Date | Age | Event | Bishop | Title | Current Title |
unknown | | Appointed | Arnold von Altena † | Bishop of Osnabrück, Germany |
| Died | Wilmar von Brandenburg, O. Praem. † | Bishop of Brandenburg, Germany |
| Appointed | Robert Foliot † | Bishop of Hereford, England, Great Britain |
| Appointed | John Greenford † | Bishop of Chichester, England, Great Britain |
| Appointed | Hermann von Katzenelnbogen † | Bishop of Münster, Germany |
| Died | Melendo (Mendo) , C.R.S.A. † | Bishop of Lamego, Portugal |
| Appointed | Geoffrey Ridel † | Bishop of Ely, England, Great Britain |
21 Feb | 54.1 | Canonized | St. Thomas Becket † | Archbishop of Canterbury, England, Great Britain |
May | | Selected | Geoffrey Plantagenet † | Bishop of Lincoln, England, Great Britain | Archbishop of York, England, Great Britain |
1 May | | Appointed | Richard of Ilchester † | Bishop of Winchester, England, Great Britain |
3 Jun | | Appointed | Richard of Dover † | Archbishop of Canterbury, England, Great Britain |
15 Jun | | Died | Philipp von Katzenelnbogen † | Bishop of Osnabrück, Germany |
Sep | 53.6 | Appointed | Uberto Crivelli † | Cardinal-Priest | Pope (Roma {Rome}, Italy) |
53.6 | Elevated to Cardinal | Uberto Crivelli † | Pope (Roma {Rome}, Italy) |
25 Dec | 41.9 | Appointed | Siegfried von Anhalt † | Bishop of Brandenburg, Germany | Archbishop of Bremen (and Hamberg), Germany |
26 Dec | | Died | Ludwig von Wippra † | Bishop of Münster, Germany |