Columbia subject headings:
Harvard subject headings:
Church history--Middle Ages, 600-1500--Early works to 1800.
Crusades--Early works to 1800
France--History--Capetians, 987-1328--Early works to 1800.
France--Politics and government--987-1328--Early works to 1800.
Political science--Early works to 1800
Princeton subject headings:
Church history--Middle Ages, 600-1500--Early works to 1800.
Crusades--Early works to 1800.
France--History--Capetians, 987-1328--Early works to 1800.
France--Politics and government--987-1328--Early works to 1800.
Political science--Early works to 1800.