| Date | Age | Event | Bishop | Title | Current Title |
|---|
| unknown | | Died | Anian † | Bishop of Bangor, Wales, Great Britain |
| Resigned | Antal , O.F.M. † | Bishop of Csanád, Hungary | Bishop Emeritus |
| Appointed | Bartolomeo de Antiochia † | Archbishop of Palermo, Italy |
| Appointed | Benedek † | Bishop of Csanád, Hungary |
| Appointed | Pere (Pedro) de Beteto † | Bishop of Tortosa, Spain |
| Died | Geoffroi Boucher † | Bishop of Avranches, France |
| Resigned | Bl. Gauthier de Bruges, O.F.M. † | Bishop of Poitiers, France | Bishop Emeritus |
| Appointed | Thomas Cantok † | Bishop of Emly, Ireland |
| Ordained Bishop | Thomas Cantok † | Bishop of Emly, Ireland |
| Died | William Clifford † | Bishop of Emly, Ireland |
| Born | Bernard de La Tour † | | Cardinal, Cardinal-Deacon of Sant’Eustachio |
| Appointed | Guillaume de Durfort † | Bishop of Langres, France | Archbishop of Rouen, France |
| 36.0 | Appointed | Luca Fieschi † | Cardinal, Cardinal-Deacon of Santi Cosma e Damiano |
| Appointed | Giacomo † | Bishop of Fano, Italy |
| Appointed | Heinrich von Goltern † | Archbishop of Bremen (and Hamburg), Germany |
| Died | Álvaro Gómez † | Bishop of Palencia, Spain |
| Appointed | Bertrand de Goth † | Bishop of Langres, France | Bishop of Agen, France |
| Appointed | Guerin , O.P. † | Bishop of Sagone (Sagona), France |
| Died | István † | Archbishop of Kalocsa, Hungary |
| Died | Jacques † | Bishop of Mylopotamos, Greece |
| Appointed | Esger Juul † | Bishop of Aarhus (Århus), Denmark | Archbishop of Lund, Sweden |
| Died | Guillaume de Léon † | Bishop of Saint-Pol-de-Léon, France |
| Appointed | Henry MacCrossan † | Bishop of Raphoe, Ireland |
| Died | Rodrigo Martínez † | Bishop of Lugo, Spain |
| Appointed | Dalmau de Monte Olivo † | Bishop of Tortosa, Spain |
| Died | Thomas O’Nathain † | Bishop of Raphoe, Ireland |
| Appointed | Gilbert O’Tigernaig, O.F.M. † | Bishop of Annaghdown (Enach Dune), Ireland |
| Appointed | Roger † | Bishop of Rossano, Italy |
| Died | Stefano Tasca, O.P. † | Bishop of Bagnoregio (Bagnorea), Italy |
| Appointed | Ugo , O.P. † | Titular Bishop of Byblus | Bishop of Pula (Pola), Croatia |
| Appointed | Johannes Wulfing (Güttingen) † | Bishop of Brixen {Bressanone}, Italy | Bishop of Freising, Germany |
| Died | Marin Petrov Žaretić † | Archbishop of Bar (Antivari), Montenegro |
| 16 Jan | | Ordained Bishop | Altogrado Cattaneo † | Bishop of Vicenza, Italy |
| 18 Jan | | Appointed | Giovanni di Preneste † | Administrator of Corinthus, Greece | Bishop of Spoleto, Italy |
| 22 Jan | | Appointed | Heinrich Anhalt † | Archbishop of Magdeburg, Germany |
| Appointed | Bartolomeo † | Archbishop of Brindisi, Italy |
| Appointed | Ferquhard (Forcan) Belegaumbe (Belleganach) † | Bishop of Caithness, Scotland, Great Britain |
| Appointed | Gui de Colle Medio † | Archbishop of Salerno, Italy |
| Appointed | Jacques Gantelmi † | Bishop of Sisteron, France |
| Ordained Bishop | Giacomo † | Bishop of Fano, Italy |
| Appointed | Philip Leportier de Marigny † | Bishop of Cambrai, France | Archbishop of Sens, France |
