Grand Duchess Anastasia Nikolaevna Romanova of Russia. (ca 1910) [1526×1536]

Anastasia was the youngest daughter of Tsar Nicholas II and Tsarina Alexandra Feodorovna
https://en.wikipedia.org/wiki/Grand_Duchess_Anastasia_Nikolaevna_of_Russia

The story of the woman who pretended to be Anastasia for decades is interesting. she went under the name Anna Anderson.

There were a lot of people who believed she was the real deal even though she didn’t look like Anastasia or even speak Russian, until the remains of the Romanovs were found and DNA tests revealed to show she was not related decades after she died.