Columbia subject headings:
Palazzo Margherita (Rome, Italy)
Villa Ludovisi (Rome, Italy)
Harvard subject headings:
Boncompagni-Ludovisi family.
Boncompagni-Ludovisi, Rodolfo, Prince of Piombino--Homes and haunts.
Margherita, Queen, consort of Umberto I, King of Italy, 1851-1926--Palaces--Italy--Rome.
Palazzo Margherita (Rome, Italy)
Rome (Italy)--Buildings, structures, etc.
Villa Ludovisi (Rome, Italy)
Princeton subject headings: