| Date | Age | Bishop | Title |
| unknown | | Ińigo de Avalos, O.S.B. † | Bishop of Aquino, Italy |
| unknown | | Giovanni Antonio Gallo † | Bishop of Calvi Risorta, Italy |
| unknown | | Luis Gómez † | Bishop of Sarno, Italy |
| unknown | | Antonio Lupicino † | Bishop Emeritus of Bisceglie, Italy |
| unknown | | Marco Antonio Marzolinus † | Bishop of Guardialfiera (Guardia), Italy |
| unknown | | Francisco Mendoza † | Bishop of Jaén, Spain |
| unknown | | Gianfrancesco Ugoni † | Bishop of Famagusta, Cyprus |
| unknown | 53.0 | Vicente de Valverde, O.P. † | Bishop of Panamá |
| 2 Jan | 67.0 | Bonifacio Ferrero † | Cardinal, Cardinal-Bishop of Porto e Santa Rufina |
| 21 Jan | | Francesco Minerbetti † | Bishop Emeritus of Arezzo, Italy |
| 6 Feb | | Diego Ribera de Toledo † | Bishop of Segovia, Spain |
| 15 Apr | 65.1 | Christoph von Stadion † | Bishop of Augsburg, Germany |
| 2 May | | Angelo Archilegi † | Bishop of Assisi, Italy |
| 11 May | | Francesco Guastaferro † | Bishop of Sessa Aurunca, Italy |
| 27 Jun | | Filippo Trivulzio † | Archbishop of Dubrovnik (Ragusa), Croatia |
| 19 Jul | 78.5 | Berthold Pürstinger † | Bishop Emeritus of Chiemsee, Germany |
| 7 Aug | | Jean Le Veneur † | Cardinal, Bishop Emeritus of Lisieux, France |
| 17 Aug | 66.6 | Antonio Sanseverino, O.S.Io.Hieros. † | Cardinal, Archbishop of Taranto, Italy |
| 26 Sep | 65.7 | Francesco Cornaro (Sr.) † | Cardinal, Cardinal-Bishop of Palestrina |
| 25 Nov | 58.9 | Augustin Mair, C.R.S.A. † | Auxiliary Bishop of Würzburg, Germany |
| 27 Nov | | Girolamo Grimaldi † | Cardinal, Administrator of Albenga, Italy |
| Dec | | Alberto Pascaleo, O.P. † | Bishop of Chioggia, Italy |
| 30 Dec | 49.0 | Giovanni Matteo Giberti † | Bishop of Verona, Italy |