This book would never have seen the light of day without the enthusiasm of Jonny Pegg seconded by Shaheeda Sabir at Curtis Brown and Leo Hollis at Constable & Robinson, who worked far beyond the call of duty; nor indeed without the encouragement over many years of the late and much-missed Andrew Best. Invaluable help with German problems was given by Max and Sophie Rehmet; in Konstanz the staff of Homburger and Hepp and the Bucherstube am Zee, together with the Bucher Zentrum Unna, produced the essential texts. J–P Bonnet and the staff of the University of Poitiers, and the Centres des Études Médiévales and the Médiathèque provided a valuable resource. Paul Collins in Canberra gave wise advice and Tony Bernard industriously researched Hussite militaria. But as with all our other books the patient, long-suffering and multi-talented Agnes, here with technical advice from Susie Kelly, deserves most of the credit.