Initially known as the Princess of Kimlasca-Lanvaldear and Luke's fiancée, she fully believes that the function of nobility is to tend to the needs of their subjects. She is 18 and is loved by her people for her various public works projects.
As the game progresses, it is revealed that Natalia is not the birth Princess of Kimlasca-Lanvaldear and that her biological father is Largo the Black Lion of the God-Generals.

Source:Wikipedia