Columbia subject headings:
Carolingians.
Germany--History, Military.
Germany--History--843-1273.
Germany--History--To 843.
Harvard subject headings:
Carolingians.
Germany--History, Military.
Germany--History--843-1273.
Germany--History--To 843.
Princeton subject headings:
Carolingians.
Germany--History, Military.
Germany--History--843-1273.
Germany--History--To 843.