Edward II of England formally ended Edward's reign. A proclamation was sent to London, announcing that Edward, now known just as Edward of Caernarvon, had freely resigned his kingdom and that Prince Edward would succeed him. The coronation took place at Westminster Abbey on 2 February 1327. Those opposed to the new government began to make plans to free Edward, and Roger Mortimer decided to move Edward to the more secure location of Berkeley Castle in Gloucestershire, where the former King arrived around 5 April 1327. Once at the castle, Edward was kept in the custody of Mortimer's son-in-law, Thomas Berkeley, and John Maltravers,
Joan de Geneville, 2nd Baroness Geneville worse privations having been locked up inside various religious houses with even less money at their disposal. Joan was transferred from Skipton to Pontefract Castle in July 1326. Mortimer and Isabella landed in England two months later in September 1326, and they joined forces with Henry, 3rd Earl of Lancaster. On 16 November, King Edward was taken prisoner and eventually murdered at Berkeley Castle, presumably by Mortimer's hired assassins. From 1327 to 1330, Mortimer and Isabella jointly held the Office of Regent for her son, King Edward III who was duly crowned following his father's death. Mortimer was made constable