Columbia subject headings:
Harvard subject headings:
Germany--History--Charles V, 1519-1556.
Germany--Politics and government--1517-1648.
Holy Roman Empire--History--Charles V, 1519-1556.
Holy Roman Empire. Reichstag--History--16th century.
Princeton subject headings:
Germany--History--Charles V, 1519-1556.
Germany--Politics and government--1517-1648.
Holy Roman Empire--History--Charles V, 1519-1556.
Holy Roman Empire. Reichstag--History--16th century.