↑ Kenneth M. Setton (1978). The Papacy and the Levant, 1204-1571: Volume II, The Fifteenth Century. American Philosophical Society. ISBN0871691272. Page 188.
↑ Kenneth M. Setton (1978). The Papacy and the Levant, 1204-1571: Volume II, The Fifteenth Century. American Philosophical Society. ISBN0871691272. Page 239.