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 Castle was succeeded by his eldest son, John. However, the King took possession of Castle Donington and Pontefract Castle. The de Lacys lived in the castle until the early 14th century. It was under the tenure of the de Lacys that the magnificent multilobate donjon was built. In 1311 the castle passed by marriage to the estates of the House of Lancaster. Thomas, Earl of Lancaster (1278–1322) was beheaded outside the castle walls six days after his defeat at the Battle of Boroughbridge, a sentence placed on him by King Edward II himself in the great hall. This resulted in the