Was pub built on Welsh prince's grave?

CARDIFF, Wales, Aug. 8 (UPI) -- Welsh historians say that a story that the country's last independent prince was buried on monastery land under what is now a pub could be true.

Llywelyn ap Gruffudd was killed in 1282 during a rebellion against King Edward I. The king made his infant son, later Edward II, Prince of Wales after promising the Welsh a ruler who spoke no English.

Llywelyn's burial site is unknown. But Dr. John Davies of the Abbey Cwmhir Heritage Trust told the Western Mail that the site of the pub on the Llanrumney Housing Estate in Cardiff is a likely spot.

The site has an interesting history. It was given to the Franciscans by Edward I's son-in-law and was later the residence of Sir Henry Morgan, one of the most notorious buccaneers. John Hodder Moggridge, who owned Llanrumney Hall in the early 19th century is said to have found a stone coffin containing a headless body concealed in a wall.

Davies said that the English king would not have wanted Llywelyn's grave to become a rallying place for the Welsh, and land belonging to monks who were in debt to his family would have been ideal for a secret burial place.