Answer:
Religious reasons
Explanation:
Know that this is from my memory but I learned about these recently. The crusades were to promote christianity. they did some good things like open up trade routes and introduce countries to each other but they also pillaged and killed those who would not convert.
Hope this helps:)
Cause of the Crusades - 3000 Christian Pilgrims massacred in Jerusalem Religious Conviction The Instinct to Fight The Preaching of Peter the Hermit The Threat of the Turks The Council of Clermont led by Pope Urban II Cause of the Crusades Cause of the Crusades - 3000 Christian Pilgrims massacred in Jerusalem
