English and British royal mistress her. Richard II (6 January 1367– February 1400) was King of England from 1377 until he was deposed on 30 September 1399. A member of the close circle around the king was Robert De Vere, Earl of Oxford (Aubrey De Vere's nephew), who emerged as the King's favourite. De Vere's lineage, while an ancient one, was relatively modest in the peerage of England. Richard's close friendship to De Vere was disagreeable to the political establishment and this displeasure was exacerbated by the earl's elevation to the new title of Duke of Ireland in 1386. The chronicler Thomas Walsingham suggested the
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