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
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