Columbia subject headings:
Harvard subject headings:
Swiss mercenaries--History.
Switzerland--Foreign relations--History.
Switzerland--History, Military--16th century.
Switzerland--History--1499-1648.
Switzerland--Politics and government--16th century.
Princeton subject headings:
Swiss mercenaries.
Switzerland--Foreign relations--History.
Switzerland--History, Military--16th century.
Switzerland--Politics and government--16th century.