I Was Anastasia
By: Ariel Lawhon
Anastasia Romanov was one the daughters of the last Czar of Russia. The family was taken prisoner during the revolution and disappeared. (No one learned until decades later what their actual fate had been.) A couple of years later a young woman throws herself off a bridge in Germany. She later comes to be known as Anna Anderson but for many people she was the Duchess Anastasia.
I’m not sure if I should mark spoilers or not but if you aren’t aware of the real life story or it’s resolution and you want to go into the book that way- you probably shouldn’t keep reading.