While Henry VII took England’s throne by conquest in the defeat of his distant cousin Richard III in the House of York, the need to cement his claim was immense. While Henry VII was descended from King Edward III, he also wanted to assert more ancestry than that. He had genealogists trace his descent back to the legendary King Arthur, and thus he named his first son Arthur (who died tragically in his teenage years) and had him born in Winchester which at the time was believed to be where the Camelot of legend was located.