Yes he deserves to be king, because at the time of his birth, Merlin asked King Uther if Arthur should be the rightful heir to the throne, and Uther responds with yes. Therefore, it is his birth right that he becomes king.
Well... nobody really knows it was a very long time ago if he is really, but, i personally believe that king Arthur exists and that he will come back someday.
Though we know the estimated date of death (537 at the Battle of Camlann), we don't know when he was born. Of course this is all assuming he ever actually existed. -~Iolaos~-
Unknown! We do not even know if there was a King Arthur. Most historians believe the legend derives from a dark age warlord 5-6th century who halted the advance of the Saxon invaders across...