Charlemagne was also known as Carolus Magnus. Both can be translated to Charles the Great. He was king of the Franks and Emperor of the Romans from 800 to 814.
He can choose any of his given names. Thus he could be Charles III, Philip I, Arthur I, or George VII. It is conventional wisdom that he will choose George VII, in honor of his grandfather.
Charles the Great (better known to the Western world by his French name, Charlemagne) was king of France. But, like most kings during the Middle ages he was not content to remain king of such a small...