Edward's authority collapsed in England where, in his absence, Isabella's faction took over the administration with the support of the Church. Her forces surrounded Bristol, where Hugh Despenser the Elder had taken shelter; he surrendered and was promptly executed. Edward and Hugh the Younger fled their castle around 2 November, leaving behind jewellery, considerable supplies, and at least £13,000 in cash, possibly once again hoping to reach Ireland, but on 16 November they were betrayed and captured by a search party north of Caerphilly. Edward was escorted first to Monmouth Castle, and from there back into England, where he was held at the Earl of Lancaster's fortress at Kenilworth. Edward's final remaining forces, by now besieged in Caerphilly Castle, surrendered after five months in April 1327.