Deira
Kingdom of Deira | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| c. 450–654 | |||||||||||
| Capital | York | ||||||||||
| Common languages | Northumbrian Old English, Common Brittonic | ||||||||||
| Religion | Anglo-Saxon paganism, Christianity | ||||||||||
| Government | Monarchy | ||||||||||
| Historical era | Early Medieval | ||||||||||
• Established | c. 450 | ||||||||||
• Shared crown with Bernicia | 604 | ||||||||||
• merged with Bernicia | 654 | ||||||||||
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Deira (/ˈdaɪrə, ˈdɛərə/ DY-rə, DAIR-ə; Old Welsh/Cumbric: Deywr or Deifr; Old English: Dere or Dera rice) was an area of Post-Roman Britain, and a later Anglian kingdom.