Berkhamsted of the monastic order of Bonhommes, in 1283. In 1300, after Edmund died, Edward I - aka 'Longshanks' took the castle and subsequently granted it to his second queen, Margaret of France. In 1309, Edward I and Margaret's son, Edward II, granted Berkhamsted to his favourite, Piers Gaveston; afterwards In 1317, the castle was given to Edward II's queen, Isabella of France. Edward III further developed the castle and gave it to his son, Edward, the Black Prince, who expanded the hunting grounds. By tradition, Berkhamsted Castle still belongs to the eldest son of the reigning English monarch, via the
Edward the Black Prince he returned to England, leaving John in charge of Sir Walter Manny and three other knights. He accompanied his father to Calais on 9 October to assist at the liberation of King John and the ratification of the treaty. He rode with John to Boulogne, where he made his offering in the Church of the Virgin. He returned with King Edward to England at the beginning of November. On 10 October 1361 the prince, now in his 31st year, married his cousin Joan, countess of Kent, daughter of Edmund of Woodstock, Earl of Kent, younger son of Edward I, and