| Date | Age | Bishop | Title |
| unknown | 39.0 | Giovanni Battista de Aquena † | Bishop of Bosa, Italy |
| unknown | | Martin Brenner † | Bishop of Seckau, Austria |
| unknown | 93.0 | Afonso de Castelo-Branco † | Bishop of Coimbra, Portugal |
| unknown | | Gaspare Cardoso, O.S.B. † | Bishop of Potenza, Italy |
| unknown | | Henri d’Escoubleau de Sourdis † | Bishop of Maillezais, France |
| unknown | | Girolamo Incontri † | Bishop of Sansepolcro (Borgo San Sepolcro), Italy |
| unknown | 51.0 | Giorgio Lazzari, O.P. † | Bishop of Minori, Italy |
| unknown | 47.0 | Vittorio Ragazzoni † | Archbishop of Zadar (Zara), Croatia |
| unknown | | Dionisio Reudio, O.F.M. † | Archbishop of Naxos, Greece |
| unknown | | Vincenzo Serafino † | Bishop of Teano, Italy |
| unknown | | Domingo Valderrama y Centeno, O.P. † | Bishop of La Paz, Bolivia |
| unknown | | Muzio Vitali † | Bishop of Vieste, Italy |
| 9 Jan | | Mario Sassi † | Archbishop of Rossano, Italy |
| 24 Mar | 60.2 | Alessandro Rossi † | Bishop of Parma, Italy |
| 2 May | 66.3 | François Buisseret † | Archbishop of Cambrai, France |
| 7 Jun | | Pedro Manrique, O.S.A. † | Archbishop of Zaragoza, Spain |
| 18 Aug | | Antonio de Cáceres, O.P. † | Bishop of Astorga, Spain |
| 23 Aug | 53.2 | François de Joyeuse † | Cardinal, Archbishop of Rouen, France |
| 19 Sep | 73.7 | Juan Alvarez de Caldas † | Bishop of Avila, Spain |
| 23 Sep | 67.7 | Wojciech Baranowski † | Archbishop of Gniezno, Poland |
| 6 Oct | 64.9 | Carlo Bescapè, B. † | Bishop of Novara, Italy |
| 12 Oct | | Marco Antonio Salomone † | Bishop Emeritus of Sora, Italy |
| 16 Oct | 49.8 | Ferenc Forgách de Ghymes † | Cardinal, Archbishop of Esztergom, Hungary |
| 22 Oct | | Benedykt Woyna (Wojna) † | Bishop of Vilnius, Lithuania |
| 16 Nov | 47.5 | Franciszek Ursinus † | Auxiliary Bishop of Wrocław (Breslau), Poland |
| 17 Nov | | Antonio Idiáquez Manrique † | Bishop of Segovia, Spain |
| 30 Nov | | Francisco de la Cueva, O.S.A. † | Bishop of Oviedo, Spain |
| 2 Dec | 71.9 | Alonso González Aguilar † | Bishop of León, Spain |
| 3 Dec | 59.3 | Carlo Conti † | Cardinal, Bishop of Ancona e Numana, Italy |
| 19 Dec | 51.0 | Juan de las Cabezas Altamirano † | Bishop of Arequipa, Peru |
| 20 Dec | | Berenguer Bardaxi Alagón y Espés, O.F.M. † | Bishop of Huesca, Spain |
| 22 Dec | | Diego Ordóñez, O.F.M. † | Bishop of Salamanca, Spain |