Question: What Brittonic dialect was spoken in the kingdom who had the father of Owain mab Urien as king?
Sentence (from "Owain mab Urien"): In his legendary guise he is the main character in Chrétien de Troyes's "Yvain, the Knight of the Lion" and the Welsh Romance "Owain, or the Lady of the Fountain", which corresponds to Chrétien's poem.
Relevant evidence: No