Nightbringer | The Arthurian Online Encyclopedia

Muirchetach mac Erca

Muircheartach, Murcheartach

A king who, according to historian John Morris, ruled in southern Ireland, at Tara, from 482 to 532.

Morris thought him a contemporary of Arthur, and the dates do seem to fit. He seems to have been the prototype for the various characters called Marhalt and Marhaus in Arthurian stories.