Nils Visser, The Sicilian crucible and Lucaera Saracenorum, Medieval Warfare, Vol. 1, Issue 4, pp. 16-20 7 Aprile 2012 / 0 Comments Nils Visser, The Sicilian crucible and Lucaera Saracenorum, Medieval Warfare, Vol. 1, Issue 4, pp. 16-20