Date | Age | Event | Bishop | Title | Current Title |
unknown | | Appointed | Aimerico † | Bishop of Ajaccio, France |
| Born | Giovanni da Amelia † | | Cardinal, Archbishop Emeritus of Corfù, Greece |
| Born | Pierre Amiel de Sarcenas, O.S.B. † | | Cardinal, Cardinal-Priest of San Marco |
| Died | Atanasio † | Titular Patriarch of Alexandria {Alessandria} |
| Died | Guillaume d’Aubenas † | Bishop of Saint-Paul-Trois-Châteaux, France |
| Died | Barlaam † | Bishop of Gerace, Italy |
| Died | Antonio Camilla † | Bishop of Luni, Italy |
| Appointed | Andrea Capograssi † | Bishop of Acerno, Italy | Bishop of Valva e Sulmona, Italy |
| Died | Matthew of Crambeth † | Bishop of Dunkeld, Scotland, Great Britain |
| Appointed | Guillaume de Baron † | Bishop of Senlis, France |
| Ordained Bishop | Guillaume de Baron † | Bishop of Senlis, France |
| Died | Dolgfinnr † | Bishop of Orkney (Kirkwall), Scotland, Great Britain |
| Resigned | Robert du Pont † | Bishop of Saint-Malo, France | Bishop Emeritus |
| Died | Egidio † | Bishop of Urbino, Italy |
| Appointed | Anselme Féraud de Glandèves, C.R.S.A. † | Bishop of Glandèves, France |
| Appointed | William le Fleming † | Bishop of Lismore, Ireland |
| Died | Fradulo † | Bishop of Porto, Portugal |
| Selected | Bérenger de Frédol (Jr.) † | Bishop of Béziers, France | Cardinal, Cardinal-Bishop of Porto e Santa Rufina |
| Died | Eudes (Othon) de Granson † | Bishop of Basel, Switzerland |
| Appointed | Markward von Jesowe † | Bishop of Ratzeburg, Germany |
| Appointed | Miguel Jiménez de Urrea † | Bishop of Tarazona, Spain |
| Died | Lamberto , O.F.M. † | Bishop of Aquino, Italy |
| Died | Lawrence † | Bishop of Ross, Ireland |
| Appointed | Lodin † | Bishop of Forli, Italy | Bishop of Faröe Islands, Denmark |
| Appointed | Pierre de Marenne † | Bishop of Bayonne, France |
| Appointed | Niels † | Bishop of Börglum (Aalborg), Denmark | Bishop Emeritus |
| Appointed | Matthew O’Fin † | Bishop of Ross, Ireland |
| Died | Pietro † | Bishop of Castro [del Lazio], Italy |
| Died | Roberto † | Bishop of Monopoli, Italy |
| Died | Roberto † | Bishop of Sessa Aurunca, Italy |
| Appointed | William Roghened † | Bishop of Emly, Ireland |
| Appointed | Raymond Sain-Sever, O.S.B. † | Bishop of Oloron (Oloron-Sainte-Marie), France | Cardinal, Cardinal-Priest of Santa Pudenziana |
| Appointed | Salomone de’ Salomoni † | Bishop of Treviso, Italy |
| Appointed | Friedrich Spät von Faimingen † | Bishop of Augsburg, Germany |
| Died | Pietro Turrite † | Bishop of Aversa, Italy |
| Appointed | Engelbert von Weyhe † | Bishop of Osnabrück, Germany |
5 Jan | | Ordained Bishop | Pierre des Grez (Gree) † | Bishop of Auxerre, France |
22 Jan | | Died | Alfonso das Asturias † | Bishop of Salamanca, Spain |
3 Feb | | Died | Romoaldo Grisone † | Archbishop of Bari (-Canosa), Italy |
5 Feb | | Selected | John Drokensford † | Bishop of Bath and Wells, England, Great Britain |
8 Feb | | Died | Hermann von Blücher † | Bishop of Ratzeburg, Germany |
Mar | | Died | Lottieri della Tosa † | Bishop of Firenze, Italy |
15 Mar | | Appointed | Pietro di Beauvais † | Bishop of Aversa, Italy |
27 Mar | | Appointed | Tommaso de Pascasio † | Bishop of Caiazzo, Italy |
29 Mar | | Died | Etienne Béguart de Penoul † | Archbishop of Sens, France |
