Bree Talzin was a Dathomirian witch during the Clone Wars and was the mother of Mother Talzin. But before the Clone Wars she was a Sith Lord. But resigned 20 years before the Clone Wars. After Order 66, Emperor Palpatine had summoned her to the Senate building, but it was a trap. Palpatine had summoned her to Coruscaunt for her own execution, for she knew the Sith Lord's weakness and thought that she was too dangerous to be kept alive. So Sidious impaled her in the stomach, killing her on the spot.