Dating to the 9th Century AD, The ''Drogo'' Sacramentary'' is a Carolingian Religious Prayer and Ritual Book – considered the only complete kind of it's nature. It is known as The ''Drogo'' for who it was commissioned for – Bishop Drogo of Metz (Son of Charlemagne, Holy Roman Emperor). Drogo was also a great Patrol of early Medieval Art. As such, this Sacramentary is richly illuminated. This book was personally used by The Bishop in his daily and weekly Prayers and Ceremonies. The Book contains 130 folios and is currently preserved in France.