| Appointed | Pierre de Lévis de Mirepoix † | Bishop of Maguelonne, France | Bishop of Bayeux, France |
| Appointed | Gaillard de Preyssac † | Archbishop of Toulouse, France | Archbishop Emeritus |
| 23 Jan | | Ordained Bishop | Heinrich Anhalt † | Archbishop of Magdeburg, Germany |
| Ordained Bishop | Ferquhard (Forcan) Belegaumbe (Belleganach) † | Bishop of Caithness, Scotland, Great Britain |
| Died | Pierre de Beneis † | Bishop of Bayeux, France |
| Ordained Bishop | Robert Walrand † | Bishop of Ferns, Ireland |
| 30 Jan | | Ordained Bishop | Ralph Baldock † | Bishop of London, England, Great Britain |
| Ordained Bishop | William Greenfield † | Archbishop of York, England, Great Britain |
| 31 Jan | | Ordained Bishop | Bartolomeo de Antiochia † | Archbishop of Palermo, Italy |
| Appointed | Tamás † | Archbishop of Esztergom, Hungary |
| Ordained Bishop | Tamás † | Archbishop of Esztergom, Hungary |
| 6 Feb | 46.0 | Appointed | Pietro Colonna † | Cardinal, Cardinal-Deacon of Sant’Angelo in Pescheria |
| 13 Feb | 66.1 | Ordained Bishop | Philipp von Rathsamhausen † | Bishop of Eichstätt, Germany |
| 17 Feb | | Appointed | Bonifacio di Donoratico, O.P. † | Bishop of Chiron, Greece | Bishop Emeritus |
| Appointed | Arnaldo Ressach † | Archbishop of Monreale, Italy |
| Appointed | Restauro , O.F.M. † | Bishop of Grosseto, Italy |
| 18 Feb | | Appointed | Francesco Bruno, O.F.M. † | Bishop of Gaeta, Italy |
| Appointed | Johann von Durbheim † | Bishop of Strasbourg, France |
| 66.1 | Appointed | Philipp von Rathsamhausen † | Bishop of Eichstätt, Germany |
| 23 Feb | | Appointed | Eudes (Othon) de Granson † | Bishop of Toul, France | Bishop of Basel, Switzerland |
| 25 Feb | | Appointed | Bernard de Farges † | Bishop of Agen, France | Archbishop of Narbonne, France |
| 26 Feb | | Appointed | Ugo , O.P. † | Administrator of Oristano, Italy | Bishop of Pula (Pola), Croatia |
| 27 Feb | | Appointed | Francesco † | Archbishop of Sorrento, Italy |
| Appointed | Francesco † | Archbishop of Sorrento, Italy |
| Ordained Bishop | Guerin , O.P. † | Bishop of Sagone (Sagona), France |
| Ordained Bishop | Roger † | Bishop of Rossano, Italy |
| Mar | | Died | Donat O’Flaherty † | Bishop of Killala, Ireland |
| 1 Mar | | Appointed | Guillaume Arrufat des Forges † | Cardinal, Cardinal-Priest of Santa Pudenziana |
| 18 Mar | | Died | Bonifacio del Carretto † | Bishop of Alba (Pompea), Italy |
| 1 Apr | | Died | Jens Assersøn † | Bishop of Aarhus (Århus), Denmark |
| 6 Apr | | Died | Guillaume de Flavacourt † | Archbishop of Rouen, France |
| 26 Apr | | Died | Johann Sax † | Bishop of Brixen {Bressanone}, Italy |
| May | | Died | Gui de Colle Medio † | Archbishop of Salerno, Italy |
| 4 May | 66.3 | Appointed | Antony Beck † | Titular Patriarch of Jerusalem {Gerusalemme}, Palestine |
| 29 May | | Died | Pierre de Mornay † | Bishop of Auxerre, France |
| 4 Jun | | Appointed | Bernard de Farges † | Archbishop of Rouen, France | Archbishop of Narbonne, France |
| Appointed | Berardo di Ponte † | Archbishop of Salerno, Italy |
