Columbia subject headings:
Ludovico Sforza, Duke of Milan, 1452-1508--Congresses.
Milan (Italy)--Civilization--Congresses.
Milan (Italy)--History--To 1535--Congresses.
Harvard subject headings:
Ludovico Sforza, Duke of Milan, 1452-1508--Congresses.
Milan (Italy)--Civilization--Congresses.
Milan (Italy)--History--To 1535--Congresses.
Princeton subject headings:
Ludovico Sforza, Duke of Milan, 1452-1508--Congresses.
Milan (Italy)--Civilization--Congresses.
Milan (Italy)--History--To 1535--Congresses.