Anna Petrovna, Tsesarevna of Russia (27 January 1708, Moscow - 4 March 1728, Kiel) was the eldest daughter of Emperor Peter I of Russia and Catherine I of Russia. Her sister Elizabeth ruled as Empress between 1741 and 1761. Her son Peter ruled as Emperor between 1761 and 1762. Anna was born out of wedlock and was legitimized on the wedding of her parents in 1712. Her perceived illegitimacy caused several projects of matrimonial alliances to be turned down. Wikipedia
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