Columbia subject headings:
Harvard subject headings:
Ambrose, Saint, Bishop of Milan, -397
Church and state--Italy--Milan.
Festivals--Italy--Milan--History.
Milan (Italy)--Commerce--History.
Milan (Italy)--Economic conditions--History.
Milan (Italy)--History--To 1535.
Princeton subject headings:
Guilds--Italy--Milan--History.
Milan (Italy)--Religious life and customs.