<Ul> <Li> 2nd Antioch </Li> <Li> 2nd Arsuf </Li> <Li> Caesarea </Li> <Li> Haifa </Li> <Li> 2nd Acre </Li> <Li> Krak des Chevaliers </Li> <Li> 2nd Tripoli </Li> <Li> 3rd Tripoli </Li> <Li> Ruad </Li> </Ul> <Li> Krak des Chevaliers </Li> <P> The Siege of Jerusalem was a siege on the city of Jerusalem that lasted from September 20 to October 2, 1187, when Balian of Ibelin surrendered the city to Saladin . Citizens wishing to leave paid a ransom . The defeat of Jerusalem signalled the end of the Kingdom of Jerusalem . Europe responded in 1189 by launching the Third Crusade led by Richard the Lionheart, Philip Augustus, and Frederick Barbarossa separately . </P> <P> The Kingdom of Jerusalem, weakened by internal disputes, was defeated at the Battle of Hattin on 4 July 1187 . Most of the nobility were taken prisoner, including King Guy . Thousands of Muslim slaves were freed . By mid-September, Saladin had taken Acre, Nablus, Jaffa, Toron, Sidon, Beirut, and Ascalon . The survivors of the battle and other refugees fled to Tyre, the only city able to hold out against Saladin, due to the fortuitous arrival of Conrad of Montferrat . </P>

When did the final loss of jerusalem for european forces