Answer:
The man leading the people is Peter the Hermit.
Step-by-step explanation:
Peter the Hermit was a French preacher at the time of the First Crusade. He had started a pilgrimage to Jerusalem before 1095, before Pope Urban II called for the liberation of Jerusalem on November 27, 1095, but had been intercepted and defeated by the Seljuks in Asia Minor, never reaching the Holy Land. However, Peter the hermit escaped with life and then joined in Constantinople to the actual First Crusade. After the Crusaders' conquest of Jerusalem, he returned home and founded an Augustinian monastery in Huy, where he died as a prior in 1115.