Berkhamsted Castle was taken prisoner at the Battle of Poitiers. When the Black Prince fell ill following his campaigning in France, he retired to Berkhamsted and died there in 1376. Richard II inherited Berkamsted Castle in 1377; initially the use of it was given to his favourite, Robert de Vere and, after de Vere's fall from power and exile in 1388, to John Holland. Henry IV lived in the castle after he deposed Richard in 1400, and he used the property to detain rival applicants to the throne. During this period Geoffrey Chaucer, later famous for his "Canterbury Tales", oversaw renovation work
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