leadership of Manuel's grandfather and father. Nevertheless, the empire continued to face formidable challenges. At the end of the 11th century, the Normans of Sicily had removed Italy from the control of the Byzantine emperor. The Seljuk Turks had done the same with central Anatolia. And in the Levant, a new force had appeared—the Crusader states—which presented the Byzantine Empire with new challenges. Now, more than at any time during the preceding centuries, the task facing the emperor was daunting indeed. Second Crusade and Raynald of Châtillon Prince of Antioch The first test of Manuel's reign came in 1144, when he was faced with a demand by Raymond, Prince of Antioch for the cession of Cilician territories. However, later that year the crusader County of Edessa was engulfed by the tide of a resurgent Islamic jihad under Imad ad-Din Zengi. Raymond realized that immediate help from the west was out of the question. With his eastern flank now dangerously exposed to this new threat, there seemed little option but for him to prepare for a humiliating visit to Constantinople. Swallowing his pride, he made the journey north to submit to Manuel and ask for protection. He was promised the support that he had requested, and his allegiance to Byzantium was secured. Expedition against Konya In 1146 Manuel assembled his army at the military base Lopadion and set out on a punitive expedition against Mas'ud, the Sultan of Rûm, who had been repeatedly violating the frontiers of the Empire in western Anatolia and Cilicia. There was no attempt at a systematic conquest of territory, but Manuel's army defeated the Turks at Acroënus, before capturing and destroying the fortified town of Philomelion, removing its remaining Christian population. The Byzantine forces reached Masud's capital, Konya, and ravaged the area around the city, but could not assault its walls. Among Manuel's motives for mounting this razzia there included a wish to be seen in the West as actively espousing the crusading ideal; Kinnamos also attributed to Manuel a desire to show off his martial prowess to his new bride. While on this campaign Manuel received a letter from Louis VII of France announcing his intention of leading an army to the relief of the crusader states. Arrival of the Crusaders Manuel was prevented from capitalising on his conquests by events in the Balkans that urgently required his presence. In 1147 he granted a passage