Testria was a terrestrial world located by Keldon Tyfus when he was a Grand Admiral for the Galactic Empire. He sent his forces there, thus avoiding the Battle of Endor all together, and established a base on the world, which later became the headquarters of his Shadow Imperium. The planet remained unknown until the Sith Revolution, when Darth Trayus lead his forces against the Shadow Imperium's and, upon killing Darth Invisus, claimed the Shadow Imperium. Now within the sphere of influence of the new Crimson Empire, the planet retained its status as the government's headquarters.