| Date | Age | Bishop | Title |
| unknown | | Ambrosio de Córdoba, O.P. † | Bishop of Tropea, Italy |
| 5 Jan | | Francisco do Soveral, O.S.A. † | Bishop of Angola e Congo, Angola |
| 8 Feb | 55.9 | Juan Velasco Acevedo † | Bishop of Orense, Spain |
| 14 Mar | | Antonio González Acevedo † | Bishop of Coria, Spain |
| 31 Mar | 61.2 | Pedro Rosales Encio † | Bishop of Lugo, Spain |
| Apr | 30.3 | Diego de Guevara y Estrada † | Archbishop of Santo Domingo, Dominican Republic |
| 15 Apr | 46.8 | Luigi Caetani † | Cardinal, Archbishop Emeritus of Capua, Italy |
| 1 May | 58.3 | Cosimo de Torres † | Cardinal, Archbishop of Monreale, Italy |
| 27 May | | Gonzalo Chacón Velasco y Fajardo † | Bishop of Calahorra y La Calzada, Spain |
| 29 May | | Nikolaus Aliprandi von Thomasis † | Auxiliary Bishop of Passau, Germany |
| 30 Jul | 45.9 | Franz Graf von Hatzfeld † | Bishop of Würzburg, Germany |
| 29 Aug | | Antonio Guzmán Cornejo † | Bishop of Tui, Spain |
| 19 Nov | 69.7 | Giovanni (Giannettino) Doria † | Cardinal, Archbishop of Palermo, Italy |
| 4 Dec | 57.2 | Armand-Jean du Plessis de Richelieu † | Cardinal, Bishop Emeritus of Luçon, France |
| 25 Dec | 66.0 | Baltasar Navarro Arroytia † | Bishop of Tarazona, Spain |
| 28 Dec | 69.3 | Johannes Pelcking, O.F.M. † | Auxiliary Bishop of Paderborn, Germany |
| 28 Dec | 61.0 | Johannes Kaspar Stredele † | Auxiliary Bishop of Passau, Germany |
| 29 Dec | 84.0 | Melchor Rodríguez de Torres, O. de M. † | Auxiliary Bishop of Burgos, Spain |