Pontefract Castle earl becoming a martyr with his tomb at Pontefract Priory becoming a shrine. It next went to Henry, Duke of Lancaster and subsequently to John of Gaunt, third son of King Edward III. He made the castle his personal residence, spending vast amounts of money improving it. In the closing years of the 14th century, Richard II had banished John of Gaunt’s son Henry Bolingbroke, Duke of Hereford from the country and with the death of John of Gaunt, Duke of Lancaster in 1399, much of Bolingbroke's patrimony was being given away by Richard II to his favourites. The castle
Pontefract third siege, Pontefract inhabitants, fearing a fourth, petitioned Parliament for the castle to be slighted. In their view, the castle was a magnet for trouble, and in April 1649 demolition began. the ruins of the castle remain and are publicly accessible. Pontefract was the site of Pontefract Priory, a Cluniac priory founded in 1090 by Robert de Lacy dedicated to St John the Evangelist. The priory was dissolved by royal authority in 1539. The abbey maintained the Chartularies of St John, a collection of historic documents later discovered among family papers by Thomas Levett, the High Sheriff of Rutland and