 Earlier English sources record that Ælla and Osberht died in battle, the "Anglo-Saxon Chronicle" stating that "both the kings were slain on the spot".The main figure in the revenge tales is Ivar, who is sometimes associated with the Viking leader Ímar, brother of Amlaíb Conung, found in the Irish annals.Dorothy Whitelock notes that "it is by no means certain that he should be identified with the son of Ragnar, for the name is not uncommon".