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
Gilbert Denys William Dennis in 1701, last of the male line. Following Gaunt's death in 1399, Denys joined the retinue of Edmund, Earl of Stafford(d.1403), and probably fought with the Earl in Henry IV's campaign against the Scots in 1400. In 1403 he was appointed by the King as constable of the late Earl of Stafford's Newport Castle, Monmouth, in charge of 80 archers and 40 lances, specifically to resist the rebellion of Glendower. Having been discouraged from attacking nearby Chepstow Castle, a far larger fortification, Glendower turned his force on Newport, which Denys's force was clearly unable to resist, for the