| Date | Age | Bishop | Title |
| unknown | | Giovanni Battista Acquaviva † | Bishop of Nardò, Italy |
| unknown | | Pierre de Barrault † | Bishop of Lodève, France |
| unknown | | Camillo Campeggi, O.P. † | Bishop of Nepi e Sutri, Italy |
| unknown | | Gaspare Capris † | Bishop of Asti, Italy |
| unknown | | Marcello Dentice † | Bishop of Termoli, Italy |
| unknown | | Giacomo Framarini † | Bishop Emeritus of Polignano (Polinianum), Italy |
| unknown | | Francesco Guarini † | Bishop of Imola, Italy |
| unknown | | Terence O’Brien † | Bishop of Killaloe, Ireland |
| unknown | | Mateo Pinello † | Bishop of Cuzco, Peru |
| unknown | | Luigi Suppa, O.P. † | Bishop of Agrigento (Girgenti), Italy |
| unknown | | Guglielmo Tuttavilla † | Bishop of Sarno, Italy |
| unknown | | Leonhard Zittardus, O.P. † | Auxiliary Bishop of Mainz, Germany |
| 28 Jan | 53.3 | Gianantonio Capizucchi † | Cardinal, Bishop of Lodi, Italy |
| 2 Feb | | Lodovico (Luigi) Ardinghelli † | Bishop of Fossombrone, Italy |
| 12 Feb | 73.1 | Juan de los Barrios, O.F.M. † | Archbishop of Santafé en Nueva Granada, Colombia |
| 12 Mar | | Jorge de Coimbra † | Bishop of Ceuta, Spain |
| 28 Mar | | Bernard d’Elbène † | Bishop of Nimes, France |
| 28 Mar | | Giambattista Grossi † | Bishop of Reggio Emilia, Italy |
| 24 Apr | | Jacopo Nacchianti, O.P. † | Bishop of Chioggia, Italy |
| 24 May | | Juan Ayora † | Bishop of Oviedo, Spain |
| Aug | | Bernardino de Villalpando, C.R.S.A. † | Bishop of Guatemala (Santiago de Guatemala), Guatemala |
| 25 Aug | | Robert de Gontaut-Biron † | Bishop of Condom, France |
| 29 Aug | | François Bohier † | Bishop of Saint-Malo, France |
| 5 Sep | 69.7 | Edmund Bonner † | Bishop Emeritus of London, England, Great Britain |
| 19 Sep | 66.7 | Pedro de Ayala, O.F.M. † | Bishop of Guadalajara, Jalisco, México |
| 23 Sep | | Ettore Piscicelli † | Archbishop of Lanciano, Italy |
| 11 Oct | | Ambrogio Monticoli † | Bishop of Segni, Italy |