Military history of the Crusader states
The Seljuk–Crusader War began when the First Crusade wrested territory from the Seljuk Turks during the Siege of Nicaea in 1097 and lasted until 1128 when Zengi became atabeg of Aleppo. At the latter date, the chief threat to the Crusaders from the east and north became the Zengids. The conflict was generally fought between European Crusaders and the Seljuk Turks and their vassals. The Muslim Syrian emirates occasionally allied themselves with the Christians against rival states.
The Order (2001 film)
The film opens in 1099 at the end of the First Crusade, depicting Christian Crusaders sacking Jerusalem and slaughtering the local population. A Flemish Christian knight named Charles Le Vaillant (Jean-Claude Van Damme) becomes demoralized by the horrors of war and decides to create a new religious order. This new order brings together members from the three main religions of the region: Christians, Jews, and Muslims. As a self-declared leader and messiah, Charles writes the sacred texts of the Order. While traveling to Syria his camp is attacked by the Christian knights, who kill Le Vaillant. The last chapter from their religious text, buried by Le Vaillant in a secret place, becomes lost in the desert after the attack.