Richard Coeur de Lion, soon after his arrival before Acre, was seized with the fever of the country, and in the attack made upon the town by Philip Augustus the English monarch was not present.[693] Philip murmured highly, and his assault was repulsed from the want of sufficient forces to follow up his first advantage. Richard in his turn attempted to storm the city without the aid of France, and notwithstanding efforts of almost incredible valour, was likewise repelled. Mutual necessity brought some degree of concord; and it was agreed that while one army assailed the walls the other should guard the camp, but still the endeavours of both were ineffectual to take the town by storm; and continual disputes were every day springing up between the two monarchs and the two hosts. Philip strove to seduce the vassals of Richard to follow his banner, as the sovereign of their sovereign, and paid three pieces of gold per month to each of the Norman knights who would join his standard:[694] Richard gave four pieces of gold to all who came over from Philip, and many a French feudatory joined himself to the English king. The siege of Acre still advanced, notwithstanding, less indeed by the presence or efforts of the two sovereigns, than by the simple fact of the city being cut off from all supplies. It had now held out for many months; and for long had endured but little privation from its communication with the sea; but as one article of the first necessity after another became exhausted, that means of receiving provisions was not sufficiently productive or regular for the supply of a great city. Even when ships arrived the town was in a state of scarcity, and a day's delay brought on a famine. Acre could resist no longer,[695] and after a short truce, which was asked in the hope of assistance from Egypt, it surrendered to the monarchs of France and England, on very rigorous terms. All the Christian prisoners within the town were to be freed, together with one thousand men and two hundred knights, chosen from those that Saladin detained in captivity; two hundred thousand pieces of gold were to be paid, and the true Cross was to be restored to the Christians. Such was the only capitulation granted to the people of Acre, who were also to remain in the hands of the crusaders till the stipulations had been fulfilled by Saladin; and in case the conditions were not accomplished within forty days, the prisoners were left to the disposal of their conquerors.