Claim: List of monarchs of Northumbria included Ælle II who was killed by the Danes with Osbeorht, and Eanred who was the son of Eardwulf.
Evidence: Ælle II Usurper, killed by the Danes with Osbeorht While Norse sources claim that Ragnar's sons tortured Ælla to death by the method of the blood eagle, Anglo-Saxon accounts maintain that he died in battle at York on 21 March 867. Osberht (Osbert) Killed by the Danes with the usurper Ælle Eardwulf