The noblest monument of a conqueror's fame, and of the terror which he inspired, is the Saladine tenth, a general tax which was imposed on the laity, and even the clergy, of the Latin church, for the service of the holy war. The practice was too lucrative to expire with the occasion: and this tribute became the foundation of all the tithes and tenths on ecclesiastical benefices, which have been granted by the Roman pontiffs to Catholic sovereigns, or reserved for the immediate use of the apostolic see. [83] This pecuniary emolument must have tended to increase the interest of the popes in the recovery of Palestine: after the death of Saladin, they preached the crusade, by their epistles, their legates, and their missionaries; and the accomplishment of the pious work might have been expected from the zeal and talents of Innocent the Third. [84] Under that young and ambitious priest, the successors of St. Peter attained the full meridian of their greatness: and in a reign of eighteen years, he exercised a despotic command over the emperors and kings, whom he raised and deposed; over the nations, whom an interdict of months or years deprived, for the offence of their rulers, of the exercise of Christian worship. In the council of the Lateran he acted as the ecclesiastical, almost as the temporal, sovereign of the East and West. It was at the feet of his legate that John of England surrendered his crown; and Innocent may boast of the two most signal triumphs over sense and humanity, the establishment of transubstantiation, and the origin of the inquisition. At his voice, two crusades, the fourth and the fifth, were undertaken; but, except a king of Hungary, the princes of the second order were at the head of the pilgrims: the forces were inadequate to the design; nor did the effects correspond with the hopes and wishes of the pope and the people. The fourth crusade was diverted from Syria to Constantinople; and the conquest of the Greek or Roman empire by the Latins will form the proper and important subject of the next chapter. In the fifth, [85] two hundred thousand Franks were landed at the eastern mouth of the Nile. They reasonably hoped that Palestine must be subdued in Egypt, the seat and storehouse of the sultan; and, after a siege of sixteen months, the Moslems deplored the loss of Damietta. But the Christian army was ruined by the pride and insolence of the legate Pelagius, who, in the pope's name, assumed the character of general: the sickly Franks were encompassed by the waters of the Nile and the Oriental forces; and it was by the evacuation of Damietta that they obtained a safe retreat, some concessions for the pilgrims, and the tardy restitution of the doubtful relic of the true cross. The failure may in some measure be ascribed to the abuse and multiplication of the crusades, which were preached at the same time against the Pagans of Livonia, the Moors of Spain, the Albigeois of France, and the kings of