Suzanna Catharina de Graaff's claim of being the fifth daughter of Tsar Nicholas II and Tsarina Alexandra, was accepted by one of several imposters who clamed to be who?
Suzanna Catharina de Graaff: Suzanna Catharina de Graaff, born Suzanna Catharina Hemmes, (5 May 1905, in Rotterdam – 25 November 1968), was a Dutch woman who claimed to be a fifth daughter of Tsar Nicholas II and Tsarina Alexandra. Suzanna Catharina de Graaff:  Her claim was accepted by Anna Anderson, who claimed to be Grand Duchess Anastasia Nikolaevna of Russia, but by few others. Anna Anderson: Anna Anderson (16 December 1896 – 12 February 1984) was the best known of several impostors who claimed to be Grand Duchess Anastasia of Russia.
Grand Duchess Anastasia of Russia