Deira

Deira (/ˈdaɪərə, ˈdɛərə/ DYRE-ə, DAIR;[1] Old Welsh/Cumbric: Deywr or Deifr; Old English: Derenrice or Dere) was an area of Post-Roman Britain, and a later Anglian kingdom.[2]

Kingdom of Deira
c. 450–654
CapitalYork
Common languagesOld English, Common Brittonic
GovernmentMonarchy
Historical eraEarly Medieval
 Established
c. 450
 Shared crown with Bernicia
604
 merged with Bernicia
654
Preceded by
Succeeded by
Sub-Roman Britain
Northumbria