| Date | Age | Bishop | Title |
| unknown | | Pietro de Affati † | Bishop of Minori, Italy |
| unknown | | Pietro Bovio † | Bishop of Ostuni, Italy |
| unknown | | Reinoldus Buschoveden † | Bishop Emeritus of Ösell (Oesell) [Saare-Lääne], Estonia |
| unknown | | Giambattista Caracciolo Pisquizi † | Bishop of Venafro, Italy |
| unknown | | Antonio Codina, O.S.A. † | Auxiliary Bishop of Barcelona, Spain |
| unknown | | Jan Drohojowski † | Bishop of Włocławek (Kujawy, Kalisze), Poland |
| unknown | | Dominique du Gabre † | Bishop of Lodève, France |
| unknown | | Agostino Gonzaga † | Archbishop of Reggio Calabria, Italy |
| unknown | | Giovanni Maria Pisauro † | Bishop of Paphos, Cyprus |
| unknown | | Filippo Serragli, O.S.B. † | Bishop of Alife, Italy |
| unknown | | Giovanni Lucio Stafileo † | Bishop of Šibenik (Knin), Croatia |
| 19 Jan | 54.0 | Antonio de Fonseca, O.S.A. † | Bishop Emeritus of Pamplona, Spain |
| 13 Mar | 64.2 | Louis de Bourbon de Vendôme (II) † | Cardinal, Bishop Emeritus of Laon, France |
| May | | Pietro Gazino † | Bishop of Aosta, Italy |
| 4 May | 53.3 | Jorge de Austria † | Bishop of Liège, Belgium |
| 31 May | 71.4 | Juan Martínez Silíceo † | Cardinal, Archbishop of Toledo, Spain |
| 7 Jun | 57.4 | Jacques d’Annebault † | Cardinal, Bishop of Lisieux, France |
| 21 Jul | | Heinrich Kurz † | Auxiliary Bishop of Passau, Germany |
| 10 Aug | 61.6 | Fabio Mignanelii † | Cardinal, Bishop Emeritus of Lucera, Italy |
| 15 Sep | 69.2 | Juan Álvarez de Toledo, O.P. † | Cardinal, Archbishop of Santiago de Compostela, Spain |
| 22 Sep | | Robert Warton (Parfew) † | Bishop of Hereford, England, Great Britain |
| 27 Sep | 52.7 | Leopoldo de Austria † | Bishop of Córdoba, Spain |
| 6 Oct | | John Salcot (Capon), O. Carm. † | Bishop Emeritus of Bangor, Wales, Great Britain |
| 19 Oct | | Martín Sarmiento de Hojacastro, O.F.M. † | Bishop of Tlaxcala, México |
| 24 Dec | 50.2 | Durante Duranti † | Cardinal, Bishop of Brescia, Italy |