<p>The Siege of Acre was one of the first confrontations of the Third Crusade, lasting from August 28, 1189 until July 12, 1191, and the first time in history that the King of Jerusalem was compelled to personally see to the defence of the Holy Land. It was also the deadliest event of the whole period of the Crusades for the Christian ruling class of the east.
After Saladin had decisively defeated the Crusaders at the Battle of Hattin on July 4, 1187, he was able to conquer a great part of the Kingdom of Jerusalem with little opposition, among them the cities of Acre and (on October 2) Jerusalem itself. The Crusaders afterwards controlled only Tyre, Tripoli, and Antioch, which Saladin likewise attacked in 1188, although unsuccessfully. News of the loss of Jerusalem and Palestine was shocking to Europe, and there was soon demand for a new Crusade, called by Pope Gregory VIII in October 1187 and continued by his successor Pope Clement III.
In Tyre, Conrad of Montferrat had entrenched himself and had successfully resisted Saladin’s assault at the end of 1187. The sultan then turned his attention to other tasks, but then tried to negotiate the surrender of the city by treaty, as in</p>