Columbia subject headings:
Europe--History--1517-1648.
Holy Roman Empire--History--1517-1648.
Spain--History--House of Austria, 1516-1700.
Harvard subject headings:
Europe--History--1517-1648.
Holy Roman Empire--History--1517-1648.
Spain--History--House of Austria, 1516-1700.
Princeton subject headings:
Europe--History--1517-1648.
Holy Roman Empire--History--1517-1648.
Spain--History--House of Austria, 1516-1700.