Columbia subject headings:
Carolingians.
France--Church history--To 987.
Germany--Church history--843-1517.
Germany--Church history--To 843.
Harvard subject headings:
Carolingians.
France--Church history--To 987.
Germany--Church history--843-1517.
Germany--Church history--To 843.
Princeton subject headings:
Carolingians.
Church history--Middle Ages, 600-1500.
France--Church history--To 987.
Germany--Church history--843-1517.
Germany--Church history--To 843.