Columbia subject headings:
Civilization, Medieval--Congresses.
Conduct of life--History--To 1500--Congresses.
Fourteenth century--Congresses.
Middle Ages--Social life and customs--Congresses.
Professions--Europe--History--To 1500--Congresses.
Social classes--Europe--History--To 1500--Congresses.
Thirteenth century--Congresses.
Harvard subject headings:
Civilization, Medieval--Congresses
Conduct of life--History--To 1500--Congresses.
Fourteenth century--Congresses.
Italy--Economic conditions--Congresses.
Italy--History--1268-1492--Congresses.
Italy--History--476-1268--Congresses.
Italy--Social conditions--Congresses.
Middle Ages--Social life and customs--Congresses.
Professions--Europe--History--To 1500--Congresses.
Social classes--Europe--History--To 1500--Congresses.
Social history--Medieval, 500-1500--Congresses
Thirteenth century--Congresses.
Princeton subject headings:
Civilization, Medieval--Congresses.
Conduct of life--History--To 1500--Congresses.
Fourteenth century--Congresses.
Middle Ages--Social life and customs--Congresses.
Professions--Europe--History--To 1500--Congresses.
Social classes--Europe--History--To 1500--Congresses.
Thirteenth century--Congresses.