NIGHTBRINGER | The Arthurian Encyclopedia

Enniaun


According to Geoffrey of Monmouth, a king of Britain in the third or second century BC.

He was the son of King Arthgallo. He succeeded his brother, King Margan.

He ruled tyrannically, was deposed by is own nobles, and was succeeded by his cousin Idwallo.


Source
Historia Regum Britanniae | Geoffrey of Monmouth, c. 1138