Robert FitzFulk, known as the Leper, held, among other properties, the fortress of Zardana on the frontier with Aleppo. Unsurprisingly, he established alliances with those Muslim rulers hostile to Aleppo, including Il-Ghazi of Mardin and Tughtegin, atabeg of Damascus, joining them in a military compact in 1115. Tughtegin was even remebered as being Robert’s friend, although this did not prevent him personally decapitating Robert in 1119.
- Christopher Tyerman, God’s War: A New History of the Crusades, p. 192.