Modern study of the Hospitallers, of other military-religious orders, and of their activities both in the Mediterranean and in Europe has been deeply influenced by the work of Anthony Luttrell. To mark his 75th birthday in October 2007, twenty-three colleagues from ten different countries have contributed to this volume. The first section focuses on the crusading period in the Holy Land, considering the Hospital in Jerusalem, relations with the Assassins, finances, indulgences, transportation and the careers of the brothers and knights. The second and third sections move to the later Middle Ages, when the Hospitallers had their centre on Rhodes, and military and charitable activities in the East had to be supported with men and money from the West. The papers in the second section consider the Hospitallers on Rhodes, relations between Rhodes and the West and plans for crusades, while the third section includes papers on the Hospitallers in the Iberian Peninsula and in Hungary, the...