Editing Deira (section)

=== Anglian Deira===
The kingdom,  which was previously ruled by a British dynasty, was probably created in the third quarter of the fifth century when Anglian warriors invaded the [[River Derwent, Yorkshire|Derwent Valley]].<ref>Higham, p. 98</ref> Anglian Deira's territory also extended from the [[Humber]] to the [[River Tees|Tees]], and from the sea to the western edge of the [[Vale of York]]. It later merged with the kingdom of [[Bernicia]], its northern neighbour, to form the kingdom of [[Northumbria]].

According to [[Simeon of Durham]] (writing early in the 12th century), it extended from the [[Humber]] to the [[River Tyne|Tyne]], but the land was waste north of the [[River Tees|Tees]]. After the Brythonic kingdom centred on {{lang|la|[[Eboracum]]}}, which may have been called [[Ebrauc]], was taken by King Edwin, the city of {{lang|la|Eboracum}} became its capital, and {{lang|ang|Eoforwic}} ("boar-place") was taken by the Angles.{{sfn|Malam|2011|p=24}}

Archaeology suggests that the Anglian royal house was in place by the middle of the fifth century, but the first certainly recorded king is [[Aella of Deira|Ælla]] in the late sixth century.<ref>Higham, pp. 77-78</ref> After his death, Deira was subject to king [[Aethelfrith of Northumbria|Æthelfrith]] of Bernicia, who united the two kingdoms into Northumbria. Æthelfrith ruled until the accession of Ælla's son [[Edwin of Northumbria|Edwin]], in 616 or 617, who also ruled both kingdoms until 633.<ref>{{Cite book|title=The Anglo-Saxon Chronicle|last=Garmonsway|first=G. N.|publisher=Dent|year=1954|isbn=0460106244|location=London|pages=26–27}}</ref>

[[Osric of Deira|Osric]], the nephew of Edwin, ruled Deira after Edwin, but his son [[Oswine of Deira|Oswine]] was put to death by [[Oswiu of Northumbria|Oswiu]] in 651. For a few years subsequently, Deira was governed by [[Aethelwald of Deira|Æthelwald]] son of [[Oswald of Bernicia]].<ref>D. P. Kirby, ''The Earliest English Kings'' (1991, 2000), page 78.</ref>

[[Bede]] wrote of Deira in his ''[[Historia ecclesiastica gentis Anglorum|Historia Ecclesiastica]]'' (completed in 731).{{sfn|Bede|1910|loc=Book III}}