Norman Housley (Ph.D. at Cambridge University) is professor at School of History at the University of Leicester. His research focuses on different aspects of the crusades. His interest encompasses largely the period 1200–1580, most recently the scope of his work has focused on the fifteenth and early sixteenth centuries. Recently, he published books Crusading and the Ottoman Threat, 1453–1505 (Oxford: Oxford University Press, 2012); Figthing for the Cross: Crusading to the Holy Land (New Haven: Yale University Press, 2008); Contesting the Crusades (Malden, Mass.: Blackwell, 2006); Religious Warfare in Europe, 1400–1536 (Oxford: Oxford University Press, 2002) and many others. Recently, he edited volumes: Knighthoods of Christ: Essays on the History of the Crusades and the Knights Templar (Aldershot: Ashgate 2007), Crusading in the Fifteenth Century: Message and Impact (Basignstoke: Palgrave Macmillan, 2004) etc.