It is remarkable, also, that the success of the Latins was not due solely to hard fighting, but was also brought about by the policy of their leaders. Melek el Afḍal, the vizier of the Fâṭemite khalîfah El Must’aîla, was eager to ally himself with the Latins against the Turks, but was dissuaded by the emperor Alexius Comnenos.[498] El Ghâzi, son of Ortok, sought aid of the Crusaders, at Mardîn, against Radhwân, son of Tutush, his rightful lord at Aleppo. Tancred took the side of Radhwân, but Baldwin I. (in 1110 A. D.) accepted the aid of El Ghâzi against the Seljuks of Môsul; and Roger of Antioch was allied, in 1115, to this same son of Ortok, whose misgovernment of Jerusalem had been the immediate cause of the Crusade. Treaties with Moslems were made by Godfrey and by his successors, and after the fall of the county of Edessa, in 1146 A. D., the Latins were often in peaceful relations with the sulṭân of Aleppo and Damascus. In 1127 ’Imâd ed Dîn Zanghi, the atabek (or “father chief”) who had become Emîr of Emîrs, as protector of the ’Abbaside khalîfah, was a formidable foe of the Latins,[499] and under his son Nûr ed Dîn (1146–74 A. D.), who ruled the West, while his elder brother Ḳutb ed Dîn ruled in Môsul, it became evident that there was no prospect of enlarging the borders of the kingdom of Jerusalem. There was a tacit understanding that the Afrîn, the Orontes, and the Jordan, were to mark the boundaries of the Franks, who never occupied Aleppo or Damascus, but held a precarious sway in Gilead and Moab. [Sidenote: THE CITY STORMED]