Prakith / Legends Prakith was a mountainous fortress world located in the Prakith system of the Deep Core that , thanks to its unstable terrain and its isolation , was a difficult location to conquer by force . The planet was a powerful Sector 5 fortress world during the Galactic Civil War and later the personal empire of Moff Foga Brill . Description . Early in the planet ' s history , Prakith was a volatile , volcanic world , but was stable enough for Imperial survey teams to explore it during their expeditions into the Deep Core . Prakith ' s close proximity to the Galactic Core made it a prime location for a hidden redoubt , and was one of the first Deep Core worlds to be civilized . It had a strong Mining Guild presence . Prakith ' s major cities ( such as Prak City ) were built atop the planet ' s large plateaus , surrounded on all sides by great caverns and crevasses . Since ground travel across such terrain proved difficult , natives often used cloud cars and airspeeders for transportation . The natives were , under Imperial rule , a relatively subdued and businesslike population . History . Early history . During the time of the ancient Sith Empire , the Sith Lord Darth Andeddu built a tomb for himself on the planet , hidden inside his keep , after escaping his enemies by building a false one on Korriban . There , his mummified body lay for thousands of years . Millennia later , Darth Bane visited the planet following the end of the New Sith Wars in order to obtain Darth Andeddu ' s holocron . Galactic Civil War . The Emperor himself selected Prakith as the base of operations for the Inquisitorius following the end of the Clone Wars . Circa 17 BBY , Jedi Master Denia was captured by her former Padawan , Imperial Inquisitor Valin Draco . She was held deep within the Citadel Inquisitorius on Prakith and tortured . Her allies in the Alderaanian Resistance later tried to rescue her by attacking the Citadel , but she sacrificed herself during the battle to allow the Rebels to escape . The Imperials on Prakith voted to continue the war against the New Republic even after the death of Palpatine , and supported the reborn Emperor during his attempt to retake the galaxy . With the destruction of Byss , the Prakith system became an independent Imperial territory led by warlord Moff Foga Brill , the Constitutional Protectorate of Prakith , who was only nominally under the authority of Grand Moff Gann . The planet was impoverished , living conditions miserable . Brill fortified Prakith and isolated his micro - empire , defended by a strong planetary defense fleet . The planet was later involved in many years of attritional warfare with the New Republic . Foga Brill ' s ships " Bloodprice " and " Gorath " were destroyed in the Prakith system by the " Teljkon Vagabond " in 17 ABY . In 18 ABY , Foga Brill was betrayed by a cabal of his officers , who killed him and attempted to broker peace with the New Republic . The Prakith system was then integrated into the New Republic and reconnected with the rest of the galaxy . Later history . At some point before 37 ABY , a group of dark side cultists found Andeddu ' s Keep and isolated themselves there for generations , drawing upon its powers . By 137 ABY , the world was still inhabited , with the keep still being located far from the nearest city , hidden amongst inaccessible terrain . Darth Wyyrlok the Third ventured to the planet in an attempt to find a cure for his master ' s illness . He was tricked by the holocron of Andeddu , which secretly contained his intellect , and was first ambushed by the cult , then the reanimated Sith Lord himself . After having bested the Sith and buried his remains , Wyyrlok took several of his texts and left the planet .