Alchmund, murdered c. 800, was not a king, but the son of the King Alchred of Northumbria who was deposed in 774. Eadwine, King of Northumbria, killed 633. Oswald, king of Northumbria, killed 642. Oswine, king of Deira (the southern portion of Northumbria), murdered 651. Aelfwald, king of Northumbria, murdered 788.