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
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