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
Conwy Castle 12 August 1399, after returning from Ireland, Richard made his way to the castle where he met Bolingbroke's emissary, Henry Percy, for negotiations. Percy swore in the chapel he would not harm the king. On 19 August, Richard surrendered to Percy at Flint Castle, promising to abdicate if his life were spared. The king was then taken to London and died later in captivity at Pontefract Castle. Henry Bolingbroke took the English throne to rule as Henry IV in 1400, but rebellion broke out in North Wales shortly afterwards under the leadership of Owain Glyndŵr. In March 1401, Rhys ap