6 Apr | | Appointed | Corrado , O.E.S.A. † | Bishop of Urbino, Italy |
11 Apr | | Appointed | Giacomo † | Bishop of Castro [del Lazio], Italy | Bishop of Nola, Italy |
| Died | Jørund † | Archbishop of Nidaros (Trondheim), Norway |
12 Apr | | Ordained Bishop | Ponce Aquilaníu, C.R.S.A. † | Bishop of Lérida, Spain |
| Appointed | Guillaume Blanco † | Bishop of Troia, Italy |
| Ordained Bishop | Guillaume Blanco † | Bishop of Troia, Italy |
| Appointed | Guillermo de Rocaberti † | Archbishop of Tarragona, Spain |
| Ordained Bishop | Guillermo de Rocaberti † | Archbishop of Tarragona, Spain |
23 Apr | | Appointed | Philip Leportier de Marigny † | Archbishop of Sens, France |
27 Apr | | Died | Giovanni † | Bishop of Caiazzo, Italy |
13 May | | Appointed | Emanuele Spinola † | Bishop of Albenga, Italy | Bishop of Bitetto, Italy |
27 May | | Died | Griffin ap Yorwerth † | Bishop of Bangor, Wales, Great Britain |
29 May | | Confirmed | Bérenger de Frédol (Jr.) † | Bishop of Béziers, France | Cardinal, Cardinal-Bishop of Porto e Santa Rufina |
31 May | | Died | Bernard de Montaigu † | Bishop of (Saint-Lizier de) Couserans (or Conserans), France |
20 Jun | | Appointed | Tommaso † | Bishop of Aquino, Italy |
22 Jun | | Ordained Bishop | Friedrich Spät von Faimingen † | Bishop of Augsburg, Germany |
4 Jul | | Appointed | Arnaud Fredet, O.P. † | Bishop of (Saint-Lizier de) Couserans (or Conserans), France |
15 Jul | | Appointed | Pasquale † | Bishop of Larino, Italy |
| Appointed | Simón , O. de M. † | Bishop of Badajoz, Spain | Bishop of Tuy, Spain |
20 Jul | | Died | Nicholas Cheevers † | Bishop of Leighlin, Ireland |
24 Jul | | Appointed | Benedek , O.P. † | Bishop of Transilvania, Erdély, Siebenbürgen, Romania |
28 Jul | | Appointed | Miklós Koszegi † | Bishop of Győr (Raab), Hungary |
29 Jul | | Appointed | Jean-Raymond de Comminges † | Bishop of Maguelonne, France | Cardinal, Cardinal-Bishop of Porto e Santa Rufina |
| Appointed | Israel Erlandsson, O.P. † | Bishop of Västerås (Westeraes), Sweden |
| Appointed | Pierre de Lévis de Mirepoix † | Bishop of Cambrai, France | Bishop of Bayeux, France |
| Appointed | Ramon Trebailla, O.S.B. † | Bishop of Urgell, Spain |
30 Jul | | Appointed | Othon di Champvent † | Bishop of Lausanne, Switzerland |
| Appointed | Gerhard di Wippingen † | Bishop of Basel, Switzerland |
Aug | | Died | Giacomo † | Archbishop of Otranto, Italy |
| Died | Giuliano Natale, O.S.B. † | Bishop of Poreč (Parenzo), Croatia |
5 Aug | | Appointed | Anian Seys † | Bishop of Bangor, Wales, Great Britain |
10 Aug | | Died | Giovanni Boccamazza † | Cardinal, Cardinal-Bishop of Frascati |
18 Aug | | Appointed | Bertrando † | Bishop of Sessa Aurunca, Italy |
12 Sep | | Appointed | Nicolò Buccasingus † | Bishop of Monopoli, Italy |
29 Sep | | Died | Robert de Clinchamp † | Bishop of Le Mans, France |
2 Nov | | Died | Giovanni da Scanzo † | Bishop of Bergamo, Italy |
9 Nov | | Ordained Bishop | John Drokensford † | Bishop of Bath and Wells, England, Great Britain |
| Ordained Bishop | Anian Seys † | Bishop of Bangor, Wales, Great Britain |
11 Nov | | Appointed | Maurice de Blancheville † | Bishop of Leighlin, Ireland |
Dec | 59.9 | Appointed | Bérenger de Frédol (Sr.) † | Cardinal, Cardinal-Bishop of Frascati |