On August 1, 1664, the two armies met near to the Convent of St. Gotthard, which gave its name to a memorable battle. In spite of their great numerical superiority, the Ottomans met with a severe defeat, largely due to the charge of heavy cavalry of the Austrians, under the command of Prince Charles of Lorraine, soon to become famous as a general. The Turks lost ten thousand men, many of whom were driven into the River Raab and were drowned. Thirty thousand of their cavalry, who were spectators of the battle from the other side of the River Raab, took to flight when they saw the issue of the battle and abandoned fifteen guns. The Grand Vizier was able to draw off the main body of his army without further loss. The Austrian losses were heavy, and they made no effort to follow up their victory. The battle, however, was of supreme importance, for it was the first great defeat of the Ottomans in the field by the Austrians. It broke the prestige of the former, which had been unquestioned since the battle of Mohacz in 1526. In spite of their victory, the Austrians were willing to negotiate with the Grand Vizier for terms of peace, and ten days after the battle a treaty was signed at Vascar, where the Turks were encamped. It was, in the main, a renewal of the treaty of Silvatorok. So far as it differed, it was favourable to the Ottomans. It provided that Transylvania was to be evacuated by both Austrians and Turks. It recognized Apafy, whose claims had been maintained by the latter, as prince of that province, subject to payment of tribute to the Sultan. Serivar and Neuhausel were to remain in the hands of the Sultan. Of seven palatinates occupied by the Ottomans, four were to remain in their hands and three were to be restored to the Emperor. Ahmed Kiuprili had every reason to be satisfied with this treaty. Though defeated in a pitched battle, he had added to the Empire of the Sultan. He led his armies into winter quarters again at Belgrade at the end of October, and on his return to Constantinople received a popular ovation. In 1667 Ahmed entered upon another campaign. He was determined to bring to a successful issue the siege of Candia, which for so many years had baffled all the efforts of his predecessors. He landed in the island of Crete with large reinforcements. The city of Candia was defended with the utmost tenacity and courage by the Venetians, under the command of Morosini, later famous for the conquest of the Morea. Ahmed spent nearly three years before the city. He urged on the siege with great engineering skill. The Venetians made every effort to retain possession of the city and of the island by offers of large sums of money. Ahmed Kiuprili proudly replied to these overtures: “We are not money-dealers. We make war to win Candia, and at no price will we abandon it.”