Bernicia was then briefly ruled by Eanfrith, son of Aethelfrith, but after about a year he went to Cadwallon to sue for peace and was killed.
Northumbria was then split back into its separate predecessor kingdoms of Bernicia and Deira, and Cadwallon defeated and killed their new kings, Eanfrith of Bernicia and Osric of Deira, as well.