Juan Gil de Zamora

Two historiated initials S and Q from a late 13th-century manuscript showing Juan Gil writing his Liber de preconiis Hyspanie (top) and presenting it to Sancho IV (bottom).[1]

Juan Gil de Zamora (c. 1240c. 1320), known in Latin as Aegidius Zamorensis,[2] was a Castilian Franciscan friar and prolific writer of the literary circle around Alfonso X. He wrote hagiography, history, music theory, natural science, poetry and sermons.