| Date | Age | Bishop | Title |
| unknown | | Giovanni Buondelmonti † | Archbishop of Kalocsa, Hungary |
| unknown | | Sabbas Carboni † | Bishop of Tricarico, Italy |
| unknown | | Cecco (or Franesco) † | Bishop of Umbriatico (Umbriaticum), Italy |
| unknown | | Ludovico Certa † | Bishop of Castellammare di Stabia, Italy |
| unknown | | Nicola da Zara, O.P. † | Bishop of Arbe (Rab), Croatia |
| unknown | | Francesco , O.S.B. † | Bishop of Castro [di Sardegna], Italy |
| unknown | | Guterio Gómez † | Titular Archbishop of Caesarea in Palaestina |
| unknown | | Jean Heysterbach, O.P. † | Auxiliary Bishop of Augsburg, Germany |
| unknown | | Jaime † | Bishop of Malta |
| unknown | | Martino da Lubiana † | Bishop of Pedena, Austria |
| unknown | | Nicola de Martino † | Bishop of Rossano, Italy |
| unknown | 67.0 | Biaggio Molino † | Titular Patriarch of Jerusalem {Gerusalemme}, Palestine |
| unknown | | Valentin Narnia † | Bishop of Ascoli Piceno, Italy |
| unknown | | Denis O’Cahan † | Bishop of Kilfenora, Ireland |
| unknown | | Daniele Pagani † | Bishop of Bobbio, Italy |
| unknown | | Antonio Presto, O.P. † | Bishop of Sulcis, Italy |
| unknown | | Robert Roger † | Archbishop of Aix, France |
| unknown | | Luca Rossi de’ Tartarinis † | Bishop of Nepi e Sutri, Italy |
| 1 Jan | | Alessio di Siregno, O.F.M. † | Bishop of Piacenza, Italy |
| 28 Jan | | Pierre Porcher (Porquerii), O.F.M. † | Bishop of Cavaillon, France |
| 23 Feb | 64.1 | Gabriele Condulmer, C.R.S.A. † | Pope (Roma {Rome}, Italy) |
| 13 Mar | | William Heiworth, O.S.B. † | Bishop of Coventry and Lichfield, England, Great Britain |
| 3 Apr | 65.2 | Niccolò d’Acciapaccio † | Cardinal, Archbishop of Capua, Italy |
| 4 Apr | | Niccolò Aldegardi † | Bishop of Trieste, Italy |
| 11 Apr | 73.2 | Henry Beaufort † | Cardinal, Bishop of Winchester, England, Great Britain |
| 22 May | | John Langton † | Bishop of Saint David’s, Wales, Great Britain |
| 6 Jul | | António Martins de Chaves † | Cardinal, Bishop of Porto, Portugal |
| 10 Jul | | Pasquier de Vaux † | Bishop of Lisieux, France |
| 20 Jul | | Gozewijn Comhaer, O. Cart. † | Bishop of Skálholt, Iceland |
| 9 Aug | 67.6 | Konrad von Schlesien-Ols † | Bishop of Wrocław (Breslau), Poland |
| 15 Sep | | Denis du Moulin † | Bishop of Paris, France |
| 7 Oct | | Pietro Donà (Donato) † | Bishop of Padova {Padua}, Italy |
| 7 Oct | | Jean du Gué (Vado) † | Bishop of Orléans, France |
| 8 Dec | | Nikolaus von Oldenburg-Delmenhorst † | Archbishop Emeritus of Bremen (and Hamburg), Germany |
| 13 Dec | | Jean de Podio † | Bishop of Bologna, Italy |
| 23 Dec | | Thomas Cheriton † | Bishop of Bangor, Wales, Great Britain |