Columbia subject headings:
Alexander, Grand Duke of Vladimir, 1220-1263--Congresses.
Kievan Rus--History--Congresses.
Lake Peipus, Battle of, 1242--Congresses.
Russia--History--1237-1480--Congresses.
Harvard subject headings:
Alexander, Grand Duke of Vladimir, 1220-1263--Congresses.
Kievan Rus--History--Congresses.
Lake Peipus, Battle of, 1242--Congresses.
Russia--History--1237-1480--Congresses.
Princeton subject headings:
Alexander, Grand Duke of Vladimir, 1220-1263--Congresses.
Kievan Rus--History--Congresses.
Lake Peipus, Battle of, 1242--Congresses.
Russia--History--1237-1480--Congresses.