she returned to France in 1217, marrying Hugh X de Lusignan, a powerful Poitevin noble. William Marshal fell ill and died in April 1219. The replacement government was formed around a grouping of three senior ministers: Pandulf Verraccio, the replacement Papal legate; Peter des Roches; and Hubert de Burgh, a former justiciar. The three were appointed by a great council of the nobility at Oxford, and their government came to depend on these councils for authority. Hubert and des Roches were political rivals, with Hubert supported by a network of English barons, and des Roches backed by nobles from the royal territories in Poitou and Touraine. Hubert moved decisively against des Roches in 1221, accusing him of treason and removing him as the King's guardian; the Bishop left England for the crusades. Pandulf was recalled by Rome the same year, leaving Hubert as the dominant force in Henry's government. Initially the new government had little success, but in 1220, the fortunes of Henry's government began to improve. The Pope allowed Henry to be crowned for a second time, using a new set of royal regalia. The fresh coronation was intended to affirm the authority of the King; Henry promised to restore the powers of the Crown, and the barons swore that they would give back the royal castles and pay their debts to the Crown, on the threat of excommunication. Hubert, accompanied by Henry, moved into Wales to suppress Llywelyn in 1223, and in England his forces steadily reclaimed Henry's castles. The effort against the remaining recalcitrant barons came to a head in 1224 with the siege of Bedford Castle, which Henry and Hubert besieged for eight weeks; when it finally fell, almost all of the garrison were executed and the castle was methodically slighted. Meanwhile, Louis VIII of France allied himself with Hugh de Lusignan and invaded first Poitou and then Gascony. Henry's army in Poitou was under-resourced and lacked support from the Poitevin barons, many of whom had felt abandoned during the years of Henry's minority; as a result, the province quickly fell. It became clear that Gascony would also fall unless reinforcements were sent from England. In early 1225 a great council approved a tax of £40,000 to dispatch an army, which quickly retook Gascony. In exchange for agreeing to support Henry, the barons demanded that he reissue the Magna Carta and the Charter of the Forest.