Jonas, Prince of Domnonée
Jonas was the son of Prince Deroch
II. It was during his early 6th century reign, that
Domnonée fell victim to the uncontrollable greed of King Conomor alias Mark
of Cerniw & Poher. Under the guise of friendship, Conomor managed to both
murder poor Jonas and marry his pretty young widow, the daughter of King Budic
II of Brittany. His son, Judwal,
eventually managed to reclaim the throne.
He is probably to be identified with
Iona, King of France as mentioned in the Arthurian story of "Culhwch
and Olwen" in the Mabinogion.