Château Pèlerin, also known as Atlit Castle and Castle Pilgrim, is located on the northern coast of Israel about 13 kilometres (8.1 mi) south of Haifa. The Knights Templar began building it in 1218 during the Fifth Crusade. One of the major Crusader fortresses, it could support up to 4,000 troops in siege conditions. It was lost to the Mamluks in August 1291, shortly after the Fall of Acre. It remained intact for several hundred years, until being damaged in the Galilee earthquake of 1837. In modern times, the castle is part of a training zone for Israeli Naval commandos.