Columbia subject headings:
Harvard subject headings:
Europe--History--17th century.
Peace of Westphalia
Thirty Years' War, 1618-1648--Peace.
Westphalia (Germany)--History--17th century.
Princeton subject headings:
Europe--History--17th century.
Peace of Westphalia
Thirty Years' War, 1618-1648--Peace.
Westphalia (Germany)--History--17th century.