Date | Age | Event | Bishop | Title | Current Title |
unknown | | Appointed | Pierre de Beneis † | Bishop of Bayeux, France |
| Appointed | Jazperto de Botonach † | Bishop of Valencia, Spain |
| Appointed | Gérard Grandison † | Bishop of Verdun, France |
| Died | Josselin , O.F.M. † | Bishop of Orange, France |
| Appointed | Aimon de Miolans † | Bishop of Saint-Jean-de-Maurienne, France |
| Died | Peder , O.F.M. † | Bishop of Odense, Denmark |
| Appointed | Fernando Rodríguez de Covarrubias † | Archbishop of Toledo, Spain | Archbishop Emeritus |
4 Jan | | Died | Johannes von Tralau † | Bishop of Lübeck, Germany |
6 Jan | 40.0 | Appointed | Burkhard von Serkem † | Bishop of Lübeck, Germany |
10 Jan | 66.0 | Died | Bl. Tedaldo Visconti † | Pope (Roma {Rome}, Italy) |
16 Jan | | Appointed | Pietro Viatico Caetani † | Bishop of Anagni, Italy |
21 Jan | 52.0 | Elected | Bl. Pierre de Tarentaise, O.P. † | Pope (Roma {Rome}, Italy) |
22 Feb | 52.1 | Installed | Bl. Pierre de Tarentaise, O.P. † | Pope (Roma {Rome}, Italy) |
22 Mar | | Ordained Bishop | Gilbert de Malemort † | Bishop of Limoges, France |
| Died | Pierre de Mincy † | Bishop of Chartres, France |
29 Mar | | Ordained Bishop | Gérard Grandison † | Bishop of Verdun, France |
18 May | | Appointed | Guido de Sully, O.P. † | Archbishop of Bourges, France |
22 Jun | 52.4 | Died | Bl. Pierre de Tarentaise, O.P. † | Pope (Roma {Rome}, Italy) |
11 Jul | 66.5 | Elected | Ottobono Fieschi † | Pope (Roma {Rome}, Italy) |
| Died | Gregorio di Napoli † | Bishop of Bayeux, France |
18 Aug | 66.6 | Died | Ottobono Fieschi † | Pope (Roma {Rome}, Italy) |
23 Aug | | Died | Erlandsen † | Archbishop-Elect of Lund, Sweden |
6 Sep | 66.6 | Died | (Guillaume) Vicedomino de Vicedominis † | Cardinal, Cardinal-Bishop of Palestrina |
8 Sep | 66.6 | Elected | João Pedro Julião † | Pope (Roma {Rome}, Italy) |
20 Sep | 66.7 | Installed | João Pedro Julião † | Pope (Roma {Rome}, Italy) |
17 Oct | | Died | Guichard de Germolles † | Bishop of Mâcon, France |
| Appointed | Henri de Murs † | Bishop of Thérouanne, France |
18 Oct | 66.7 | Appointed | Giovanni Gaetano Orsini † | Archpriest of the Basilica di San Pietro in Vaticano {Saint Peter Basilica} | Pope (Roma {Rome}, Italy) |
22 Oct | | Died | Amédée de Genève † | Bishop Emeritus of Die, France |
25 Nov | | Died | Andrés de Albalat, O.P. † | Bishop of Valencia, Spain |
Dec | | Died | Reginald † | Bishop of Cork, Ireland |
2 Dec | | Died | Girard de La Roche † | Bishop of Autun, France |
18 Dec | 46.9 | Appointed | Bentivenga de Bentivenghi, O.F.M. † | Cardinal, Bishop of Todi, Italy |