sentences:  In those days, there were royal palaces in Koblenz, Boppard and Oberwesel.The Franks divided their whole empire up into dukedoms, which themselves were further divided into "Gaue" (singular, "Gau"; roughly, a region), and these further still into "Hundertschaften".In the early 9th century, and thus in Charlemagne’s and his successors’ time, the Norath area belonged to the Dukedom of Moselania.