Two astromagical manuscripts of Alfonso X.
'Illustrated manuscripts produced for Alfonso X, King of Castile: 1) Libro de las formas et de las imágines, 1277-79 (El Escorial, Real Biblioteca, MS h-I-16); and 2) a compendium of astral magic referred to by García Avilés as the Libro de astromagia, ca. 1280 (Vatican Library, bound with a collection of Latin Texts' (BHA).