Egypt and Syria in the Fatimid, Ayyubid and Mamluk Eras IX : Proceedings of the 23rd and 24th international colloquium organized at the University of Leuven in May 2015 and 2016 - Hulster, K. d' (Kristof d'); Schallenbergh, Gino; Steenbergen, J. van (Peeters, 2019)