He called in the Christians to stop fighting one another and go to the Holy Land to fight the Muslims. This began the First Crusade, which captured Jerusalem in 1099 and established four crusader principalities. Expeditions to protect these gains followed, but with diminishing success. Muslim forces retook Jerusalem in 1187. By 1204, during the Fourth Crusade, the commanders agreed to dismiss Constantinople first to provide fpr the cost pf transporting the army by
He called in the Christians to stop fighting one another and go to the Holy Land to fight the Muslims. This began the First Crusade, which captured Jerusalem in 1099 and established four crusader principalities. Expeditions to protect these gains followed, but with diminishing success. Muslim forces retook Jerusalem in 1187. By 1204, during the Fourth Crusade, the commanders agreed to dismiss Constantinople first to provide fpr the cost pf transporting the army by