Tiber Saxon Tiber Saxon was a human male who served as the governor of Mandalore following the death of his brother , Viceroy Gar Saxon . During the Mandalorian civil war against Clan Wren and House Kryze , Saxon deployed the " Duchess " , mounted on a modified AT - DP . The weapon , originally designed by the Mandalorian Sabine Wren , was designed to lock on to Mandalorian armor and vaporize the wearer . Saxon perished when Wren and her comrades infiltrated Saxon ' s Star Destroyer , based in Sundari , to destroy the weapon , eventually succeeding and destroying Saxon ' s vessel in the process , with Saxon still aboard . Biography . Upon Gar Saxon ' s death at the hands of Clan Wren , Tiber succeeded his late brother as the governor of Mandalore , in service to the Galactic Empire . Desiring a way to gain power over the rebellious clan , and those who had sided with them in the civil war , Tiber had the Arc Pulse Generator , a superweapon that Sabine Wren had built during her days as a cadet at the Imperial Academy of Mandalore that was also known as the " Duchess " , rebuilt . The weapon was designed to kill Mandalorian warriors by targeting the beskar alloy in their armor and superheating it , disintegrating the wearer . Sabine had erased the plans and sabotaged the prototype before defecting , out of horror that the Empire had turned her creation on her own people . Tiber himself , due to eschewing Mandalorian armor in favor of Imperial Jumptrooper armor , made of plastoid , wasn ' t bothered by the ramifications . Later , Tiber learned that Sabine had returned to Mandalore to gain support for the growing rebellion and to search for her father , Alrich Wren , who had been taken hostage by the Empire to ensure his family ' s compliance . Tiber had Alrich moved from the capital of Sundari to a remote prison to isolate him from his contacts in the capital . When he found out that Sabine and her forces were planning to attack the prison , Tiber secretly had Alrich placed on a convoy back to Sundari , intending to lay a trap for the rebels at the prison . However , Sabine ' s attack succeeded , with the assistance of reinforcements from Bo - Katan Kryze . Sabine ' s mother , Count ess Ursa Wren , had discovered Alrich ' s true whereabouts , but was unable to warn her daughter earlier due to Imperial jamming . The Imperial convoy transport ing Alrich was ambushed by the rebels , and Tiber told his men to stay put , as reinforcements would be arriving . The Imperial Troop Transport carrying Alrich and its two escorts diverted off into a canyon , where they were attacked by Sabine , Kryze , Fenn Rau , Ezra Bridger , Kanan Jarrus and Chopper , who successfully freed Alrich . Tiber unleashed the " Duchess " against the Clan Wren warriors at the original battle site , killing many of them . The attack failed to kill Ursa and Tristan Wren , who had narrowly avoided the weapon ' s area of effect thanks to a warning from Sabine , who had recognized the weapon ' s sound over the comms . On his own Star Destroyer , Tiber showed the results of the test of the " Duchess " to Grand Admiral Thrawn . The Grand Admiral was impressed with its power , but knew that Tiber had been trying to hide its flaws , namely that the weapon only had a very short range . Thrawn suggested that Tiber capture Sabine so she could improve it , which he agreed to . His captain , Hark , continued to protest the use of the " Duchess " , concerned that it was only a matter of time before the Empire turned it against all Mandalorians , both those loyal to the Empire and those who were not . Tiber set a trap , knowing that the rebels could not ignore such a dangerous weapon . His trap worked , as a rebel strike team led by Sabine arrived in the hopes of destroying the " Duchess " . Tiber confronted Sabine and Kryze , demanding Sabine re - calibrate the weapon so that he could bring Mandalore under his role . Hark continued to protest , suspecting that the Empire would use it on them when they had no need of them , so Tiber had the machine zap him in response . After Tiber threatened to kill Kryze , Sabine eventually agreed to re - calibrate the " Duchess " , so he temporarily shut the weapon down . Knowing that Tiber would not hold his word , Sabine secretly reset the Duchess to target Imperial armor instead . When Sabine was finished , Tiber attempted to electrocute the three Mandalorians , but when he turned the weapon on again he was shocked to find himself being zapped by the " Duchess " . The weapon was reactivated at a high enough strength to incapacitate all of the Imperial soldiers on the Star Destroyer . Sabine considered killing Saxon with the weapon , but Kryze talked her down , reminding her that doing so was fighting like the Empire , in a cowardly fashion . Hark used the opportunity to flee . Sabine instead used the Darksaber to breach the weapon ' s core , and the strike team fled before the Star Destroyer blew up , killing Tiber . Personality and traits . Tiber Saxon , like his late brother Gar , had sworn loyalty to the Empire in exchange for power . Tibor Saxon was very ruthless , and wanting to earn the respect of the Emperor . Unlike Gar , however , Tiber was willing to throw away all vestiges of his Mandalorian heritage , stating that the culture had to " evolve " to fit in with the times . As a sign of this , he wore Jumptrooper armor , made of plastoid , instead of the Imperial Super Commando armor his brother wore , made of the traditional beskar alloy . He wanted all of his people to kneel before him , and was willing to use the " Duchess " to kill untold numbers to do it . Tiber ' s adherence to Imperial ways came about , in part , because , according to him , Emperor Palpatine had shown him the path to true power . He was overall ruthless and would attempt to defeat anyone in his way , including Captain Hark , one of his own men . Behind the scenes . Tiber Saxon was voiced by Tobias Menzies in " " .