Princess Leia Organa of Alderaan is a fictional character in the Star Wars franchise, portrayed She thwarts the sinister Sith Lord Darth Vader and helps bring about the destruction of the Empire's cataclysmic superweapon, the Death Star.
The Skywalker family is a fictional family in the Star Wars franchise. Within the series' fictional universe, the Skywalkers are presented as a bloodline with strong inherent capabilities related to the Force. Luke Skywalker, his twin sister Princess Leia, and their father Darth Vader
Originally Answered: Why couldn't Darth Vader sense Princess Leia was his daughter? SPOILER ALERT - Contains content from new series.