Darth Gravid

"The last Sith possessed of the knowledge had been inexplicably drawn to the light side, and killed, taking the secret process with him."

- Darth Plagueis

Darth Gravid was a short-lived Dark Lord of the Sith who reigned approximately 500 years before Darth Sidious. He was the last Sith of Darth Bane's lineage to possess the knowledge of essence transfer, but was inexplicably drawn to the light side of the Force and sabotaged the teachings to ensure that no Sith attained immortality.

Biography
Gravid believed that there was a place for emotions such as compassion and selflessness within the Sith but was soon killed by his apprentice, who did not share her master's philosophy, and the techniques he had sought to conceal from the dark side's practitioners would remain lost for centuries. Ultimately, Gravid contributed to the rise of the dark side far more than he ever intended. By depriving his successors of essence transfer he eliminated centuries of obsession that had long distracted the Sith from implementing the "Grand Plan" and exacting their revenge against the Jedi, and the Republic.

Appearances

 * Star Wars: Darth Plagueis