Deira
…Æthelfrith, king of Bernicia, took control of Deira in 604 and united the two kingdoms into Northumbria. Æthelfrith ruled until the accession of Ælla's son Edwin, in 616 or 617, who also ruled both kingdoms until 633. Osric, the nephew of Edwin, ruled Deira after Edwin, but his son Oswine was put to death by…