Dispute with the Godwins
In October 1065 Northumbrian rebels chose Morcar as earl at York.
He at once satisfied the people of the Bernicia by making over the government of the country beyond the River Tyne to Osulf of Bamburgh the eldest son of Eadwulf III of Bamburgh, the Bernician earl, whom Siward had slain in 1041. Marching southwards with the rebels, Morcar gathered into his forces the men of Nottingham, Derby, and Lincoln, members of the old Danish confederacy of towns, and met his brother Edwin, Earl of Mercia, who was at the head of a considerable force at Northampton. There the brothers and their rebel army considered proposals for peace offered to them by Earl Harold Godwinson. Negotiations continued at Oxford, where, the Northumbrians insisting on the recognition of Morcar, Harold yielded on the 28th, and Morcar's election was legalised.