cuenca, Spain |
| 15 Aug | | Paolo Alessandri degli Strabuzzi † | Bishop of Montefeltro, Italy |
| 28 Aug | 71.6 | Philippe de Lévis † | Bishop of Mirepoix, France |
| Sep | | Gregorio Magalotti † | Bishop of Chiusi, Italy |
| 7 Sep | 65.0 | Nikolaus von Schönberg, O.P. † | Cardinal, Archbishop Emeritus of Capua, Italy |
| 22 Sep | 24.1 | Cosimo Gheri † | Administrator of Fano, Italy |
| 13 Oct | 67.7 | Johann von Schleinitz † | Bishop of Meißen (Meissen), Germany |
| 18 Oct | 55.7 | Agostino Spínola † | Cardinal, Administrator of Savona, Italy |
| 1 Nov | 67.8 | Jean Dupin (de Pins) † | Bishop of Rieux, France |
| 9 Nov | | Quirin Op dem Veld von Willich † | Auxiliary Bishop of Köln {Cologne}, Germany |
| 13 Nov | | Antonio La Legname † | Archbishop of Messina, Italy |
| 16 Nov | | Antoine de Grigneaux † | Bishop of Tréguier, France |
| 21 Nov | 62.1 | Giovanni Piccolomini † | Cardinal, Archbishop Emeritus of Siena, Italy |
| 2 Dec | 65.9 | Jan Karnkowski † | Bishop of Włocławek (Kujawy, Kalisze), Poland |
| 21 Dec | | Alexander Stewart † | Bishop of Moray, Scotland, Great Britain |