| Date | Age | Bishop | Title |
| unknown | | Alfonso Alvarez Guerrero † | Bishop of Monopoli, Italy |
| unknown | | Gregorio Cruz, O.P. † | Bishop of Martirano (Martoranum), Italy |
| unknown | | Sisto Diuzioli, C.R.L. † | Bishop of Carinola (Calina), Italy |
| unknown | | Cesare de’ Giacomelli † | Bishop of Belcastro, Italy |
| unknown | 79.0 | Antonio Lauro † | Bishop of Castellammare di Stabia, Italy |
| unknown | | Thomas Leverus † | Bishop of Kildare, Ireland |
| unknown | | Antonio Lorenzini † | Bishop of Assisi, Italy |
| unknown | | Niccolň Francesco Missanelli † | Bishop of Policastro, Italy |
| unknown | | Pedro Narro, O.S.B. † | Archbishop of Oristano, Italy |
| unknown | | Antioco Nin † | Bishop of Alghero, 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 Serra, O.S.A. † | Bishop of Bosa, Italy |
| unknown | | Giulio Stauriano, O.P. † | Bishop of Bova, Italy |
| unknown | | Fernando de Tavora, O.P. † | Bishop Emeritus of Funchal, Portugal |
| unknown | 73.0 | Alfonso Tornabuoni † | Bishop Emeritus of Sansepolcro (Borgo San Sepolcro), Italy |
| unknown | | Danijel Vocacio (Vocazio, Vocatius), O.F.M. † | Bishop of Muro Lucano, Italy |
| unknown | | Jurja (Georgius/Giorgio) Živković (Xiwowich/Sincout), O.F.M. † | Bishop of Senj, Croatia |
| 4 Jan | | William Walsh, O. Cist. † | Bishop Emeritus of Meath, Ireland |
| 23 Jan | 52.2 | Nicolas de Lorraine † | Former Bishop-Elect of Verdun, France |
| 1 Feb | 71.0 | Rodrigo de Vadillo, O.S.B. † | Bishop of Cefalů, Italy |
| 4 Feb | 72.0 | John de Hangest † | Bishop of Noyon, France |
| 9 Feb | 86.1 | 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 |
| 17 Mar | 73.2 | Gerard d’Hamericourt, O.S.B. † | Bishop of Saint-Omer, France |
| 19 Mar | 65.2 | Martín Rojas de Portalrubio, O.S.Io.Hieros. † | Bishop of Malta |
| 23 Apr | 80.3 | Pierre Dančs † | Bishop of Lavaur, France |
| 23 Apr | 80.3 | Cherubino Lavosio, O.S.A. † | Bishop of Telese o Cerreto Sannita, Italy |
| 4 May | | Pierre Ragueneau † | Bishop Emeritus of Marseille, France |
| 10 May | | Johannes Mahusius, O.F.M. Obs. † | Bishop Emeritus of Deventer, Netherlands |
| 26 May | | Aegidius (Gilles) Van den Bergh (de Monte), O.F.M. Obs. † | Bishop of Deventer, Netherlands |
| 18 Jun | | Nicolň Ormanetto † | Bishop of Padova {Padua}, Italy |
| 25 Jun | | Marco Loredan † | Bishop of Nona (Nin), Croatia |
| 26 Jun | | Bartolomeo Giugni (Junius) † | Archbishop of Pisa, Italy |
| 8 Jul | 58.0 | Veit von Würtzburg † | Bishop of Bamberg, Germany |
| 9 Jul | 60.5 | Andrés de Oviedo, S.J. † | Patriarch of Ethiopia |
| 23 Jul | 73.4 | Scipione Rebiba † | Cardinal, Cardinal-Bishop of Sabina |
| 6 Aug | | William Gordon † | Bishop of Aberdeen, Scotland, Great Britain |
| 28 Aug | | Francisco Andrés de Carvajal, O.F.M. Obs. † | 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 | 65.1 | Diego de Covarrubias y Leiva † | Bishop of Cuenca, Spain |
| 8 Oct | | Juan Trullo, O.S.A. † | Bishop-Elect of Albarracin, Spain |
| 22 Oct | 51.8 | Sebastiano Ferrero Fieschi † | Bishop Emeritus of Ivrea, Italy |
| 23 Oct | | Jean de Morvilliers † | Bishop Emeritus of Orléans, France |
| 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 | 58.9 | Antonio Manrique Valencia † | Bishop of Pamplona, Spain |
| 22 Dec | 68.3 | Bernardo de Fresneda, O.F.M. Obs. † | Archbishop of Zaragoza, Spain |