As we all know, the story of Princess Leia Organa suggests that she was one of the truly good people in a galaxy far, far away. A place in which it was easier to join the dark side out of fear and a lust for power than to join the light side struggling just to survive. Trained by Luke to be a Jedi knight she was known to be a compassionate and strong leader, with goals of establishing a working form of government that benefited all.
But there are some who suggest that she was secretly an extremely powerful Sith lord! She was so powerful she was easily able to resist interrogation by Lord Vader and hide her true identity from him. But after the destruction of her home world and then finding out that the death of her own birth mother was at the hands of Vader, her father, she was overwhelmed by anger and great sadness which eventually led her to the dark side. This was all made even more evident by the fact that she eventually became the mother to multiple sith lords, Kylo Ren and Darth Caedus.
While her true identity may never be known, we have to wonder what hidden dark forces flowed within her veins?