Jelaskan Anak dari Maria Aleksandrovna (istri Aleksandr II)

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Gilbert, Paul. Alexander II and Tsarkoe Selo. Published in Royal Russia Annual: a Celebration of the Romanov Dynasty & Imperial Russia in Words & Photographs. No 2. Gilbert's Books, 2012.

Korneva, Galina & Cheboksarova, Tatiana.  Russia & Europe: Dynastic Ties . Eurohistory, 2013.

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Nelipa, Margarita. Alexander III His Life and Reign. Gilbert's Books, 2014.

Radzinsky , Edvard. Alexander II: The Last Great Tsar. Free Press, 2006 .

Van der Kiste, John. The Romanovs 1818–1959. Sutton Publishing, 1999. .

Zeepvat, Charlotte. Heiligenberg: Our Ardently Loved Hill. Published in Royalty Digest. No 49. July 1995.

Zeepvat, Charlotte. The Camera and the Tsars, Sutton Publishing, 2004. .

Zeepvat, Charlotte. Romanov Autumn:Stories from the last century of Imperial Russia. Sutton Publishing, 2000.