
1) British traditional history 2) Legendary British king
Found on
https://www.crosswordclues.com/clue/fulgenius

Fulgenius was a legendary king of the Britons, mentioned in Geoffrey of Monmouth` pseudohistorical Historia Regum Britanniae. He was the first of the three sons of Cherin to succeed his father, and was followed by his brothers, first Edadus then Andragius. ...
Found on
http://en.wikipedia.org/wiki/Fulgenius
No exact match found.