Columbia subject headings:
Castello sforzesco (Vigevano, Italy)
Vigevano (Italy)--History.
Harvard subject headings:
Architecture--Italy--Vigevano.
Castello Sforzesco (Vigevano, Italy)
Vigevano (Italy)--Buildings, stuctures, etc.
Princeton subject headings:
Castello di Vigevano (Vigevano, Italy)
Vigevano (Italy)--History.