In spite of the frank opposition of John of Brienne, {207} Pelagius now determined to lead the host to the further conquest of Egypt, and a march on Cairo began. Once more the terrified Sultan offered them the same terms, and once more, being, as Philip of France contemptuously said, "so daft as to prefer a town to a kingdom," they refused to give up Damietta, and pursued their way. Too late repentance came; for the Nile rose with its usual rapidity, the sluices were opened by the Egyptians, the camp was surrounded by water, and baggage and tents were washed away. The unfortunate Crusaders, caught in a trap, were at the mercy of their foes, and were thankful when the Sultan, in pity, offered to let them go free if they would surrender Damietta. They could but agree, since they knew that it required all the little authority that the young Sultan had at his command to prevent his chieftains condemning the whole host to destruction. As it was, the latter were perishing of famine, and tears flowed down the cheeks of John of Brienne, when led as hostage to the Sultan's tent, as he remembered their distress. With that generosity which marks the whole family of Saladin, the Sultan, when he discovered the cause of his grief, at once sent the starving multitude a large store of food. Thus in darkness and disgrace ended the first part of the Sixth Crusade, which so far had gained nothing but an ill reputation for the Crusaders who had taken part in it. The leader of the second part of the Sixth Crusade was made of very different stuff from Andrew of Hungary or John of Brienne. When Frederick II., grandson of the great Barbarossa, had been summoned, some eight years before this time, from the leafy groves of his kingdom of Sicily, to be emperor in place of the rebellious Otho, he {208} had taken the cross and promised to lead an army to the Holy Land at the earliest opportunity. But Otho did not take his deposition quietly, and during the next few years Frederick had his hands too full in his own dominions to fulfil his vow. After Otho's death, two years later than that of the ambitious and energetic Pope Innocent, the new Pope, Honorius, besought the young Emperor to listen to the bitter cry for help which once more came from across the sea. At that time, however, Frederick was completely absorbed in ambitious schemes for himself and his family. The Pope's influence was strong, however, and it seemed clear that his friendship was absolutely necessary to Frederick's schemes. The position of the Emperor had never been universally acknowledged in past years, and it was now proposed that Honorius should publicly crown Frederick at St Peter's at Rome. This was done in all good faith and fellowship. "Never did Pope love Emperor as he loved his son Frederick," said Honorius as he parted from him after the coronation, with the promise ringing in his ears that the German army should be ready to start on the Crusade during the following year.