 Prince of North Wales Llewellyn Ap Gruffydd Prince of North Wales, son of Prince of Wales Gruffydd Ap Llewellyn Prince of Wales and Ealdgyth (Edith) 'Swan Neck' of Mercia.Born ± 1040 Married/ Related to:  Agatha of Mercia, daughter of Alfgar III Earl of Mercia and Elfgifu Princess of England.Born 1044, died UNKNOWN | |||