Dathomir Dathomir was a remote , neutral planet in the Quelli sector and the home of the Nightsisters . The planet , lit red by its central star , had numerous continents that were overrun with vegetation , forest s , and swamp lands . The dark side of the Force had an immensely strong presence on Dathomir , which allowed for the nurturing of many malevolent Force wielders native to the planet . The Nightsisters , also known as the Dathomir witches , made their home in the swamps , and wielded magick s fueled by Dathomir ' s own power . Dathomir was also home to the Nightbrothers , Zabrak s who were ruled by the Nightsisters . During the Clone Wars , Dathomir would come under attack multiple times due to the machinations of Mother Talzin and her rival Darth Sidious , leading to the destruction of most of the Nightsisters and settlements on the planet by the Confederacy of Independent Systems after conquering it . Asajj Ventress , a Nightsister trained by Count Dooku , returned to Mother Talzin after her master betrayed her , drawing Dathomir to Dooku ' s attention and concluding in a battle where all the Nightsisters but Ventress and Mother Talzin were killed . In 2 BBY , Maul returned to Dathomir with the Jedi rebel Ezra Bridger to conduct a ritual that involved summoning the spirits of fallen Nightsisters in order to reveal fragments of a holocron vision . As a result , Maul and Ezra learned that the Jedi Master Obi - Wan Kenobi held the key to destroying the Sith and that he resided on a planet with twin suns . History . Prior to the Battle of Naboo , the Sith Lord Darth Sidious went to Dathomir where he traded secrets of the dark side of the Force with the Nightsisters ' leader , Mother Talzin . He took Talzin ' s son , the Nightbrother Maul as his apprentice . One of Talzin ' s fellow nightsisters also had a child , Asajj Ventress and was forced by Talzin to give her up to the criminal Hal ' Sted in order to protect their coven . Clone Wars . During the Clone Wars , Ventress returned to Dathomir and her coven ' s village following Count Dooku ' s assassination attempt at Sullust . Ventress was then healed and accepted the Nightsisters ' help in assassinating Dooku . Despite Ventress ' s failure , Talzin was able to reach out to Dooku and offer him a new assassin to replace Ventress . Dooku traveled to Dathomir to the Nightsisters ' village where he proposed an alliance between his Confederacy of Independent Systems and Talzin ' s coven . Talzin refused his offer but agreed to supply him with a Nightbrother similar to Maul . Dooku accepted her offer and departed . Ventress traveled to the Nightbrother village , where she chose several to participate in tests in their arena . After killing and wounding several of the chosen Nightbrothers , Ventress chose Savage Opress to be her replacement . Ventress then took Opress to the Nightsister ' s village , where they used their magick to increase his strength and power . After Opress demonstrated his loyalty by killing his brother , he was given to Dooku . Jedi Master Obi - Wan Kenobi and Jedi Knight Anakin Skywalker went to Dathomir to speak with the Nightbrothers about Opress ' s whereabouts . Brother Viscus told them one of Talzin ' s Nightsisters took Opress as a mate to their village . Kenobi and Skywalker went to the Nightsisters , where Talzin told them that Opress was on Toydaria . After Opress ' s role was discovered , he returned to Dathomir . There , Talzin told him that his last surviving brother , Maul , was in exile somewhere in the Outer Rim . Opress left to find him , promising to return . Ventress returned to Dathomir , where she was fully accepted into the Nightsisters . However , Darth Sidious and Dooku decided to send Grievous and his Droid Army to Dathomir to wipe the Nightisters out for their attempts on Dooku ' s life . At first , the Nightsister and their Army of the Dead were able to hold out against Grievous ' s forces . However , Dooku was able to subdue the Nightsisters when Grievous killed Old Daka . All the Nightsisters , except Ventress and Talzin , were eradicated . While Ventress became a bounty hunter , Talzin continued to guided Opress to his brother from the village . Opress later returned to Dathomir with Maul . At the village , Talzin was able to restore Maul ' s sanity and gave him a new pair of cybernetic legs before she disappeared . Ventress returned to Dathomir with under cover Jedi Master Quinlan Vos to teach to use his emotions to to strengthen his bond with the Dark Side . After Ventress was killed , Vos and Kenobi returned her body to Dathomir . There , they gave her a funeral . Maul returned to Dathomir with Dooku to the Nightbrothers village . There , Talzin attempted to use Dooku in a ritual that would restore her physical form . However , Grievous , Sidious and their forces then laid siege to Dathomir . With the Shadow Collective decimated and Talzin dead , Maul and what remained of his forces fled . Imperial Era . Following the formation of the Galactic Empire , Maul returned to Dathomir with Ezra Bridger . There , they went to the Nightsister village to partake in a ritual that would give each other the knowledge they sought from holocron s .