| Date | Age | Bishop | Title |
| unknown | | Hugo Bauzá † | Bishop of Angoulême, France |
| unknown | | Jean de Beersel, O.F.M. † | Auxiliary Bishop of Liège, Belgium |
| unknown | 92.0 | Pedro Beltrán (Bertrandi) † | Bishop of Tuy, Spain |
| unknown | | Carlo Bocconi † | Bishop of Vieste, Italy |
| unknown | | Johann Buxhoevden von Roppa † | Bishop of Dorpat (Tartu), Estonia |
| unknown | | Pietro Paolo Capobianco † | Bishop of Sant’Agata de’ Goti, Italy |
| unknown | | Troilo Carafa † | Bishop of Gerace, Italy |
| unknown | | Johann Cippico † | Archbishop-Elect of Zadar (Zara), Croatia |
| unknown | | Francesco Dentice † | Bishop-Elect of Cariati e Cerenzia, Italy |
| unknown | | Alfonso de Fonseca † | Bishop of Osma, Spain |
| unknown | | Brynolf Gerklaksson † | Bishop of Skara, Sweden |
| unknown | | Maurilio Giannotti † | Bishop of Calvi Risorta, Italy |
| unknown | | Fernando Gonçalves de Miranda † | Bishop of Viseu, Portugal |
| unknown | | Istvan Harztovuyeza † | Auxiliary Bishop of Zagreb (Agram), Croatia |
| unknown | | Andrea Landi † | Archbishop of Candia {Crete}, Greece |
| unknown | | Matteo Mancini † | Bishop of Sora, Italy |
| unknown | | Pedro de Munébrega † | Bishop of Mondoñedo, Spain |
| unknown | | Patrick O’Canally † | Bishop-Elect of Clogher, Ireland |
| unknown | | Nehemie Herve O’Cluainin, O.S.A. † | Bishop Emeritus of Clogher, Ireland |
| unknown | | Pietro Palagario, O.F.M. † | Bishop of Telese o Cerreto Sannita, Italy |
| unknown | | Andrew Pictoris (Schindeler, Maler) † | Bishop of Orkney (Kirkwall), Scotland, Great Britain |
| unknown | | Pancrazio Rotondi † | Bishop-Elect of Civitate (Città or Civita), Italy |
| unknown | | Giovanni Sacco † | Archbishop of Dubrovnik (Ragusa), Croatia |
| unknown | | William Sever (Siveyer, Senhouse), O.S.B. † | Bishop of Durham, England, Great Britain |
| unknown | | István de Szatmar † | Bishop of Sirmio (Srijem; Sirmium), Croatia |
| unknown | 65.0 | Hans Teiste † | Bishop of Bjørgvin (Bergen), Norway |
| unknown | | George Vaus † | Bishop of Whithorn-Galloway, Scotland, Great Britain |
| unknown | | Martino Zapata † | Bishop of Sessa Aurunca, Italy |
| 1 Jan | 63.0 | Juan Castellar y de Borja † | Cardinal, Archbishop of Monreale, Italy |
| 30 Jan | | Georg Marshalk von Ebenth † | Bishop of Bamberg, Germany |
| 5 Feb | | Gilles Van Der Heyden (Merica), O. Carm. † | Auxiliary Bishop of Cambrai, France |
| 8 Feb | 65.1 | Pedro Garcia † | Bishop of Barcelona, Spain |
| 5 Mar | 38.1 | Philippe de Clèves † | Bishop of Autun, France |
| 7 Mar | | Jean Calloet † | Bishop of Tréguier, France |
| 8 Mar | 56.1 | Friedrich von Hohenzollern † | Bishop of Augsburg, Germany |
| 27 May | 50.2 | Ascanio Maria Sforza † | Cardinal, Administrator of Pavia, Italy |
| 29 May | | Herlog Vigleiksson Korning (Corntigi) † | Bishop of Oslo, Norway |
| 31 May | | Louis Poto † | Bishop of Lectoure, France |
| 6 Jun | | Thomas Ghisleri † | Bishop of Jesi, Italy |
| 1 Jul | | Jean-André Grimaldi † | Bishop of Grasse, France |
| 13 Jul | | Pedro Stornello, O.P. † | Bishop of Civita (Tempio), Italy |
| 30 Jul | 33.5 | Bernardino Carafa † | Bishop of Chieti, Italy |
| 30 Jul | | Johann Welmecher, O.F.M. † | Auxiliary Bishop of Paderborn, Germany |
| 1 Aug | | Francesco Quirini † | Archbishop of Durrës (Durazzo), Albania |
| 8 Aug | | Niccolò de Rubini † | Bishop of Lacedonia, Italy |
| 24 Aug | | Richard Redman, O. Praem. † | Bishop of Ely, England, Great Britain |
| 31 Aug | | Guillaume de Cambrai (Cambray) † | Archbishop of Bourges, France |
| 1 Sep | | Pierre d’Amboise, O.S.B. † | Bishop of Poitiers, France |
| 1 Sep | | Paul de Wath † | Bishop of Samland (Sambia), Poland |
| 5 Sep | 70.2 | Raymond Pérault, O.S.A. † | Cardinal, Bishop Emeritus of Gurk, Austria |
| 12 Sep | 55.6 | Maciej ze Starej Łomży † | Bishop of Chełm, Poland |
| 16 Sep | | Ulrich von Liechtenstein † | Bishop of Trento, Italy |
| Oct | | Charles McBrien † | Bishop of Emly, Ireland |
| 10 Oct | | William Barons (Barnes) † | Bishop of London, England, Great Britain |
| 20 Oct | | Henri de Lorraine-Vaudémont † | Bishop Emeritus of Metz, France |
| 31 Oct | | Étienne Blosset de Carrouges † | Bishop Emeritus of Lisieux, France |
| 17 Dec | | Christophe de Penmarch † | Bishop of Saint-Brieuc, France |
| 19 Dec | | Jean Hornet (Hoerne) † | Bishop of Liège, Belgium |