Columbia subject headings:
Harvard subject headings:
Baltic Sea Region--History, Military--16th century.
Europe--History, Military--1492-1648.
Livonian War, 1557-1582.
Russia--History--Ivan IV, 1533-1584.
Teutonic Knights--Livonia--History.
Princeton subject headings:
Baltic Sea Region--History, Military--16th century.
Europe--History, Military--1492-1648.
Livonian War, 1557-1582.
Russia--History--Ivan IV, 1533-1584.
Teutonic Knights--Livonia--History.