Columbia subject headings:
France--Politics and government--987-1328.
France--Politics and government--To 987.
France--Social conditions.
Germany--Politics and government--To 1517.
Germany--Social conditions.
Harvard subject headings:
Constitutional history, Medieval.
France--Politics and government--987-1328.
France--Politics and government--To 987.
France--Social conditions--987-1515.
France--Social conditions--To 987.
France--Social conditions.
Germany--Politics and government--To 1517.
Germany--Social conditions.
Princeton subject headings:
France--Politics and government--987-1328.
France--Politics and government--To 987.
France--Social conditions.
Germany--Politics and government--To 1517.
Germany--Social conditions.