| Date | Age | Bishop | Title |
| unknown | | Andrea Belloni † | Bishop of Massa Lubrense, Italy |
| unknown | | Gregorio Cruz, O.P. † | Bishop of Martirano (Martoranum), Italy |
| unknown | | Sisto Diuzioli † | Bishop of Carinola (Calina), Italy |
| unknown | | Cesare de’ Giacomelli † | Bishop of Belcastro, Italy |
| unknown | | Antonio Lauro † | Bishop of Castellammare di Stabia, Italy |
| unknown | | Antonio Lorenzini † | Bishop of Assisi, Italy |
| unknown | | Niccolň Francesco Missanelli † | Bishop of Policastro, Italy |
| unknown | | Pedro Narro † | Archbishop of Oristano, Italy |
| unknown | | Giovanni Oliva † | Archbishop of Chieti, Italy |
| unknown | | Francesco Perignani † | Bishop of Cortona, Italy |
| unknown | | Juan Ramírez Zapata de Cárdenas † | Bishop of Palencia, Spain |
| unknown | | Juan Sena, O.S.A. † | Bishop of Bosa, Italy |
| unknown | | Fernando de Tavora, O.P. † | Bishop Emeritus of Funchal, Portugal |
| unknown | | Daniele Vocazio, O.F.M. † | Bishop of Muro Lucano, Italy |
| 18 Jan | | Nicolň Ormanetto † | Bishop of Padova {Padua}, Italy |
| 9 Feb | | Ambrogio Salvio, O.P. † | Bishop of Nardň, Italy |
| 25 Feb | | Alfonso Rossetti † | Bishop of Ferrara, Italy |
| 16 Mar | 51.9 | Franciszek Krasiński † | Bishop of Kraków, Poland |
| 19 Mar | 65.2 | Martín Rojas de Portalrubio, O.S.Io.Hieros. † | Bishop of Malta |
| 23 Apr | | Pierre Dančs † | Bishop of Lavaur, France |
| 23 Apr | | Cherubino Lavosio, O.S.A. † | Bishop of Telese o Cerreto Sannita, Italy |
| 10 May | | Egidio de Monte, O.F.M. † | Bishop of Deventer, Netherlands |
| 25 Jun | | Marco Loredan † | Bishop of Nona (Nin), Croatia |
| 8 Jul | 58.1 | Veit von Würtzburg † | Bishop of Bamberg, Germany |
| 9 Jul | 60.5 | Andrés Oviedo, S.J. † | Bishop of Foreign Diocese |
| 23 Jul | 73.5 | Scipione Rebiba † | Cardinal, Cardinal-Bishop of Sabina |
| 28 Aug | | Francisco Andrés de Carvajal, O.F.M. † | Archbishop of Santo Domingo, Dominican Republic |
| 9 Sep | | Dionisio de Santos, O.P. † | Bishop of Cartagena, Colombia |
| 16 Sep | | Johannes Kridt † | Auxiliary Bishop of Münster, Germany |
| 27 Sep | 65.2 | Diego de Covarrubias y Leiva † | Bishop of Cuenca, Spain |
| 28 Oct | | Francisco Pérez † | Archbishop of Cagliari, Italy |
| 2 Nov | 45.8 | Innocenzo Ciocchi del Monte † | Cardinal, Cardinal-Deacon of Santa Maria in Via Lata |
| Dec | | Juan Méndez de Villafranca, O.P. † | Bishop of Santa Marta, Colombia |
| 14 Dec | | Giambattista Milanese † | Bishop of Marsi, Italy |
| 19 Dec | 59.0 | Antonio Manrique Valencia † | Bishop of Pamplona, Spain |
| 22 Dec | 68.3 | Bernardo de Fresneda, O.F.M. † | Archbishop of Zaragoza, Spain |