Tham khảo Baldwin IV thành Jerusalem

William of Tyre, A History of Deeds Done Beyond the Sea. E. A. Babcock and A. C. Krey, trans. Columbia University Press, 1943.
Steven Runciman, A History of the Crusades, vol. II: The Kingdom of Jerusalem. Cambridge University Press, 1952.
Hamilton, Bernard (1978). “Women in the Crusader States: The Queens of Jerusalem”. Trong Baker, Derek (biên tập). Medieval Women. Ecclesiastical History Society. ISBN 0631192603.
Hamilton, Bernard (2000). The Leper King and his Heirs: Baldwin IV and the Crusader Kingdom of Jerusalem. Cambridge University Press. ISBN 052164187X.
Dana Carleton Munro, The Popes and the Crusades. American Philosophical Society, Proceedings of the American Philosophical Society Vol. 55, No. 5 pp. 348–356 (1916).

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