Columbia subject headings:
Charlemagne, Emperor, 742-814.
Germany--History--Saxon House, 919-1024.
Saxony (Germany)--History.
Harvard subject headings:
Charlemagne, Emperor, 742-814.
Germany--History--Saxon House, 919-1024.
Saxony (Germany)--History.
Princeton subject headings:
Charlemagne, Emperor, 742-814.
Germany--History--Saxon House, 919-1024.
Nobility--Germany--Saxony.