allied with another nomadic group, the Cumans, to aid him, resulting in the annihilation of the Pecheneg horde at the Battle of Levounion on 28 April 1091. Alexios I soon took perhaps his most important action as Emperor when he called on Pope Urban II for help in combating the Muslims of Anatolia and the Levant. Alexios particularly hoped to recover Syria and other areas that had been part of the Byzantine Empire in previous centuries. He succeeded in his attempt to rally Western European support, as a surprisingly large contingent of crusaders under Godfrey of Bouillon (among other European nobles) set off from Western Europe and journeyed through Anatolia all the way to their eventual destination of Jerusalem. While relations between crusaders and Byzantines were not always cordial, the coordination between the two armies was instrumental in capturing many important cities in Asia Minor and eventually Jerusalem itself. Between 1097 and 1101 Alexios managed to recover Nicaea, Rhodes, and Ephesus, while also making Antioch his vassal. This brought the Empire to its largest extent since before Manzikert in 1071. In order to achieve these important military victories, however, Alexios had to resort to drastic measures in order to keep the empire financially afloat amidst so many military expeditions. He did this by melting down many Church artifacts and selling Church lands, while also utilizing conscription to keep the army well-staffed. This led to a diminution of his popularity, but he was nonetheless successful in resurrecting the Byzantine Empire by the time of his death in 1118. John II Komnenos (1118–1143) John continued Alexios' military successes and was known throughout his reign to be a kind and cautious commander who never risked Byzantine forces in huge pitched engagements that could have resulted in large catastrophes. Instead, he methodically retook fortresses throughout Anatolia during his reign. Progress was slow and gradual, however, because the Turks in the area were strong and the Byzantine military was not yet at its former heights. Nevertheless, John made steady progress throughout his reign on the Anatolian front, eventually conquering a road to Antioch so that he could keep watch over the Crusader princes who ruled it. On the Balkan front John achieved a crushing victory over the Pechenegs at the Battle of Beroia in 1122. His victory at Beroia was so decisive that afterwards the Pechenegs ceased to be an independent people and disappeared from