Umbriss's estate
The estate of Umbriss was a property that belonged to the Sith Lord Umbriss of the reconstituted Sith Empire during the era of the Cold War against the Galactic Republic. After Umbriss angered Darth Angral and was slain, this estate was seized by Angral, one of Umbriss's superiors in the Sith Order. Angral seized all of his fallen foe's assets, including the estate and his apprentice, Sadic.
Behind the scenes
The estate of Umbriss, along with its owner, is first and solely referenced in the 2011 video game Star Wars: The Old Republic, specifically within an in-game Codex entry. This Codex entry, which details the end of Lord Sadic, Umbriss's apprentice, also explains how Darth Angral came to possess Sadic as his own apprentice. Players of the Jedi Knight class obtain this entry upon defeating Sadic in the "Showdown with Lord Sadic" class mission, which takes place on the planet Nar Shaddaa.