Columbia subject headings:
Architects--Italy.
Architecture, Baroque.
Architecture--Italy--Naples.
Harvard subject headings:
Architects--Italy.
Architecture, Baroque--Italy--Naples.
Architecture--Italy--Naples
Buildings--Italy--Naples.
Naples (Italy)--Buildings, structures, etc.
Princeton subject headings:
Architects--Italy.
Architecture, Baroque--Italy--Naples.
Architecture--Italy--Naples.
Buildings--Italy--Naples.