And, indeed, it was now clear that the barons were ready to go all lengths. In vain the king had taken the cross; in vain he sent to Rome and invoked the mediation of the Pope. Nothing daunted them. On Easter week they gathered from various quarters in Lincolnshire, assembled at Stamford, and from Stamford removed to Brackley with two thousand knights, who, with squires and men-at-arms, made up a formidable feudal army. At Brackley they halted to deliberate before laying siege to Northampton, which is situated about fifteen miles from Brackley. Naturally enough, John felt much alarm when he learned that his enemies were at the head of such a force as he could not cope with; but at this crisis he was not deserted. Not only the Nevilles, but the great Earls of Pembroke and Salisbury and Warren remained faithful in the day of adversity; and faithful also remained many chevaliers and gentlemen, who, without any personal liking for John, and without any of the young Icingla’s hereditary veneration for the memory of St. Edward, were yet determined to stand by the king and fight for the Confessor’s crown. However, it was necessary to take some steps to avert civil war if possible; and John, having summoned Archbishop Langton, sent him, in company with Pembroke and Warren, to hold a conference with the barons at Brackley, and offer to refer their dispute to arbitration. But they found the insurgents in no compromising mood. Producing the petition which, on the day of Epiphany, had been presented to the king in the house of the Templars, they recited the chief articles. “These are our claims,” said the barons, sternly, as they handed the petition to Langton; “and, if we do not receive full satisfaction, we appeal to the God of Battles.” The primate and the two earls returned to the king, and Langton, with the petition in his hand, explained its contents, and related what the barons had said. “By God’s teeth!” exclaimed John, losing his temper, when calmness was so necessary, “I will not grant these men liberties which would make me their slave. Why do they not likewise demand my crown?” Without delay Langton carried the king’s answer to Brackley; and the barons, fortified by the counsels and support of the primate, resolved to hesitate no longer. Calling themselves “the army of God and the Church,” they chose Robert Fitzwalter as their general-in-chief, and, raising the standard of revolt, advanced to Northampton in feudal array. But Northampton did not, as they probably anticipated, open its gates to admit them. Defended by a strong castle, and walls built after the Conquest by Simon St. Litz, and strongly garrisoned with Royalists, the town held out gallantly, and for a whole fortnight defied all their assaults so successfully that they lost patience. “We are wasting our strength here,” said some, “and giving the king time to take measures for our destruction.”