Maris Brood (Earth-2042)

"I've seen her kind before. A young Jedi who turned to the dark side, corrupted and murderous... You shouldn't have let her go free. You really think she's free? She'll carry the memory of what she's done here forever."

- Bail Organa and Galen Marek

Maris Brood was a female Force-sensitive Zabrak Jedi Padawan, who survived the initial stages of the Great Jedi Purge. She spent many years in hiding with Jedi Master Shaak Ti on the planet Felucia. After her master's death, she was corrupted by the dark side of the Force, along with the entire planet and its native population. After Brood captured Senator Bail Prestor Organa, she was confronted by Darth Vader's Sith apprentice, Starkiller, who defeated her in combat. Initially tempted to kill her, the apprentice ultimately spared Brood's life and allowed her to disappear into hiding once more.

Source

 * https://starwars.fandom.com/wiki/Maris_Brood