| Date | Age | Event | Bishop | Title | Current Title |
| unknown | | Died | Alduino † | Bishop of Malta |
| Died | Ambroise † | Bishop of Nicastro, Italy |
| Died | Barthélémy † | Bishop of Alet, France |
| Died | Bertrando , O.P. † | Archbishop of Brindisi, Italy |
| Died | Pietro Borbelli, O.F.M. † | Bishop of Valva e Sulmona, Italy |
| 53.0 | Appointed | Annibaldo di Ceccano † | Cardinal, Cardinal-Bishop of Frascati |
| Resigned | Tiberio della Torre † | Bishop of Brescia, Italy | Bishop Emeritus |
| Died | Jean DuPray (de Prato), O.P. † | Bishop of Évreux, France |
| Died | Béraud de Farges † | Bishop of Albi, France |
| Died | Filippo † | Bishop of Fossombrone, Italy |
| Appointed | Robert Graystanes † | Bishop of Durham, England, Great Britain | Bishop Emeritus |
| Appointed | Gregorio † | Bishop of Belcastro, Italy |
| Died | Gregorius † | Bishop of Sirmio (Srijem; Sirmium), Croatia |
| Died | Fernando Ibáñez † | Bishop of Astorga, Spain |
| 68.0 | Died | Bertrand de La Tour, O.F.M. † | Cardinal, Cardinal-Bishop of Frascati |
| Appointed | Jean de Mandevillain † | Bishop of Nevers, France | Bishop of Chalons-sur-Marne, France |
| Died | Giovanni Orsini † | Archbishop of Palermo, Italy |
| Appointed | Clement Pierzschala † | Bishop of Płock, Poland |
| Ordained Bishop | Clement Pierzschala † | Bishop of Płock, Poland |
| Died | Gaudefroid Povereau, O.S.B. † | Bishop of Maillezais, France |
| Died | Ingerammus Stella † | Archbishop of Capua, Italy |
| Born | Albrecht von Sternberg † | | Bishop of Litomyšl, Czechia |
| Died | Styrbjörn † | Bishop of Strängnäs (Strengnäs), Sweden |
| Died | Guidotto de Tabiatis † | Archbishop of Messina, Italy |
| Died | Guillaume de Ventadour † | Bishop of Tournai {Doornik}, Belgium |
| Appointed | João Watrelos, O. Cist. † | Bishop of Viseu, Portugal |
| 4 Jan | | Ordained Bishop | Joannes , O.E.S.A. † | Bishop of Senj, Croatia | Archbishop of Split (Spalato), Croatia |
| 22 Jan | | Appointed | Alain Gonthier † | Bishop of Quimper, France |
| Appointed | Yves Le Prévôt de Bois Boëssel † | Bishop of Saint-Malo, France |
| 1 Feb | | Ordained Bishop | Jean Rubei, O. Carm. † | Bishop of Terralba, Italy |
| 15 Mar | | Appointed | Bonajunta de Boscolis † | Bishop of Polignano (Polinianum), Italy |
| Appointed | Hugues de Corraboeuf † | Bishop of Chalons-sur-Saône, France |
| Appointed | Franesco de Perusio, O.F.M. † | Bishop of Sarno, Italy |
| 19 Mar | | Appointed | Uguccione di Perugia, O.F.M. † | Bishop of Sutri, Italy |
| 21 Mar | | Died | Francesco de’ Boatteri, O.P. † | Bishop of Comacchio, Italy |
| 23 Mar | | Died | Guido , O.S.B. † | Bishop of Concordia (Sagittaria), Italy |
| 29 Mar | | Appointed | Giacomo Morola (Moroni) † | Bishop of Giovinazzo, Italy |
| 6 Apr | | Died | Jean de Butuane † | Archbishop of Zadar (Zara), Croatia |
| 18 Apr | 84.2 | Ordained Bishop | Guillaume de Chanac † | Bishop of Paris, France | Titular Patriarch of Alexandria {Alessandria} |
| 21 Apr | | Appointed | Uberto da Cesena † | Bishop of Concordia (Sagittaria), Italy |
| 31 May | | Appointed | Théobald de Saussoire † | Bishop of Tournai {Doornik}, Belgium |
| 9 Jun | | Appointed | Pedro Alfonso † | Bishop of Astorga, Spain | Bishop of Porto, Portugal |
| Appointed | Alvaro Pelagio, O.F.M. † | Bishop of Silves (Sylves), Portugal |
| 21 Jun | | Died | Florian Laskary z Kościelca † | Bishop of Płock, Poland |
| 3 Jul | | Appointed | Ugone † | Bishop of Martirano (Martoranum), Italy |
| 6 Jul | | Died | Wolfram von Grumbach † | Bishop of Würzburg, Germany |
| Died | Arnaud de Saint-Astier, O.S.B. † | Bishop of Tulle, France |
| 30 Jul | | Appointed | Bartolomeo , O.P. † | Bishop of Comacchio, Italy |
| Appointed | Guillaume des Essarts † | Bishop of Évreux, France |
| Appointed | Giovanni de Preston, O.F.M. † | Bishop of Nicastro, Italy |
| Appointed | Simone † | Bishop of Galtelli, Italy |
