Columbia subject headings:
Gonzaga Colonna, Vespasiano, duca di Sabbioneta, 1531-1591--Congresses.
Mantua (Italy)--History--Congresses.
Sabbioneta (Italy)--History--Congresses.
Harvard subject headings:
Gonzaga Colonna, Vespasiano, duca di Sabbioneta, 1531-1591--Congresses.
Kings and rulers--Congresses.
Mantua (Italy)--History--Congresses.
Sabbioneta (Italy)--History--Congresses.
Princeton subject headings:
Gonzaga Colonna, Vespasiano, duca di Sabbioneta, 1531-1591--Congresses.
Gonzaga family--Congresses.
Italy--Civilization--1268-1559--Congresses.
Italy--Civilization--1559-1789--Congresses.