Columbia subject headings:
Holy Roman Empire--Foreign relations.
Holy Roman Empire--Politics and government--15th century.
Harvard subject headings:
Germany--Foreign relations--To 1517
Germany--Politics and government--To 1517
Holy Roman Empire--Foreign relations.
Holy Roman Empire--History--To 1517
Holy Roman Empire--Politics and government
Princeton subject headings:
Germany--Foreign relations--15th century.
Germany--Politics and government--15th century.
Holy Roman Empire--History--15th century.