40. The first to take the field was the illustrious German emperor, Frederick Barbarossa. Marching from Ratisbon at the bead of a magnificent army in 1189, he fought his way through the Greek dominions, advanced through Asia Minor, conquering as he went, and was already on the borders of Palestine, when, imprudently bathing, he was cut off in the seventieth year of his age. His army suffered greatly from the difficulties of their march and the attacks of the Saracens. The wrecks of it under Frederick's son, the Duke of Swabia, proved a most valuable reinforcement to the Christians in Syria, who had by this time rallied and combined against the domination of Saladin, laying siege to the city of Acre on the sea-coast, a town of so much importance that the possession of it was considered almost equivalent to being master of the whole country. 41. Upon this siege, commenced in August, 1189, was concentrated all the force at the command of the Christians in Palestine, the remnants of the two great military orders the Knights Templars and the Knights Hospitallers, the survivors of Frederick's army, together with such bodies of crusaders as were continually arriving from Europe by sea. Guy de Lusignan was the commander of the besieging forces, and so skillfully was his army fortified that Saladin was unable to dislodge him. For two-and-twenty months the siege continued, and many engagements had taken place between the Christian army and that of Saladin, which occupied the mountains to the south, but without visible advantage on either side. 42. Such was the position of affairs when, early in the summer of 1191, Philip, of France, and Richard Coeur de Lion, of England, arrived with their fleets. The struggle was soon over, and on the 12th of July, 1191, Acre surrendered to the Christians. Had the crusaders been united among themselves, the fall of this city might have been but preliminary to the recovery of the whole country. The rivalry of the kings of France and England, however, prevented their cordial co-operation, and, not long after the capture of Acre, Philip ruined the cause of the crusade by returning to Europe. 43. After gaining many important successes against Saladin, and earning for himself the reputation of the most valiant knight of the age, Richard, involved in disputes with the other chiefs of the crusade, and anxious to revisit England, where his presence was becoming daily more necessary, was glad to conclude an honorable peace. Saladin, on his part, was equally willing to end a struggle which had cost him so much. A truce was concluded for three years and eight months, during which Christian pilgrims were to enjoy the liberty of visiting Jerusalem without hindrance. 44. Saladin entertained many Christians in his own palace, from which they returned, their tongues laden with praises of the noble infidel. Richard and Saladin never met, but each admired the prowess and nobleness of soul of his rival.