 The parliament bought temporary calm but opposition grew once more , particularly as Montfort and his immediate family began to <unk> a huge personal fortune . Prince Edward escaped his captors in May and formed a new army , resulting in a fresh outbreak of civil war . Edward pursued <unk> 's forces through the Welsh Marches , before striking east to attack his fortress at <unk> and then turning once more on the rebel leader himself . Montfort , accompanied by the captive Henry , was unable to retreat and the Battle of Evesham ensued . Edward was triumphant and Montfort 's corpse was <unk> by the victors . In places the now <unk> rebellion dragged on , with some rebels gathering at <unk> , which Henry and Edward took after a long siege in <unk> . The remaining pockets of resistance were <unk> up , and the final rebels , holed up on the Isle of Ely , surrendered in July <unk> , marking the end of the war . 
