Columbia subject headings:
Akinfova, Nadezhda Sergeevna, 1839-1891.
Leĭkhtenbergskīĭ, Nikolaĭ Maksimilīanovich, gert︠s︡og, 1843-1890.
Nobility--Russia--Biography.
Harvard subject headings:
Akinfova, Nadezhda Sergeevna, 1839-1891.
Leĭkhtenbergskīĭ, Nikolaĭ Maksimilīanovich, gert͡sog, 1843-1890.
Nobility--Russia--Biography
Romanov, House of.
Princeton subject headings:
Akinfova, Nadezhda Sergeevna, 1839-1891.
Leĭkhtenbergskīĭ, Nikolaĭ Maksimilīanovich, gert︠s︡og, 1843-1890.
Nobility--Russia--Biography.