Manuscript was produced in the scriptorium of San Salvador de Tábara, and is noted for the large number of illustrations, and the complex iconographi program. It begins with a Cross and a Maiestas, followed by a vision of heaven, continuing with 6 miniatures of the Evangelists. It also features genealogies which extend throughout a unique cycle of the life and death of Christ. Although the codex contains Muslim elements, it also features many elements of the Carolingian style.