Columbia subject headings:
Harvard subject headings:
Gosudarstvennyĭ Ėrmitazh (Russia)--Congresses.
Painting, Baroque--Russia (Federation)--Saint Petersburg--17th century--Congresses.
Painting, Italian--Russia (Federation)--Saint Petersburg--17th century--History--Congresses.
Princeton subject headings:
Gosudarstvennyĭ Ėrmitazh (Russia)--Congresses.
Painting, Italian--17th century--Congresses.
Painting--Russia (Federation)--Saint Petersburg--Congresses.