King Arthur is a knight from the medieval age and is supposedly the greatest knight in the world now and then. You can find King Arthur in many books like the King Arthur trilogy and in lots of movies or series like one of my favourites merlin. The picture above is the King Arthur from merlin. In the myths about King Arthur he finds a legendary sword called axcalivar that aids him in his quest to serve Camelot. Camelot is King Arthur's castle that he is a noble prince until he is crowned King.