Columbia subject headings:
Harvard subject headings:
Arts, Italian--Congresses.
Charity in art--Congresses.
Italy--History--13th century--Congresses.
Italy--History--14th century--Congresses.
Italy--History--15th century--Congresses.
Italy--History--16th century--Congresses.
Poor in art--Congresses.
Poor--Italy--History--Congresses.
Poor--Italy--Social conditions--Congresses.
Poor--Italy--Social conditions--History--Congresses.
Poverty in art--History--Congresses.
Poverty in literature--History--Congresses.
Poverty--Italy--History--Congresses.
Public welfare--Italy--History--Congresses.
Princeton subject headings:
Arts, Italian--Congresses.
Charity in art--Congresses.
Poor in art--Congresses.
Poor--Social conditions--Italy--History--Congresses.