Lucius Artorius Castus (fl. mid-late 2nd century AD or early-to-mid 3rd century AD) was a Roman military commander. A member of the gens Artoria (possibly of Messapic or Etruscan origin), he has been suggested as a potential historical basis for King Arthur.
Read more about Lucius Artorius Castus: Military Career According To Sources, Identification With King Arthur