Princess Gwenllian was the daughter of Llywelyn ap Gruffydd, the last native prince of Wales, and his wife Eleanor de Monfort, who died soon after Gwenllian's birth in 1282. Llywelyn was killed by the forces of Edward I later in the same year.
The story begins with Gwenllian's birth at Abergwyngregyn on the southern shore of the Menai Straits. Across the straits in Anglesey, her mother, grandmother and great grandmother lie buried in the Franciscan Priory at Llanfaes.
As a baby, Princess Gwenllian was taken to the Gilbertine Priory at Sempringham in Lincolnshire at the command of Edward I. She remained there until her death on the 7th June, 1337.
Her memory had almost vanished from history but in recent years her story has captured the imagination of the people of Wales and of Lincolnshire where she is now commemorated at Sempringham by a memorial hewn out of Penmaenmawr granite.