1997 animated film starring the voice talent of Meg Ryan in the title role (9)
I believe the answer is:
anastasia
(Other definitions for anastasia that I've seen before include "Daughter of Tsar Nicholas II once rumoured to have escaped execution" , "Film" , "Youngest daughter of Tsar Nicholas II" , "child of the Tsar" , "Russian princess thought once to have survived the revolution" .)