Edgar acceded to the English throne upon the death of his brother Eadwig. Edgar, King of England: Edgar, also known as Edgar the Peaceful, the Peacemaker and the Peaceable, was King of the English from 959 until his death in 975. He became king of all England on his brother Eadwig's death. He was the younger son of King Edmund I and his first wife, Ælfgifu. A detailed account of Edgar's reign is not possible, because only a few events were recorded by chroniclers and monastic writers, who were more interested in recording the activities of the leaders of the church. October 1, 959. Wiki link