Battle of Wilton Boulogne to England and claimed the throne. He quickly gained the support of London's magnates and the church, and seized control of the treasury at Winchester. He was crowned king on 22 December 1135. By 1138, Matilda had gathered enough support to challenge Stephen for the throne. Her supporters were led by her half-brother Robert Earl of Gloucester. The ensuing civil war lasted until 6 November 1153 when, by the Treaty of Wallingford, Stephen recognised Matilda's son Henry as heir to the throne. By 1142 both sides had become cautious of risking open battle, and the civil war became a
David, Prince of the Cumbrians the greatest warriors of the age, and applauded if they ended in conquest – nor should it be any surprise that he soon sought to express them upon Henry’s death. That he should seek to place those ambitions upon a solid basis of propriety would have been even less remarkable, had a suitable excuse to attack not been conveniently at hand. When Henry I died in 1135, David had already sat upon the throne of Scotland for nearly eleven years. He had also, in his capacity as a great English nobleman, been the first to swear obedience to Henry’s daughter,