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 In order to attach John, Duke of Brabant, to his cause, the king in 1339 proposed a marriage between the young Duke of Cornwall and John's daughter Margaret, and in the spring of 1345 wrote urgently to Pope Clement VI for a dispensation for this marriage. On 12 May 1343, Edward created the duke Prince of Wales, in a parliament held at Westminster, investing him with a circlet, gold ring, and silver rod. The prince accompanied his father to Sluys on 3 July 1345, and Edward tried to persuade the burgomasters of Ghent, Bruges, and Ypres to accept his son