<p>Downfall of the Crusader Kingdom tells the story of the reason for Richard the Lionheart's infamous Third Crusade, culminating in the disastrous battle of Hattin in 1187. Hattin is one of the few battles in history that can truly be called decisive, and it was a catastrophe for the Crusaders. The leading men of the kingdom of Jerusalem, including the Knights Templar and the Hospitallers, were trapped in arid wasteland, without water and surrou...