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,
Thomas de Berkeley, 5th Baron Berkeley to that of his contemporary Sir Maurice Russell (d.1416) at Dyrham, who was the father-in-law of Gilbert Denys, one of Berkeley's feoffees. Having died without male progeny the succession to the vast Berkeley estates became disputed, and eventually resulted in the Battle of Nibley Green (1469/70), the last battle fought in England entirely between the private armies of feudal magnates, fought near Berkeley Castle on 20 March 1469/70 between the troops of Thomas Talbot, 2nd Viscount Lisle and William Berkeley, 2nd Baron Berkeley, later 1st Marquess of Berkeley. Lisle and William Berkeley had long been engaged in a dispute over