Such was the tenor of the Treaty of Troyes, so glorious to Henry, yet so impracticable of accomplishment, that it must be doubted whether there was any sincerity in the French signers of it. To be avenged of the dauphin, and to crush him by the assistance of England, was evidently the foremost thought, the first desire. But it is scarcely credible that the duke of Burgundy looked forward to continuing, after the accomplishment of his vengeance, the faithful vassal of the house of Lancaster. The arrangement of one king governing the two countries was plainly impracticable. And that Henry himself could have entertained it only shows how the most vigorous intellects may allow their perspicacity and sense to be clouded by success and superstition. He was well aware that his new position could only be preserved by force of arms. On the occasion of his marriage with the princess Catherine, which took place on June 2nd, the knights of both countries were for celebrating the event by a tournament. But he forbade the rival combat, and told those who proposed it to join him in the siege of Sens, where they might exercise their prowess against the Armagnacs. Sens made but a trifling resistance.[h] Next, this implacable hunter of men hurried to Montereau, and not being able to reduce the castle, he had his prisoners hanged by the ditch sides. With all his impetuosity he was forced to have patience before Melun, where the brave Barbazan detained him many months. The king of England, employing all the means of which he could avail himself, took Charles VI and the two queens to the siege, presenting himself as the son-in-law of the king of France, speaking in his father-in-law’s name, and using his wife as a bait and a snare. All these clever devices were ineffectual. The besieged resisted valiantly; obstinate conflicts took place round the walls, and beneath them, in the mines and countermines, and Henry did not spare his own person. At last, however, provisions failed, and the garrison were constrained to surrender. Henry, according to his custom, accepted the capitulation, and put to death several citizens, all the Scotchmen who were in the place, and even two monks. During the siege he had got the Burgundians to deliver up to him Paris and the four fortresses, Vincennes, the Bastille, the Louvre, and the Tour de Nesle. He made his entry in December, riding between the king of France and the duke of Burgundy. The latter was dressed in mourning, in token of grief and vengeance, perhaps also from a feeling of shame for the unworthy part he played in thus introducing the foreigner. The king of England was accompanied by his brothers, the dukes of Clarence and Bedford, the duke of Exeter, the earl of Warwick, and all his lords. The king of England was well received in Paris. He entered into formal possession as regent of France, by assembling the estates on the 6th of December, 1420, and making them sanction the Treaty of Troyes.