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
Prince of Wales regard as having been the last native Prince. On 16 September 1400, he was proclaimed Prince of Wales by his supporters, and held parliaments at Harlech Castle and elsewhere during his revolt, which encompassed all of Wales. It was not until 1409 that his revolt in quest of Welsh independence was suppressed by Henry IV. The tradition of conferring the title "Prince of Wales" on the heir apparent of the monarch is usually considered to have begun in 1301, when King Edward I of England invested his son Edward of Caernarfon with the title at a Parliament held in Lincoln.