| Date | Age | Bishop | Title |
| unknown | | Alessandro Argoli † | Bishop of Terracina, Priverno e Sezze, Italy |
| unknown | | Trifone Bisanti † | Bishop of Kotor (Cattaro), Montenegro |
| unknown | | Foucault de Bonneval † | Bishop of Périgueux (Vesuna), France |
| unknown | | Carlo Borromeo † | Bishop of Pozzuoli, Italy |
| unknown | | Nicola Bruni † | Bishop of Milos (Melos), Greece |
| unknown | | Pellegrino Cibo de Turcilla † | Bishop of Gallipoli, Italy |
| unknown | | Francesco Erulli † | Bishop of Spoleto, Italy |
| unknown | | János Eszéki † | Bishop of Pécs, Hungary |
| unknown | 77.0 | Jan Latalski † | Archbishop of Gniezno, Poland |
| unknown | | Giuseppe de Montanaris, O.F.M. † | Archbishop of Naxos, Greece |
| unknown | | Aleksander Myszczynski † | Auxiliary Bishop of Włocławek (Kujawy, Kalisze), Poland |
| unknown | | Roger O’Moleyn † | Bishop of Ardagh (and Clonmacnois), Ireland |
| unknown | | Sixtus Signati † | Bishop of Trevico, Italy |
| unknown | | Francisco Solís † | Bishop of Drivasto (Drivost), Albania |
| unknown | | Georges Stemagu † | Archbishop of Durrës (Durazzo), Albania |
| unknown | 46.0 | Leonardo Tornabuoni † | Bishop of Ajaccio, France |
| unknown | | Juan de Urteaga, O.S.H. † | Bishop-Elect of Chiapas (Ciudad Real de Chiapas), México |
| unknown | | Antonio Venanzi (de Spello) † | Bishop of Jesi, Italy |
| unknown | | Bernardino Conti (Visconti) † | Bishop of Alatri, Italy |
| unknown | | Nicola Volpe † | Bishop of Sant’Angelo dei Lombardi e Bisaccia, Italy |
| unknown | | Bernard Wilczek † | Archbishop of Lviv, Ukraine |
| 1 Jan | 60.0 | Baltasar del Río † | Bishop of Scala, Italy |
| 14 Jan | | Giacomo Narducci † | Bishop of Urbino, Italy |
| 22 Feb | | Jacques d’Albret † | Bishop of Nevers, France |
| 30 Mar | 72.2 | Matthäus Lang von Wellenburg † | Cardinal, Archbishop of Salzburg, Austria |
| 12 Apr | | Jean Olivier, O.S.B. † | Bishop of Angers, France |
| 16 Apr | 30.9 | Afonso de Portugal † | Cardinal, Archbishop of Lisboa, Portugal |
| 17 Apr | 69.2 | Stanislav Thurzó † | Bishop of Olomouc (Olmütz), Czechia |
| 3 May | | Pedro Flores † | Bishop of Gaeta, Italy |
| 30 May | | Luigi Platamone † | Bishop of Siracusa, Italy |
| 16 Jun | 74.4 | Konrad von Thüngen † | Bishop of Würzburg, Germany |
| Jul | | Jean de La Motte † | Coadjutor Bishop of Quimper, France |
| Jul | | Claude de Rohan † | Bishop of Quimper, France |
| 22 Jul | 48.5 | Johann von Metzenhausen † | Archbishop of Trier, Germany |
| 12 Aug | | John Holt † | Titular Bishop of Lydda |
| 13 Aug | | Anton Braun † | Auxiliary Bishop of Eichstätt, Germany |
| 23 Aug | 47.6 | Charles de Hémard de Denonville † | Cardinal, Bishop of Mâcon, France |
| 28 Aug | | Ugo Rangone † | Bishop of Reggio Emilia, Italy |
| 30 Aug | | Augustin Gabel (Ranel), O.S.A. † | Auxiliary Bishop of Cambrai, France |
| Sep | | Donald O’Beachan, O.F.M. † | Bishop-Elect of Kildare, Ireland |
| 8 Sep | | Juan de Arteaga y Avendaño † | Bishop-Elect of Chiapas (Ciudad Real de Chiapas), México |
| 16 Sep | 21.7 | Enrique de Borja y Aragón † | Cardinal, Bishop-Elect of Squillace, Italy |
| 18 Sep | 65.1 | Juan (Johannes) de Witte Hoos (Ubite), O.P. † | Bishop Emeritus of Santiago de Cuba |
| Oct | | Louis McNamara, O.F.M. † | Bishop-Elect of Cork and Cloyne, Ireland |
| 5 Oct | | Giovanni dei Tagliacozzi † | Bishop of Chioggia, Italy |
| 6 Oct | | Francisco de Mendavia, O.S.H. † | Bishop of Nicaragua |
| 7 Oct | 40.7 | Pedro Fernández Manrique † | Cardinal, Bishop of Córdoba, Spain |
| 7 Oct | | Cristoforo Giacobazzi † | Cardinal, Bishop of Cassano all’Jonio, Italy |
| 5 Nov | 65.8 | Francisco de los Ángeles (Enrique) Quiñones, O.F.M. Obs. † | Cardinal, Former Administrator of Acerno, Italy |
| 18 Dec | 60.3 | Cesare Riario † | Administrator of Málaga, Spain |