* Tyerman, C.(2006):"God's war: a new history of the Crusades"* Kenneth M. Setton, Robert Lee Wolff, Harry W. Hazard (1962):"A History of the Crusades, Volume II: The Later Crusades, 1189–1311"
==Notes====References==* Tyerman, C.(2006):"God's war: a new history of the Crusades"* Kenneth M. Setton, Robert Lee Wolff, Harry W. Hazard (1962):"A History of the Crusades, Volume II: The Later Crusades, 1189–1311"