THE HISTORY OF the Latin Kingdom from 1187 to 1274 is marked by a succession of calamities, which had a strong impact on the situation of the Order in the East. The battle of Hattin, on 4 July 1187, led to the contraction of the Latin settlement. After 1188 all that remained of the kingdom of Jerusalem was the city of Tyre, although the Third Crusade was to re-conquer the coast from Tyre to Jaffa, including the important city of Acre. The city of Tripoli, the Hospitaller fortress of Crac des Chevaliers, and the Templar castle of Tortosa were almost all that remained of the county of Tripoli. All the important port towns south of Tripoli, including Gibelet, Beirut, and Sidon, were lost. In the principality of Antioch, only the Hospitaller castle of Margat and the city of Antioch remained, with the land around it and along the coast. The collapse of the Latin settlement gravely damaged the economic basis of the Hospitallers in the Holy Land and their military disposition. In the years following Hattin the Order lost most of its castles, fortresses, and lands. Although there is no indication of the number of brothers killed during and after this battle, prosopographic research indicates that the Order may have suffered heavy losses. It will be shown elsewhere that after the battle the Order's leadership disappeared and was replaced by new men, some from the East, who were promoted to higher ranks, and some transferred from Europe.