Gethzerion

Gethzerion was a particularly evil sith witch from the planet of Dathomir. The people of Dathomir lived in clans ruled by female leaders with the male population serving as servants and mates. During the reign of Gethzerion many of the Dathomirians were killed or captured by Gethzerion's clan The Nightsisters. These women's control over the force was developed from a method of selective breeding to ensure power. While The Nightsisters believed that they had to perform rituals to unleash their force powers, only Gethzerion realized the true power that she could control. Emperor Palpatine knew of her power while he was alive and ordered that she be kept trapped on Dathomir where she could still rule but not use her power elsewhere. Commander Zsinj who would later become a ruling imperial warlord was assigned to keep an eye on Dathomir. When Han Solo crash landed the Millenium Falcon on Dathomir, Gethzerion was contacted by Zsinj and the two of them managed to capture Han Solo and Princess Leia. Gethzerion finally met her match in Luke Skywalker and Tennel Djo(a Dathomirian from another clan)when they turned up to rescue their friends. Gethzerion fled in a space carrier but was killed when Han Solo opened fire in the Millenium Falcon. The Dathomirian's were free of Gethzerion's tyranny.