Columbia subject headings:
Harvard subject headings:
Italy--Economic conditions--Congresses.
Italy--Social conditions--1268-1559--Congresses.
Poverty--Religious aspects--Catholic Church--History of doctrines--Middle Ages, 600-1500--Congresses.
Poverty--Religious aspects--Christianity--History of doctrines--Middle Ages, 600-1500--Congresses.
Princeton subject headings:
Italy--Economic conditions--Congresses.
Italy--Social conditions--1268-1559--Congresses.
Poverty--Religious aspects--Christianity--History of doctrines--Middle Ages, 600-1500--Congresses.