Serra Serra was a Force - sensitive female Human born from Ambria who was the daughter of the healer Caleb . After attempting to kill the Dark Lord of the Sith Darth Bane to avenge her father ' s death , she was killed by Darth Cognus . Biography . Early life . In 1000 BBY , Darth Bane came to Caleb , poisoned by synox , and looking for someone to cure him . Caleb initially refused to heal him , but when Bane threatened his daughter ' s life , using the Force to levitate her over a boiling pot , he relented and healed the Sith Lord . In 992 BBY , Caleb forced his sixteen - year - old daughter to change her name and move to a different planet so that she could not be threatened by Bane again . When Bane ' s apprentice , Darth Zannah , came to Caleb to save her Master ' s life in 990 BBY after a duel on Tython , Caleb informed Zannah that his daughter had moved away , and that she could not use her as leverage against him as Bane had done previously . Zannah still managed to strike a deal with Caleb to heal Bane , before killing the healer and evading the team of Jedi that came looking for them . Falling in love and Princess of Doan . After leaving Ambria , Caleb ' s daughter took the name of Serra and began using her healing abilities around the galaxy . After saving Lucia ' s life , the former member of the Gloom Walkers became Serra ' s bodyguard . Serra later met Prince Gerran of the Doan Royal House , who suffered from an illness . Serra tended him and healed him . Over time , the two fell in love and Gerran proposed to Serra . She accepted , despite the fact that Gerran ' s father opposed this union . She therefore became the Princess of Doan . Quest for Revenge . Voyage to Coruscant and hiring the Huntress . During the time following the New Sith Wars , the Doan Royal House came into conflict with the planet ' s mining caste . In 980 BBY , Gerran was accidentally killed by the miners , an event which sent Serra into a deep depression . Hoping to alleviate Serra ' s pain , Lucia arranged for the assassination of a mining caste leader , Gelba ; however , a Jedi Knight , Medd Tandar , was also killed in the attack . Serra traveled to the Jedi Temple on Coruscant to reassure the Jedi that the assassination was not the fault of the Doan Royal House . While in the Jedi Temple , Master Obba showed Serra a monument which honored the five Jedi who died at Tython , as well as Caleb . Shocked to find that her father had died , Serra swore vengeance and hired the same assassin that Lucia had hired to kill Gelba — known as the Huntress — to capture Bane , whom she believed had killed her father , thus taking her first step toward the dark side . Torturing Darth Bane and Lucia ' s death . Darth Bane was captured by the Huntress and about twenty mercenaries provided by Serra . Bane was then brought to the Stone Prison on Doan , where Serra , now steeped in the Dark Side , tortured and interrogated him , keeping him drugged so he couldn ' t escape , only to find that he denied having killed her father . Lucia , shocked by the vengeful person Serra had become — and remembering the many times that Bane had saved her life as a member of the Gloom Walkers — decided to free Bane . Meanwhile , Zannah and her new apprentice , Set Harth , arrived on Doan to rescue Bane from Serra , since Zannah needed to personally defeat her master before becoming the next Dark Lord of the Sith . Zannah discovered that Bane had been freed and attacked him in the Prison . Serra , hoping to kill the two Sith , activated the self - destruct sequence for the prison before fleeing with the corpse of Lucia , who had been killed by Zannah . Bane and Zannah ' s duel ended in a draw , and they both escaped the collapsing prison . Bane found the Huntress as he fled , and the assassin submitted herself to his teachings , taking on the name of Darth Cognus . Death . Serra returned to her home on Ambria , where she realized that her father would never have wanted her to be the vengeful person she had become and let go of the Dark Side and her anger . She buried Lucia outside her father ' s hut . However , Bane and Cognus arrived soon after ; Cognus had tracked Serra there through the Force . Serra refused Bane ' s proposal to serve him as a healer and she tried to convince Cognus that the dark side would destroy her . However , Cognus merely requested Bane ' s permission to kill Serra . Bane then ordered Cognus to bury the body , not out of any respect , but to merely keep away scavengers . Personality and traits . Serra , like her father , was a good - hearted person who sought to use her healing abilities to help others and was willing to heal even Lucia after she threatened her with a blaster . She was also strong willed and was able to stand up to anyone , from Lucia and bounty hunters to Darth Bane during their last confrontation on Ambria . However , Serra had a dark side which stemmed from the constant threat of the " dark man " of her past . She suffered many years from nightmares of the encounter , dreams that went away when she married Gerran . However , Gerran ' s death brought out the dark side of her personality and she was willing to do anything for vengeance against Darth Bane . Only after Lucia ' s death did she see through her desire for revenge . The loss of the one who was like a mother to her drove her out of her fury . Serra sacrificed her life to try and end Darth Bane ' s Sith Order by driving Darth Cognus back to the light . She failed , but this was a last act of goodness to try and redeem herself from her crimes .