This comprehensive survey of the military orders is based on a wide range of primary sources. Besides giving a clear account of the emergence of the orders, it investigates their military significance and the ways in which they obtained necessary funds and manpower. Their governmental structure and daily life are examined, together with the increasing criticisms they faced in the thirteenth century. The book ends with a discussion of the fall of the Templars and the changing roles of other orders in the early fourteenth century.