| Date | Age | Bishop | Title |
|---|
| unknown | 46.0 | Andrea Aloisi † | Bishop of Montemarano, Italy |
| unknown | | Aldigerio Biliotti † | Titular Bishop of Caesarea in Palaestina |
| unknown | | Ricomanni Buffalini † | Bishop of Venafro, Italy |
| unknown | | Luigi Buoni † | Bishop of Vieste, Italy |
| unknown | | Cesare Carpano † | Bishop of Muro Lucano, Italy |
| unknown | | Fabio Cerri dell’Anguillara † | Bishop of Rimini, Italy |
| unknown | 30.0 | Scipione Colonna † | Bishop of Rieti, Italy |
| unknown | | Teseo de Cupis † | Bishop of Macerata, Italy |
| unknown | | Antonio de Corrago † | Bishop of Aquino, Italy |
| unknown | | Antonio Ercolani † | Bishop Emeritus of Cariati e Cerenzia, Italy |
| unknown | | Agostino Fieschi † | Bishop of Sagone (Sagona), France |
| unknown | 84.0 | Domenico Giacobazzi † | Cardinal, Bishop of Nocera de’ Pagani, Italy |
| unknown | | Eusebio de Granito, O.S.M. † | Bishop of Capri, Italy |
| unknown | | Guido Guidone † | Bishop of Mottola (Motula), Italy |
| unknown | | Godescalco de La Palata † | Bishop of Ravello, Italy |
| unknown | 29.0 | Louis de Lorraine † | Former Bishop-Elect of Verdun, France |
| unknown | | Giacomo de Mantova, O.P. † | Bishop of Lesina, Italy |
| unknown | | Louis Mendez, O.S.B. † | Auxiliary Bishop of Palencia, Spain |
| unknown | 37.0 | Cosme Pistacchio † | Bishop of Bitetto, Italy |
| unknown | 34.0 | Marcello Planca † | Bishop of Giovinazzo, Italy |
| unknown | | Tommaso Giovanni Riario † | Bishop of Savona, Italy |
| unknown | | Antonio Sassolino, O.F.M. Conv. † | Bishop of Minervino Murge, Italy |
| unknown | 35.0 | Filippo Sauli † | Bishop of Brugnato, Italy |
| unknown | | Giovanni Antonio Scotti † | Bishop of Anglona, Italy |
| unknown | | Giovanni dei Tagliacozzi † | Archbishop of Bar (Antivari), Montenegro |
| unknown | | Carlo Urríes † | Bishop of Malta |
| unknown | | Gian Domenico de Zazi † | Bishop of Tortona, Italy |
| 8 Jan | 57.4 | Francesco Armellini Pantalassi de’ Medici † | Cardinal, Archbishop of Taranto, Italy |
| 24 Jan | | Gilberto Sanilio (Senilis) † | Bishop Emeritus of Rapolla, Italy |
| 23 Mar | | Cristoforo Numai, O.F.M. Obs. † | Cardinal, Administrator of Alatri, Italy |
| 28 Mar | | Richard † | Auxiliary Bishop of Durham, England, Great Britain |
| 10 Apr | | Conrad de Heyden, O. Carm. † | Auxiliary Bishop of Metz, France |
| 23 May | | Giambattista Bragadin † | Bishop of Adria, Italy |
| 10 Jun | 68.4 | Paride de Grassis † | Bishop of Pesaro, Italy |
| 21 Jun | 68.4 | Pedro Ramírez de Alba, O.S.H. † | Archbishop of Granada, Spain |
| 30 Jun | | Charles de Hangest † | Bishop Emeritus of Noyon, France |
| 19 Jul | 59.5 | Giacomo Pasi † | Bishop of Faenza, Italy |
| 22 Jul | | Giovanni Stafileo † | Bishop of Šibenik (Knin), Croatia |
| Aug | 68.5 | Girolamo d’Ippolito, O.P. † | Archbishop of Taranto, Italy |
| Aug | | Ambrogio Talento † | Bishop of Asti, Italy |
| 3 Aug | | Hugh Inge, O.P. † | Archbishop of Dublin, Ireland |
| Sep | 48.6 | Pietro Andrea Gambari † | Bishop of Faenza, Italy |
| 14 Sep | 80.7 | Richard Fox † | Bishop of Winchester, England, Great Britain |
| 30 Sep | | Jan Van Het Velde de Campo, O. Carm. † | Auxiliary Bishop of Utrecht, Netherlands |
| 9 Oct | | Aymar de Gouffier, O.S.B. † | Bishop of Albi, France |
| 23 Oct | 52.8 | Francisco Ruiz, O.F.M. † | Bishop of Ávila, Spain |
| 19 Nov | | Thomas Du Prat † | Bishop of Clermont, France |
| 19 Dec | | Antonio Scaglioni † | Bishop of Aversa, Italy |
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