Columbia subject headings:
Europe--History--476-1492--Congresses.
Italy--Civilization--476-1268--Congresses.
Rome--History--Germanic Invasions, 3rd-6th centuries--Congresses.
Harvard subject headings:
Europe--History--476-1492--Congresses.
Italy--Civilization--476-1268--Congresses.
Rome--Civilization--Foreign influences--Congresses.
Rome--History--Germanic Invasions, 3rd-6th centuries--Congresses.
Princeton subject headings:
Europe--History--476-1492--Congresses.
Italy--Civilization--476-1268--Congresses.
Rome--History--Germanic Invasions, 3rd-6th centuries--Congresses.