Columbia subject headings:
Harvard subject headings:
Castelnuovo Berardenga (Italy)--History--Congresses.
Castles in art--Congresses.
Lorenzetti, Ambrogio, 1285-approximately 1348--Congresses.
Maremma (Italy)--History--Congresses.
Nobility--Italy--Siena--History--Congresses.
Princeton subject headings:
Art, Italian--Italy--Meremma--14th century--Congresses.
Art, Medieval--Italy--Maremma--Congresses.
Castelnuovo Berardenga (Italy)
Lorenzetti, Ambrogio, 1285-approximately 1348--Influence--Congresses.