Who Was the Real King Arthur?

The author David Carroll believes he has found proof that the legendary King Arthur was actually the son of a sixth-century Scottish king - and he is offering £50,000 to anyone who can prove him wrong. Pointing to a 1,300-year-old Swiss manuscript, Carroll claims he has "irrefutable proof" that King Arthur was in fact a man named Arturius, the son of a sixth-century Scottish king called Aiden