Guithelin

Guithelin
King of Britain
PredecessorGurguit Barbtruc
SuccessorMarcia (Regent);
Sisillius II
SpouseMarcia
IssueSisillius I
FatherGurguit Barbtruc

Guithelin was a legendary king of the Britons as accounted by Geoffrey of Monmouth. He became king after the death of Gurguit Barbtruc[1] and reigned approximately 379 BC.

He ruled liberally and temperately for his life. His Queen consort was an artisan and noblewoman named Marcia; when he died, his wife took over the government as regent for their son, Sisillius II.[2]