This codex was gathered by the sculptor Pompeo Leoni, son of Leone Leoni, in the late 16th century. It is currently preserved at the Biblioteca Ambrosiana, Milan. The codex was restored, rebound and broken down into 12 volumes by Basilian monks working in the Laboratory for the Restoration of Ancient Books and Manuscripts of the Exarchic Greek Abbey of St. Mary of Grottaferrata over the course of 1968 to 1972. __