Columbia subject headings:
Lombardy (Italy)--History--To 1535--Congresses.
Milan (Italy)--Foreign relations--Congresses.
Milan (Italy)--History--To 1535--Congresses.
Sforza family--Congresses.
Harvard subject headings:
Lombardy (Italy)--History--To 1535--Congresses.
Milan (Italy)--Foreign relations--Congresses.
Milan (Italy)--History--To 1535--Congresses.
Sforza family--Congresses.
Princeton subject headings:
Lombardy (Italy)--History--To 1535--Congresses.
Milan (Italy)--Foreign relations--Congresses.
Milan (Italy)--History--To 1535--Congresses.
Sforza family--Congresses.