| Date | Age | Bishop | Title |
| unknown | 63.0 | Gian Giacomo Amati † | Bishop of Bisignano, Italy |
| unknown | | Jorge de Ataíde † | Bishop Emeritus of Viseu, Portugal |
| unknown | | Šimun Bratulić, O.S.P.P.E. † | Bishop of Zagreb (Agram), Croatia |
| unknown | | Nicolò Cannavera † | Bishop of Alghero, Italy |
| unknown | | Andrés Fernández de Córdoba y Carvajal † | Bishop of Badajoz, Spain |
| unknown | 48.0 | Livio Limatola † | Bishop of Bitetto, France |
| unknown | | Paolo Manara, O.P. † | Bishop of Acerno, Italy |
| unknown | | Agostino Quinzio, O.P. † | Bishop of Massa Lubrense, Italy |
| unknown | 41.0 | Raphael Riva (Ripa), O.P. † | Bishop of Chioggia, Italy |
| unknown | 55.0 | Giuseppe Saladino † | Bishop of Siracusa, Italy |
| unknown | 62.0 | Giovanni Sauli (Scali, Sacchi), O.P. † | Bishop of Aleria, France |
| Jan | | Jean Miraeus (Le Mire) † | Bishop of Antwerpen {Antwerp, Anvers}, Belgium |
| 1 Jan | | Miguel Ares Canaval † | Bishop of Orense, Spain |
| 6 Jan | 78.8 | St. Juan de Ribera † | Archbishop of Valencia, Spain |
| 10 Jan | | Francisco Arévalo de Zuaco † | Bishop of Gerona, Spain |
| 15 Jan | 51.0 | Gérard de Robin, O.S.A. † | Bishop of Lodève, France |
| 21 Jan | 73.1 | Mariano Pierbenedetti † | Cardinal, Cardinal-Bishop of Frascati |
| 24 Jan | 63.1 | Mateo Burgos Moraleja, O.F.M. † | Bishop of Sigüenza, Spain |
| 3 Feb | 58.6 | Ottaviano Paravicini † | Cardinal, Bishop Emeritus of Alessandria (della Paglia), Italy |
| 1 Apr | | Antonio Maria Graziani † | Bishop of Amelia, Italy |
| 3 Apr | | Vittorino Mansi, O.S.B. † | Bishop of Ariano, Italy |
| 6 Apr | 66.3 | Alessio Geromoaddi † | Bishop of Isernia, Italy |
| 7 Jun | 40.6 | Cornelius Gobelius † | Auxiliary Bishop of Mainz, Germany |
| 28 Jun | | Marcus Lyresius † | Auxiliary Bishop of Eichstätt, Germany |
| 5 Jul | 74.5 | Giovanni Fontana † | Bishop of Ferrara, Italy |
| 1 Aug | 64.5 | Juan Castro, O.S.A. † | Archbishop Emeritus of Santafé en Nueva Granada, Colombia |
| 5 Aug | 71.6 | Girolamo Bernerio, O.P. † | Cardinal, Bishop of Ascoli Piceno, Italy |
| 9 Aug | 69.8 | Domenico Pinelli (Sr.) † | Cardinal, Bishop Emeritus of Fermo, Italy |
| 28 Sep | 70.7 | Pedro Castro Nero † | Archbishop of Valencia, Spain |
| 22 Oct | | Diego González Samaniego † | Bishop of Mondoñedo, Spain |
| 21 Nov | | Gerolamo Vela † | Bishop of Larino, Italy |
| 28 Nov | 53.9 | Lanfranco Margotti † | Cardinal, Bishop of Viterbo e Tuscania, Italy |
| 4 Dec | 72.9 | Lorenzo Asensio Otaduy Avendaño † | Bishop of Avila, Spain |