Anastasia didn't escape the murder of the Romanovs.
Originally she and her younger brother Alexei were thought to have escaped, as their remains weren't found along side the rest of the family.
But their bones were later discovered in the same forest area as the rest of the family and DNA found in the bones matched both Nikolay Romanov (Nicholas II) and his wife Alexandra Feodorovna (Alix of Hesse) confirming that the remains belonged to the two missing Romanov children.
The uncertainty that Anastasia or Marie and Alexei died in the massacre, and they somehow escaped.
Anastasia
Anastasia Simone goes by Sez.
Anastasia Konstantinou goes by Stacy.
Anastasia Gale goes by Ana.
Anastasia Ashley goes by Stasia.
Anastasia Bartzoulianou goes by Annie.
Anastasia Washington goes by Stacey.
Anastasia Griffith goes by Sas.
Anastasia Hufnail goes by Stasia.
Anastasia
Anastasia There are some websites about the investigation of this theory.