Fourth Crusade Pope Innocent III started the Fourth Crusade. The written intent was to reclaim the city of Jerusalem. A two-year war was established, and the Muslims managed to claim most of the crusader states in Levant. (jan 1, 1202 – jan 1, 1204)
Added to timeline:
Date:
jan 1, 1202
jan 1, 1204
~ 2 years