What theories are there on Grand Duchess Anastasia Nikolaevna of Russia?
Her Imperial Highness Grand Duchess Anastasia of Russia (Anastasia Nikolaevna Romanova, (Russian: Великая Княжна Анастасия Николаевна Романова (June 18 [O.S. June 5] 1901 — July 17, 1918), was the youngest daughter of Tsar Nicholas II of Russia, the last sovereign of Imperial Russia, and his wife Alexandra Fyodorovna. Anastasia was a younger sister of Grand Duchess Olga, Grand Duchess Tatiana and Grand Duchess Maria, and was an elder sister of Alexei Nikolaievitch, Tsarevitch of Russia. She is presumed to have been murdered with her family on July 17, 1918, by forces of the Bolshevik secret police. However, rumors have persisted of her possible escape since 1918, fueled by reports that two sets of remains, identified as Alexei Nikolaevich, Tsarevich of Russia, and either Anastasia or her elder sister Maria, were missing from a mass grave found near Ekaterinburg and later identified through DNA testing as the Romanovs. In January 2008 Russian scientists announced that the charred remain