Columbia subject headings:
Pushkin, Aleksandr Sergeevich, 1799-1837.
Volkonskai︠a︡, Marii︠a︡ Nikolaevna, kni︠a︡gini︠a︡, 1805-1863.
Harvard subject headings:
Decembrists.
Pushkin, Aleksandr Sergeevich, 1799-1837
Volkonskai︠a︡, Marii︠a︡ Nikolaevna, kni︠a︡gini︠a︡, 1805-1863
Princeton subject headings: