Did King Arthur really conquer the Roman Empire?

There may have been a Romano-British warleader called Arthur who temporarily united the Brythonic tribes of the former Roman province to repel the Saxon invaders, some time around 450 to 510 CE. If there was, he didn't conquer the Roman empire. read more

King Arthur is a legendary figure, his legends arose in a time called"The Dark Ages" - Rome had withdrawn it's troops from the Roman province of Britannia, and had not even conquered all the British mainland, and raids from Saxons, Angles and others began even before the Romans packed up and left. read more

Riothamus did both, assuming that he was a king in Britain as well as Armorica. Arthur is also said to have been betrayed by one of his advisors, and Riothamus was betrayed by one of his supposed allies. Finally, it is well known how King Arthur was carried off to Avalon (which Geoffrey of Monmouth spells"Avallon") before he died; Riothamus, escaping death, was last known to have been in the vicinity of a town called Avallon. read more

The popular literary King Arthur is thought by some historians to originate with a real but little-known figure called Riothamus who existed in post-Roman Britain in the 5th century AD, and who may also have been called Arturius. read more

Arthur could have invaded the northern realms of the Holy Roman Empire! Which, even by the standards of the most apologetic HRE fan, amounts to nothing more than a name, but I suppose at the time apart from the real Roman Empire in Constantinople that was the best a guy wanting to fight"Rome" could do. read more