Amadís de Gaula (Amadis of Gaul) is a famous prose romance of chivalry, first composed in Spain or Portugal and most likely based on French sources. An early version of the work probably existed by the late 13th century or early 14th century. A version in three books, of which brief fragments are extant, can be dated around 1420. Garci Rodriguez de Montalvo, ruler of Medina del Campo, reworked that version, added a fourth book, and continued with a fifth, entitled Las sergas de Esplandián (The adventures of Esplandian). The work remained popular during the Spanish Golden Age in both Europe and America, with 19 Spanish editions published in the 16th century. The edition shown here was printed by Juan Cromberger, who was instrumental in introducing the printing press to the Americas in the 1530s. The Cromberger family of Seville specialized in printing books of chivalry, which were characterized in general by being produced in folio size, with gothic typefaces, in two columns, with a print of the hero on horseback on the cover and minor woodcuts in each chapter. The Cromberger editions set the tone for future printings and were imitated until the mid-16th century.