The Estoria de España ("History of Spain"), also known in the 1906 edition of Ramón Menéndez Pidal as the Primera Crónica General ("First General Chronicle"), is a history book written on the initiative of Alfonso X of Castile "El Sabio" ("the Wise"), who was actively involved in the editing. It is believed to be the first extended history of Spain in Old Spanish, a West Iberian Romance language that forms part of the lineage from Vulgar Latin to modern Spanish. Many prior works were consulted in constructing this history.