A king of Britain in the twelfth century BC.
When Mepricius’s father, King Maddan, died, Mempricius killed his brother Malim to secure the throne for himself. He ruled in tyranny and lechery until he was killed by a pack of wolves while hunting.
His son, Ebraucus, succeeded him.
Source
Historia Regum Britanniae | Geoffrey of Monmouth, c. 1138