Cornwall Cornwall Cornwall (; ) is a county in South West England in the United Kingdom. The county is bordered to the north and west by the Celtic Sea, to the south by the English Channel, and to the east by the county of Devon, over the River Tamar which forms most of the border between them. Cornwall forms the westernmost part of the South West Peninsula of the island of Great Britain. The furthest southwestern point of the island is Land's End; the southernmost point is Lizard Point. Cornwall has a population of and covers an area of . The
Constitutional status of Cornwall "Historia Regum Britanniae" remained influential for centuries, often used by writers who were unaware that his work was the source. For example, in 1769 the antiquary William Borlase wrote the following, which is actually a summary of a passage from Geoffrey [Book iii:1]: Of this time we are to understand what Edward I. says (Sheringham. ["De Anglorum Gentis Origine"] p. 129.) that Britain, Wales, and Cornwall, were the portion of Belinus, elder son of Dunwallo, and that that part of the Island, afterwards called England, was divided in three shares, viz. Britain, which reached from the Tweed, Westward, as far