Columbia subject headings:
Architecture--Italy--Pesaro.
Palazzo ducale (Pesaro, Italy)
Harvard subject headings:
Architecture, Renaissance--Italy--Pesaro--Conservation and restoration.
Palazzo ducale (Pesaro, Italy)
Pesaro (Italy)--Buildings, structures, etc.
Princeton subject headings:
Palazzo ducale (Pesaro, Italy)
Pesaro (Italy)--History--Sources.