| 31 Jul | | Ordained Bishop | Bonajunta de Boscolis † | Bishop of Polignano (Polinianum), Italy |
| 10 Aug | | Appointed | Jean de Cumba † | Bishop of Cloyne, Ireland |
| 14 Aug | | Died | Tommaso de Pascasio † | Bishop of Caiazzo, Italy |
| 23 Aug | | Appointed | Jean des Prés-Montpezat † | Bishop of Coimbra, Portugal | Bishop of Castres, France |
| 27 Aug | | Died | Vital de Maignaut † | Archbishop of Besançon, France |
| Sep | | Died | Guido Roberti † | Archbishop of Ravenna, Italy |
| 6 Sep | | Appointed | Ricardo , O.P. † | Bishop of Alessano, Italy |
| 10 Sep | | Appointed | Arnaud de Clermont, O.F.M. † | Bishop of Tulle, France |
| Appointed | Guillaume d’Alzonne de Marcillac, O.S.B. † | Bishop of Alet, France |
| Appointed | Nicolas de Matafaris † | Archbishop of Zadar (Zara), Croatia |
| Appointed | Matteo , O.F.M. † | Bishop of Modon (Medone, Methone), Greece |
| 24 Sep | | Died | Lewis de Beaumont † | Bishop of Durham, England, Great Britain |
| 4 Oct | | Appointed | Heinrich Krafft † | Bishop of Lavant, Slovenia |
| 12 Oct | | Died | Simon Mepeham † | Archbishop of Canterbury, England, Great Britain |
| 14 Oct | 46.7 | Appointed | Richard Aungerville † | Bishop of Durham, England, Great Britain |
| Appointed | Roberto Campolo (de Messina), O.F.M. † | Bishop of Cefalù, Italy |
| Appointed | Francesco Michiel † | Archbishop of Ravenna, Italy | Archbishop of Candia {Crete}, Greece |
| 16 Oct | 75.7 | Died | Pietro Rinalducci, O.F.M. † | Bishop Emeritus |
| 19 Oct | | Appointed | Nicholas de Botras, O.F.M. † | Archbishop of Cambaluc (Peking, Khanbaliq), China |
| 20 Oct | | Appointed | Giovanni Mottola † | Bishop of Caiazzo, Italy |
| Appointed | Bonagiunta de Perusio, O.E.S.A. † | Bishop of Carinola (Calina), Italy |
| 27 Oct | | Died | Stephen Seagrave † | Archbishop of Armagh, Ireland |
| 30 Oct | | Appointed | Nicolò di Pietro Rainaldi † | Bishop of Valva e Sulmona, Italy |
| Appointed | Andrea dell’Elemosina, O.E.S.A. † | Bishop of Coron (Coronea), Greece |
| Appointed | Arnaud de Fabricis, O.P. † | Bishop of Segni, Italy | Bishop of Aleria, France |
| Appointed | Cristoforo Tramonto † | Bishop of Umbriatico (Umbriaticum), Italy | Bishop of Bisignano, Italy |
| 31 Oct | | Ordained Bishop | Guillaume d’Alzonne de Marcillac, O.S.B. † | Bishop of Alet, France |
| 12 Nov | | Died | Pierre de La Veyrie, O.S.B. † | Bishop of Luçon, France |
| 14 Nov | | Ordained Bishop | Robert Graystanes † | Bishop of Durham, England, Great Britain | Bishop Emeritus |
| 18 Nov | | Selected | John Stratford † | Archbishop of Canterbury, England, Great Britain |
| 26 Nov | | Appointed | Pål Bårdsson † | Archbishop of Nidaros (Trondheim), Norway |
| Appointed | Renaud de Thouars, O.S.B. † | Bishop of Luçon, France |
| 30 Nov | | Ordained Bishop | Arnaud de Fabricis, O.P. † | Bishop of Segni, Italy | Bishop of Aleria, France |
| Dec | | Resigned | Robert Graystanes † | Bishop of Durham, England, Great Britain | Bishop Emeritus |
| 1 Dec | | Appointed | Adam Orlton (Orleton) † | Bishop of Winchester, England, Great Britain |
| 2 Dec | | Appointed | Otto von Wolfskeel † | Bishop of Würzburg, Germany |
| 3 Dec | | Died | Orso Minutolo † | Archbishop of Salerno, Italy |
| 6 Dec | | Appointed | Guglielmo Isnard, O.F.M. † | Archbishop of Brindisi, Italy |
| 7 Dec | | Died | Gerold von Friesach † | Bishop of Gurk, Austria |
| Appointed | Simon Montacute † | Bishop of Worcester, England, Great Britain | Bishop of Ely, England, Great Britain |
| 8 Dec | | Died | Petar , O.P. † | Bishop of Bosnia (Bosna, Diacovar, Diakovar), Croatia |
| 19 Dec | 46.9 | Ordained Bishop | Richard Aungerville † | Bishop of Durham, England, Great Britain |
| 22 Dec | | Appointed | Hugues de Vienne † | Archbishop of Besançon, France |
| 23 Dec | | Died | Aymard Amiel † | Bishop of Marseille, France |
| 29 Dec | 37.9 | Died | Jindřich (Hynek) Berka z Dubé † | Bishop of Olomouc (Olmütz), Czechia |