event
First Crusade
Urban II preached at Clermont for an armed pilgrimage to free Jerusalem from Seljuk Turks. The Crusade ended with the bloody Christian sack of Jerusalem in 1099 and reshaped Christian-Muslim relations for centuries.
Cite this entry
“First Crusade.” Atlas. Accessed 2026. https://fcbh-atlas.vercel.app/en/event/first-crusade