Several Crusaders, whilst waiting for the signal of departure for Jerusalem, went to visit their brethren who had established themselves in the conquered cities. Many of them repaired to Baldwin, and joined with him in contending against the Saracens of Mesopotamia. A knight, named Foulque, who went with several of his companions to seek adventures on the banks of the Euphrates, was surprised and massacred by the Turks. His wife, whom he had taken with him, was brought before the emir of Hazart or Hezas. Being of rare beauty, one of the principal officers of the emir fell in love with her,[136] and asked her of his master in marriage, who yielded her to him, and permitted him to espouse her. This officer, deeply in love with a Christian woman, avoided all occasions of fighting against the Crusaders, and yet, zealous in the service of his master the emir, made incursions into the territories of the sultan of Aleppo. Redowan, wishing to avenge himself, marched with an army of forty thousand men to attack the city of Hezas. Then the officer who had married the widow of Foulque advised the emir to implore the assistance of the Christians. The emir proposed an alliance to Godfrey de Bouillon. Godfrey at first hesitated, but the Mussulman returned to the charge, and to disperse all the suspicions of the Christian princes, sent them his son Mahomet as an hostage. The treaty was then signed, and two pigeons, says a Latin historian, charged with a letter, brought the news to the emir, at the same time announcing to him the early arrival of the Christians.[137] The army of the sultan of Aleppo was beaten in several encounters by Godfrey, and forced to abandon the territory of Hezas, that it had begun to pillage. A short time after this expedition the son of the emir died at Antioch of the epidemic so fatal to the pilgrims of the West. Godfrey, according to the custom of the Mussulmans, had the body of the young prince enveloped in rich purple stuff, and sent it to his father. The deputies who accompanied this funeral convoy were ordered to express to the emir the regrets of Godfrey, and to tell him that their leader had been as much afflicted by the death of the young prince Mahomet, as he could have been by that of his brother Baldwin. The emir of Hezas wept for the death of his son, and never ceased to be the faithful ally of the Christians.