Columbia subject headings:
Gagarin, Grigoriĭ Grigorʹevich, kni︠a︡zʹ, 1810-1893.
Harvard subject headings:
Princeton subject headings:
Artists--Russia--Biography.
Gagarin, Grigoriĭ Grigorʹevich, kni︠a︡zʹ, 1810-1893.
Russia--Princes and princesses--Biography.