Most studies of medieval warfare in the late 14th and 15th centuries concentrate on the Hundred Years’ War between England and France and the Wars of the Roses. But meanwhile, on the Iberian peninsula, the foundations of Spain’s military ‘Golden Age’ were being laid as the kingdoms of Castile and Aragon under the Trastamara dynasty grew in power, ambition and success. Featuring spectacular full-colour artwork, and rare manuscript illustrations, this book depicts the fighting men whose skill and tactical flexibility made Spain into a world power at the close of the Middle Ages, carving out empires from the Mediterranean to the Caribbean.