Tarnis (Sith Lord)

Tarnis was a Human male Sith Lord of the reconstituted Sith Empire who lived during the Great Galactic War and the subsequent Cold War with the Republic. The son of the legendary Darth Angral, Tarnis was trained by his father's apprentice Lord Praven to the rank of Sith Lord before embarking on an undercover assignment not long after the Treaty of Coruscant ended the Great Galactic War. Posing as the Republic scientist Eli Tarnis, he infiltrated the Republic's superweapon projects and quickly became the head of the design team for the Planet Prison weapon on the Republic's capital Coruscant. While his initial purpose was to gather information from inside the Republic, Tarnis believed his cover was in danger in 3643 BBY when the Jedi Master Bela Kiwiiks arrived on Coruscant to investigate a "dark presence" the Jedi Council had sensed on the capital. He made his move and attempted to steal the Planet Prison with the help of the criminal organizations known as the Migrant Merchants' Guild and Black Sun.

Staging his own kidnapping from the Senate Building after hiring a thief to steal the design files for the Planet Prison, Tarnis fled to the territory of the paramilitary Justicars' Brigade, but was pursued by a young Jedi Knight. Tarnis' true identity was uncovered by the Jedi Knight, working with the Republic Strategic Information Service, the Coruscant Security Force, and the Padawan Kira Carsen, and the Sith was followed to the ruins of the Jedi Temple, where the Knight and Carsen faced the Sith Lord in a duel in order to stop him from using the Planet Prison against Coruscant itself. Tarnis' death was witnessed via hologram by his father, who declared everlasting vengeance upon his son's killer and embarked on a crusade to gain revenge upon the Jedi.

Text and facts from the “Tarnis (Sith Lord)” article on Wookieepedia, licensed under CC BY-SA 3.0. Modified for this site.