| Date | Age | Bishop | Title |
| unknown | | Bernardo de’ Arimondi † | Archbishop of Genova, Italy |
| unknown | | Bo † | Bishop of Linköping, Sweden |
| unknown | | Diodato , O.P. † | Bishop of Mileto, Italy |
| unknown | | Guglielmo † | Bishop of Ferrara, Italy |
| unknown | | Kettil † | Bishop of Åbo, Finland |
| unknown | | Juan de Luna † | Archbishop of Riga, Latvia |
| unknown | | Henri de Murs † | Bishop of Thérouanne, France |
| unknown | | Pasquale † | Bishop of Monopoli, Italy |
| unknown | | Pietro † | Bishop of Capaccio, Italy |
| unknown | | Alvino de Portis † | Bishop of Trieste, Italy |
| unknown | | Jacques Sérène † | Archbishop of Embrun, France |
| unknown | | Arias Soga † | Bishop of Lugo, Spain |
| unknown | 71.0 | Willem van Moerbeke, O.P. † | Archbishop of Corinthus, Greece |
| Jan | | Geoffrey Saint-Léger † | Bishop of Ossory, Ireland |
| 29 Jan | | Miguel Sánchez de Uncastillo † | Bishop of Pamplona, Spain |
| 31 Jan | | Bertrand de Miremont † | Bishop of (Saint-Bertrand de) Comminges, France |
| 3 Feb | | Bertrand de l’Isle Jourdain † | Bishop of Toulouse, France |
| 9 Feb | | Nuño Pérez † | Bishop of Mondoñedo, Spain |
| 21 Feb | | Giudaloste Vergiolesi † | Bishop of Pistoia, Italy |
| 28 Feb | | Guy de La Tour-du-Pin, O.P. † | Bishop of Clermont, France |
| 31 Mar | | Bertrand Almaric † | Archbishop of Arles, France |
| Apr | | Pellegrino † | Archbishop of Brindisi, Italy |
| 12 Apr | | Agustin Pérez † | Bishop of Osma, Spain |
| 26 Apr | | Heinrich von Finstingen † | Archbishop of Trier, Germany |
| 3 Jun | | Pierre de Montbrun † | Archbishop of Narbonne, France |
| 11 Jun | | Henri de Grançon (Grandson) † | Bishop of Verdun, France |
| 15 Jun | | Hugh Belsham, O.S.B. † | Bishop of Ely, England, Great Britain |
| 4 Jul | | Hartmann von Dillingen † | Bishop of Augsburg, Germany |
| 6 Jul | | Jens Trugoth † | Bishop of Odense, Denmark |
| 16 Aug | | Jacopo da Castelbuono, O.P. † | Bishop of Firenze, Italy |
| 25 Sep | | Walter Scammell † | Bishop of Salisbury, England, Great Britain |
| 1 Oct | | Jacques de Beauvoir † | Bishop of Autun, France |
| 28 Oct | | Bernardo Nicelli † | Bishop of Vicenza, Italy |