Christopher J. Tyerman, ‘Sed nihil fecit? The Last Capetians and the Recovery of the Holy Land’, in J. Gillingham and J. C. Holt, eds, War and Government in the Middle Ages: Essays in Honour of J. O. Prestwich (Totowa, NJ, 1984); Norman Housley, The Later Crusades, 1274–1580: From Lyons to Alcazar (Oxford, 1992), pp. 12–30; Mastnak, Crusading Peace, pp. 139–40