Constitutional status of Cornwall of Exeter, styled himself as "King of the English, and ruler of this province of Britons". Edmund's successor Edgar styled himself "King of the English and ruler of the adjacent nations". This was followed by king Aethelred II (978–1016) describing Cornwall not as an English shire, but as a province, or client territory. Surviving charters issued by the Kings of England Edmund I (939–946), Edgar (959–975), Edward the Martyr (975–978), Aethelred II (978–1016), Edmund II (1016), Cnut (1016–1035) and Edward the Confessor (1042–1066) record grants of land in Cornwall made by these kings. In contrast to the easterly concentration of
Henry III of England and began to issue royal orders independently of the barons. Henry finally returned to retake power in England in April 1260, where conflict was brewing between de Clare's forces and those of de Montfort and Edward. Henry's brother Richard mediated between the parties and averted a military confrontation; Edward was reconciled with his father and de Montfort was put on trial for his actions against the King. Henry was unable to maintain his grip on power, and in October a coalition headed by de Montfort, de Clare and Edward briefly seized back control; within months their baronial council had collapsed