Who is King Uryens wife?

Morgawse had married King Lot of Orkney, Elaine (Blasine) was married to King Nentres of Garlot, while Morgan was wife of King Urien of Gorre, brother of Lot. Arthur said to have no children from his wife Guinevere, except for in Perlesvaus, where Lohot was their son, and Guinevere is his mother.