Thus attended, the king rode to Caudebec,--in which town it was resolved to lay siege to Harfleur; and in consequence, he advanced to Montivilliers, which is but half a league distant from Harfleur, and thence detached his lieutenant-general, the count de Dunois, to open the trenches. The count had with him the counts d'Eu, de Clermont, de Nevers, de Castres, with many men at arms, archers and franc archers, so that his force was estimated at six thousand men, without including the franc archers, who amounted to three thousand, or the cannoneers, labourers, and followers, or the mariners who blockaded the place with twenty-five large vessels, or those who had besieged the abbey of Graville, amounting, in the whole, to more than a thousand men. The siege was commenced on the 8th day of December, with many difficulties,--for there were neither houses nor trees near at hand, and the weather was more severe, by reason of frosts and inundations, than had been experienced for some time. The besiegers suffered also greatly from the sea, which at times destroyed their huts, which were composed only of earth covered with juniper branches. Sixteen large bombards were pointed against the walls, which the king came frequently from Montivilliers to see fired. Deep trenches of communication were formed, wherein the king often exposed his person, armed only with a light helmet and covering shield, to witness the effect of this battery against the walls. Covered trenches were carried to the very walls of Harfleur; and these mines and trenches were formed under the directions of master John Bureau, treasurer to the king, in conjunction with his brother Jasper, grand master of the royal artillery, both very expert and able in the sciences. Thomas Aurmagan[66], governor of Harfleur, and the English with him, to the amount of sixteen hundred, receiving pay, witnessing the great preparations of the king of France, opened a treaty with the count de Dunois, on the eve of Christmas-day, for the surrender of the place. On the morrow, the capitulation was signed,--and they were to march away with their baggage, and were allowed to transport their effects by land or sea, the term for so doing being limited to the first day of the year. Eight english gentlemen were given as hostages for the due performance of the treaty, who were sent under an escort to Montivilliers. On the first day of January, they were brought back to Harfleur, for the accomplishment of the treaty. About vespers, Thomas Aurmagan, the governor, presented the keys of the gates and towers to the count de Dunois, with much reverence and kneeling, in the presence of all the English, and even before master Sanice[67], who had brought a reinforcement of five hundred English just before the siege.