| 5 Jun | | Died | Pierre de Négrel † | Bishop of Riez, France |
| 8 Jun | | Appointed | Giuliano Natale, O.S.B. † | Bishop of Poreč (Parenzo), Croatia |
| 13 Jun | | Appointed | John Tankard † | Bishop of Killala, Ireland |
| 20 Jun | | Appointed | Giovanni Magno † | Bishop of Equilio (Jesolo), Italy |
| 5 Jul | | Died | Adalbert de Peyre † | Bishop of Viviers (Aps), France |
| Died | Ponç de Vilaró † | Bishop of Vic, Spain |
| 6 Jul | | Appointed | Briand de Lagnieu (Lavieu) † | Archbishop of Vienne, France |
| 8 Jul | | Appointed | Vince † | Archbishop of Kalocsa, Hungary |
| 9 Jul | | Appointed | Simone † | Bishop of Bagnoregio (Bagnorea), Italy |
| Confirmed | Nicola de Vare † | Bishop of Bosa, Italy |
| 13 Jul | | Appointed | Pierre Gantelmi † | Bishop of Riez, France |
| 20 Jul | | Died | Arnau de Jardí † | Bishop of Tortosa, Spain |
| 22 Jul | | Died | Christian † | Bishop of Pomesania (Pomezania), Poland |
| 28 Jul | | Appointed | Arnaud de Canteloup † | Archbishop of Bordeaux, France |
| 27 Aug | | Appointed | Pierre de Belleperche † | Bishop of Auxerre, France |
| Appointed | Guillaume Bonnet † | Bishop of Bayeux, France |
| Appointed | Nicolas de Luzarches † | Bishop of Avranches, France |
| Appointed | Louis de Poitiers † | Bishop of Viviers (Aps), France | Bishop of Metz, France |
| Appointed | John Taaffe † | Archbishop of Armagh, Ireland |
| 4 Sep | | Died | Pierre Arnaud de Puyanne, O.S.B. † | Cardinal, Cardinal-Priest of Santo Stefano al Monte Celio |
| 12 Sep | 66.6 | Died | Henrich von Klingenberg † | Bishop of Konstanz {Constance}, Germany |
| 19 Sep | | Appointed | Berenguer de Guardia (Çaguardia) † | Bishop of Vic, Spain |
| 9 Oct | | Ordained Bishop | Pere (Pedro) de Beteto † | Bishop of Tortosa, Spain |
| 3 Nov | | Appointed | Alfonso das Asturias † | Bishop of Salamanca, Spain |
| Appointed | Guido de Beaulieu, O.S.B. † | Bishop of Toul, France |
| Appointed | Diego Fernandi † | Bishop of Lamego, Portugal | Bishop of Zamora, Spain |
| Appointed | Eudes (Othon) de Granson † | Bishop of Basel, Switzerland |
| 4 Nov | 46.8 | Appointed | Arnaud d’Aux † | Bishop of Poitiers, France | Cardinal, Cardinal-Bishop of Albano |
| 10 Nov | 66.8 | Appointed | Peter von Aspelt † | Archbishop of Mainz, Germany |
| 11 Nov | | Appointed | Bertrand de Goth † | Bishop of Agen, France |
| 13 Nov | | Ordained Bishop | Guido de Beaulieu, O.S.B. † | Bishop of Toul, France |
| Ordained Bishop | Guillaume de Durfort † | Bishop of Langres, France | Archbishop of Rouen, France |
| 14 Nov | 46.8 | Ordained Bishop | Arnaud d’Aux † | Bishop of Poitiers, France | Cardinal, Cardinal-Bishop of Albano |
| 17 Nov | | Died | Giselbert von Brunkhorst † | Archbishop of Bremen (and Hamburg), Germany |
| Dec | | Appointed | Pierre de La Chapelle Taillefert † | Cardinal, Cardinal-Bishop of Palestrina |
| 7 Dec | | Died | Teodorico Ranieri † | Cardinal, Cardinal-Bishop of Palestrina |
| 18 Dec | | Ordained Bishop | Berenguer de Guardia (Çaguardia) † | Bishop of Vic, Spain |
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