Note 19a — Chapter II · JOURNEY THROUGH HAY AND BRECHEINIA
Reading edition
Iestyn ap Gwrgant was lord of the province of Morganwg, or Glamorgan, and a formidable rival to Rhys ap Tewdwr, prince of South Wales; but unable to cope with him in power, he prevailed on Robert Fitzhamon, a Norman knight, to come to his assistance.