Columbia subject headings:
Alekseĭ Aleksandrovich, Grand Duke of Russia, 1850-1908--Homes and haunts--Russia (Federation)--Saint Petersburg.
Dvoret͡s velikogo kni͡azi͡a Aleksei͡a Aleksandrovicha (Saint Petersburg, Russia)
Palaces--Russia (Federation)--Saint Petersburg.
Saint Petersburg (Russia)--Buildings, structures, etc.
Harvard subject headings:
Princeton subject headings:
Palaces--Russia (Federation)--Saint Petersburg.
Saint Petersburg (Russia)--Buildings, structures, etc.