Kosh Teradoc Kosh Teradoc was the younger brother of Treuten Teradoc and also an Imperial admiral and a warlord . Biography . Kosh Teradoc was born into a hardscrabble family on the planet Er ' Kit , located in the Outer Rim Territories . While growing up , both Kosh and his older brother , Treuten — who was born one year before him — , had dreams of playing at Piethet Brighteyes and the raiders of the Ryloth Ark , a fictional story . Joining the Navy . Despite being a poor physical specimen , Kosh , along with his brother , enrolled in the Corulag Academy , an Imperial academy located on the planet Corulag . Kosh excelled at naval theory , and both he and his brother worked hard to outperform one another . His hard work would pay off , as he achieved the rank of captain almost simultaneously with his brother . Both would be assigned to Crimson Command , a fleet of red hulled " Victory " - class Star Destroyers designed to act as a rapid response task force in the Quelii Oversector and led by High Admiral Zsinj . Despite having achieved a command rank , Kosh ' s rivalry with his brother would continue , especially when his older brother was promoted to High Admiral and given command of Crimson Command . Treuten took every opportunity to rub his promotion in Kosh ' s face , which inspired Kosh to achieve an admiralty of his own , along with command of the larger , more modern " Imperial II " - class Star Destroyer " Lancet " . Having not been present for the Battle of Endor in 4 ABY , Kosh did as many other Imperials ( including his brother ) were doing , namely going renegade and setting up their own Empires . Whereas his brother stayed in the Mid Rim to rule over the newly formed Greater Maldrood , Kosh followed the example of Admiral Blitzer Harrsk , and struck out for the Deep Core . It was here he became more dedicated to the art of war than ever . He set up his own Empire around the Deep Core , and was constantly warring with and absorbing contenders , while alternately allying both with and against Harrsk . His many successes would lead to Kosh adopting the rank of High Admiral , and coming to lead an impressive military force . However , these successes also made him arrogant , as he began likening himself to warlords such as Zakrinand Minus and Mandalore the First . Federated Teradoc Union . In 8 ABY , Kosh was forced to come to his brother ' s aid , after Treuten barged into a fight between the Empire and the New Republic , making himself a nuisance , and causing both governments to vow to crush him . Following the rescue , Kosh and Treuten consolidated their Mid - Rim and Deep Core territories , creating the Federated Teradoc Union . The brothers ' territory continued to expand as they conquered towards each other . At one point however , their alliance almost fell apart . Leonia Tavira , a former Moff turned pirate , played them against one another , though they were able to curb their jealousies long enough to swear allegiance to the reborn Palpatine , known to them as the Omnipotent Battle Leader . Shortly after swearing allegiance to the reborn Emperor , all out war with the New Republic began . Treuten fared badly in this conflict , and Kosh would order both him and his battered Crimson Command into the Deep Core , while he worked to preserve their holdings in the Mid Rim . < nowiki > < / nowiki > Unbeknownst to him , this move would have grave repercussions for both Teradocs . Eager to impress his younger brother , Treuten used his forces to battle Supreme Warlord Blitzer Harrsk , a conflict which led to bloody attrition for both . When Admiral Natasi Daala attempted to act as mediator between the two and other feuding warlords in the Deep Core , Treuten ' s strike on Harrsk ' s fleet and the subsequent retaliatory strike by Harrsk on Teradoc ' s fortress convinced her to ally with Teradoc ' s second - in - command , Gilad Pellaeon . The two arranged a meeting of the 13 strongest Imperial warlords . When they would not agree to act in unison , Daala had them all , including Treuten , gassed . < nowiki > < / nowiki > Despite his previous antipathy with his brother , Kosh took Treuten ' s death as a bitter blow . While he continued to control his brother ' s now greatly reduced Greater Maldrood , the death of his brother and so many other warlords led him to contemplate retirement . In 13 ABY , Teradoc traveled to the planet of Ryvester with the intention of collecting a valuable artifact from Captain Hachat inside a bar . Hatchet was in fact an alias being used by Garik " Face " Loran of Wraith Squadron , who had lured Teradoc in with the intention of saving Doctor Mulus Cheems , a mineral analyst who Teradoc was holding prisoner for his own selfish purposes . Wraith Squadron caused a commotion in the bar that allowed them to succeed in their mission of saving Cheems while Teradoc had collected his artifact . However , as Wraith Squadron would later reveal to the saved Cheems , it turned out that the artifact was in fact created from a modified form of anthracite , a type of starship fuel , in crystallized form . The artifact was equipped with atmospheric pressure meters , and was designed to detonate once it was deep within Teradoc ' s base on Ryvester , in order to destroy his research and development labs , where plague viruses , toxins , and a sonic device designed to shatter lightsaber crystals were being developed . Once the device detected it was at the depth of Teradoc ' s personal vault , it detonated , killing Teradoc and causing the research lab ' s automated decontamination measures to activate . These measures would ensure everything within the site was turned to ash and chemically sterilized . Behind the scenes . Kosh Teradoc was created by veteran " Star Wars " author Aaron Allston , who first appeared in his novel , " " .