 Hostilities did not end with the publication of the Dictum . The garrison at Kenilworth refused to accept the terms given , and held out until 14 December , when deprivation forced them to surrender . In April 1267 , the earl of Gloucester – who had been central both to the royal victory at Evesham and to the drafting of the Dictum – turned against the king . He occupied the city of London , and set himself up as the champion of the disinherited . After negotiations involving both Edward and Ottobuono , Gloucester relented , and by June a settlement was reached . Gloucester had forced a change to the conditions of the Dictum , whereby the disinherited were allowed to recover their lands before they had paid their fines rather than after ; an arrangement that made repayment much easier . In the summer of that year , Prince Edward moved at the Isle of Ely , where the last of the rebels still held out , and forced them into submission under terms favourable to the rebels . 
