Columbia subject headings:
Art patronage--Italy--Tuscany--History--19th century.
Demidov family--Art collections.
Harvard subject headings:
Demidov family.
Florence (Italy)--Description and travel.
Nobility--Russia--History
Pratolino (Italy)--History.
Tuscany (Italy)--History.
Princeton subject headings:
Art patronage--Italy--Florence.
Art patronage--Italy--Tuscany.
Art patronage--Russia.
Demidov family--Art collections.
Demidov, Anatolīĭ, principe di San Donato, 1812-1870--Art collections.
Demidov, N. V. (Nikolaĭ Vasilʹevich)