Vrbain
A knight defeated by Perceval at the Perilous Ford in the Didot-Perceval.
His lover was a fairy, and she sent a flock of birds to attack Perceval, but he defeated both Urbain and the birds. The birds spirited Urbain away. Urbain was the son of the Queen of the Black Thorn.
His name may be a variation of Urien.
Source
Didot-Perceval | c. 1220-1230