Payne, Robert. The Dream and the Tomb: A History of the Crusades. New York: Stein and Day, 1984. ISBN 0-8128-2945-X
Baldwin, John W. The Government of Philip Augustus: Foundations of French Royal Power in the Middle Ages. Berkeley: University of California Press, 1986.
Meade, Marion. Eleanor of Aquitaine: A Biography. New York: Hawthorn Books, 1977. ISBN 0-8015-2231-5
