Columbia subject headings:
Holy Roman Empire--History--Charles V, 1519-1556.
Holy Roman Empire--History--Ferdinand I, 1556-1564.
Seld, Georg Sigmund, 1516-1565.
Harvard subject headings:
Holy Roman Empire--History--Charles V, 1519-1556.
Holy Roman Empire--History--Ferdinand I, 1556-1564.
Seld, Georg Sigmund, 1516-1565.
Princeton subject headings:
Holy Roman Empire--History--Charles V, 1519-1556.
Holy Roman Empire--History--Ferdinand I, 1556-1564.
Seld, Georg Sigmund, 1516-1565.