Columbia subject headings:
Filippo Maria Visconti, Duke of Milan, 1392-1447.
Italy--Politics and government--1268-1559.
Milan (Italy)--History--To 1535.
Milan (Italy)--Kings and rulers--Biography.
Harvard subject headings:
Feudalism--Italy, Northern.
Filippo Maria Visconti, Duke of Milan, 1392-1447.
Italy, Northern--History.
Princeton subject headings:
Feudalism--Italy, Northern.
Filippo Maria Visconti, Duke of Milan, 1392-1447.
Italy, Northern--History.