When the army of the Count de Perche had been routed at Lincoln during Whitsuntide, and the armament of Eustace the Monk destroyed at the mouth of the Thames, on St. Bartholomew’s Day, the position of Prince Louis became desperate, and he felt infinitely more eager to get out of England without dishonour than he had felt to invade it a year earlier. But this proved no easy business; and the prince had to pass several months of such intense anxiety as he was little prepared to experience. On hearing of the catastrophe of Lincoln, Louis immediately abandoned the siege of Dover, and made for London, perhaps still hoping against hope. But even in the capital, which had been his stronghold, he soon discovered that he was the reverse of secure. Plots and conspiracies to drive out the French were almost every week brought to light, and countenanced by many who had once shouted most loudly, “All hail, Lord Louis!” Constantine Fitzarnulph, indeed, continued true to the end; but, as a body, the rich citizens were most anxious to get out of the scrape into which they had been beguiled by the confederate barons who at Lincoln had surrendered like so many sheep. Such being the state of affairs, Louis never knew what a day might bring forth; and he became somewhat apprehensive of consequences, as he informed Philip Augustus by letter, saying, at the same time, “Our losses are brought on by God more than by man.” The King of France, somewhat alarmed, summoned the messengers of Louis to his presence. “Does William Marshal still live?” asked he. “Yes, sire,” answered they. “Then,” said Philip, much relieved, “I have no fears for my son.” The French king was so far right that the adversaries of Prince Louis had now much more compassion for him than his friends, who blamed him for all their misfortunes; and Pembroke was as moderate in the day of triumph as he had been inflexible in the day of adversity. But he did not, therefore, fail in his duty to the young king or to the country, the affairs of which, as protector, he had undertaken to administer. He was a man who understood not only how to conquer but how to conciliate; and in order to begin the work of conciliation he felt strongly the necessity of ridding England of the invaders without any unnecessary delay. Therefore he marched his army on London, while the mariners of the Cinque Ports sailed into the Thames, and, beleaguering the city both by land and water, so that no provisions could enter it, he reduced the French prince to such extreme distress that he shouted out very earnestly for peace. Accordingly a conference was appointed with a view of settling the terms on which peace was to be concluded.