Constantine VII (19 November 843-3 April 879) was the Emperor of the Byzantine Empire and the Frankish Empire from 21 of December to his death in 879. Succeeding his brother, Atticus II, Constantine VII led the Frankish Empire through a difficult era of economic and sociological chaos following the First Viking Wars. Along with his duties as leader of the Eastern Roman Empire and the Frankish Empire, Constantine VII was a Holy Roman Emperor.