Columbia subject headings:
Germany--Foreign relations--Italy.
Germany--History--To 843.
Italy--Foreign relations--476-1268.
Italy--Foreign relations--Germany.
Merovingians.
Harvard subject headings:
Germany--Foreign relations--Italy.
Germany--History--To 843.
Italy--Foreign relations--476-1268.
Italy--Foreign relations--Germany.
Merovingians--History.
Princeton subject headings:
Franks--History.
Merovingians.