Grand Duchess Anastasia Nikolaevna of Russia
In The Romanov Prophecy, a 2004 novel by Steve Berry, Anastasia and Alexei are saved by guards and taken away to the United States. There, they live under false names with a family paid by Felix Yusupov. In the novel, both children died in the 1920s because they became sick. However, before they died, Alexei married and had a son.