Crusaders' Kingdom of Jerusalem continued to exist until the late 13th century, the defeat in 1187 marked a turning point in the Christian military effort against Muslim powers in the region. Saladin died in Damascus in 1193, having given away much of his personal wealth to his subjects; he is buried in a mausoleum adjacent to the Umayyad Mosque. Alongside his significance to Muslim culture, Saladin is revered prominently in Kurdish culture, Turkic culture, and Arab culture. He has frequently been described as the most famous Kurdish figure in history. Early life Saladin was born in Tikrit in present-day Iraq. His personal name was "Yusuf"; "Salah ad-Din" is a laqab, an honorific epithet, meaning "Righteousness of the Faith". His family was most likely of Kurdish ancestry, and had originated from the village of Ajdanakan near the city of Dvin in central Armenia. The Rawadiya tribe he hailed from had been partially assimilated into the Arabic-speaking world by this time. In Saladin's era, no scholar had more influence than sheikh Abdul Qadir Gilani, and Saladin was strongly influenced and aided by him and his pupils. In 1132, the defeated army of Zengi, Atabeg of Mosul, found their retreat blocked by the Tigris River opposite the fortress of Tikrit, where Saladin's father, Najm ad-Din Ayyub served as the warden. Ayyub provided ferries for the army and gave them refuge in Tikrit. Mujahid al-Din Bihruz, a former Greek slave who had been appointed as the military governor of northern Mesopotamia for his service to the Seljuks, reprimanded Ayyub for giving Zengi refuge and in 1137 banished Ayyub from Tikrit after his brother Asad al-Din Shirkuh killed a friend of Bihruz. According to Baha ad-Din ibn Shaddad, Saladin was born on the same night that his family left Tikrit. In 1139, Ayyub and his family moved to Mosul, where Imad ad-Din Zengi acknowledged his debt and appointed Ayyub commander of his fortress in Baalbek. After the death of Zengi in 1146, his son, Nur ad-Din, became the regent of Aleppo and the leader of the Zengids. Saladin, who now lived in Damascus, was reported to have a particular fondness for the city, but information on his early childhood is scarce. About education, Saladin wrote "children are brought up in the way in which their elders were brought up". According to his biographers, Anne-Marie Eddé and al-Wahrani, Saladin was able to answer questions on Euclid,