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
Edward IV of England Chapel, Windsor Castle. He was succeeded by his twelve-year-old son Edward V of England (who was never crowned) and then by his brother Richard. It is not known what actually caused Edward's death. Pneumonia and typhoid have both been conjectured, as well as poison. Some attributed his death to an unhealthy lifestyle, as he had become stout and inactive in the years before his death. Edward was an extremely capable and daring military commander. He crushed the House of Lancaster in a series of spectacular military victories. He was a popular and very able king, despite his occasional (if serious)