Columbia subject headings:
Gonzaga, Ferrante, 1507-1557--Congresses.
Guastalla (Italy)--History--Congresses.
Italy--History--1492-1559--Congresses.
Harvard subject headings:
Condottieri--Biography--Congresses.
Gonzaga, Ferrante, 1507-1557--Congresses.
Guastalla (Italy)--History--16th century--Congresses.
Guastalla (Italy)--History--Congresses.
Italy--History--1492-1559--Congresses.
Princeton subject headings:
Gonzaga, Ferrante, 1507-1557--Congresses.
Guastalla (Italy)--History--Congresses.
Italy--History--1492-1559--Congresses.