The siege of Acre took place in 1291 and resulted in the Crusaders' losing control of Acre to the Mamluk Sultanate of Egypt. It is considered one of the most important battles of the period. Although the crusading movement continued for several more centuries, the capture of the city marked the end of further crusades to the Levant. When Acre fell, the Crusaders lost their last major stronghold of the Crusader Kingdom of Jerusalem.