How did Anna Anderson know the Romanov's Secrets?

Answer:
No one really knows. People who knew Anastasia thought that Anna Anderson was Anastasia because she knew little things about Anastasia's life that someone who was not Anastasia would not know. However in one book it has been theorized that Gleb Blotkin (the son of the Romanov's doctor who was killed with them, childhood playmate of the real Anastasia and chapion of Anna Anderson) fed her information that she needed to fool people.
First answer by Cdonorab. Last edit by Cdonorab. Contributor trust: 115 [recommend contributor recommended]. Question popularity: 2 [recommend question].