Deira

Definition and stakes

Portrait of Samuel Rawson Gardiner Samuel Rawson Gardiner,  A Student's History of England…

“ North-humberland was therefore the first of the three to rise to the foremost place. Till the death of Ælla, the king of Deira, from whose land had been carried off the slave-boys whose faces had charmed Gregory at Rome, Deira and Bernicia had been as separate as Kent and Essex. Then in 588 Æthelric of Bernicia drove out Ælla's son and seized his kingdom of Deira, thus joining the two kingdoms of Deira and Bernicia (see p. 36) into one, under the new name of North-humberland. [2]
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Source: Gutenberg

Alice Margaret Cooke,  Dictionary of National Biography… (1895)

“ OLAF Sitricson (d. 981) , known in the sagas as Olaf The Red and Olaf Cuaran (i.e. of the Sandal) , leader of the Ostmen and king of Dublin and Deira, has been frequently confused with Olaf Godfreyson [q.v.] Like the latter, Olaf Sitricson was of the race of the Hy Ivar, and the great-grandson of Ivar Beinlaus, son of Regnar Lodbrok. His father was the Sitric, king of Deira, who married Æthelstan's sister, and died in 927. ”
Source: Wikisource

William Hunt,  Dictionary of National Biography… (1895)

“ OSRIC (d. 634) , king of Deira, was son of Ælfric, the brother of Ælla, king of Deira, and consequently cousin of Edwin or Eadwine (585?–633) [q. v.] , king of Northumbria. Osric accepted Christianity from Paulinus [q. v.] , and, when Eadwine was slain in battle with the Mercian king Penda, succeeded him in Deira. At the time the people of the northern kingdom of Bernicia, who had been subject to Eadwine, separated themselves from Deira, and chose as their king Eanfrith, son of Ethelfrid or Æthelfrith [q. v.] , king of Northumbria, who was of their royal house, sprung from Ida [q. v.] ”
Source: Wikisource

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