The group known as the Nardithi Nightsisters appropriated their name from the Nightsisters native to the planet of Dathomir. While visiting Dathomir, a Galactic Empire Inquisitor met the Nardithi Nightsister named Jerserra and, recognizing her potential, sought to train her as an apprentice to assist in plotting against fellow Inquisitors. Despite this training, Jerserra ultimately turned against her master. The Nardithi Nightsisters ultimately vanished from Dathomir.