Columbia subject headings:
Architects and patrons--Europe--History.
Architecture and society--Europe--History.
Decoration and ornament--Europe--History.
Galleries (Architecture)--Europe--History.
Interior architecture--Social aspects--Europe--History.
Interior decoration--Europe--History.
Harvard subject headings:
Buildings--Europe.
Halls--Europe.
Mansions--Europe.
Palaces--Europe
Princeton subject headings:
Buildings--Europe.
Mansions--Europe.
Palaces--Europe.