The Chiss Ascendancy is a sovereign, oligarchic empire based in the Unknown Regions of the galaxy., Later, wile traveling back to a transfer point, Thrawn's flagship, the Imperial-class Star Destroyer Chimaera, stumbled upon the wreckage of the Allanar N3 freighter and detected a cloaking device and gravity well nearby which was hiding an asteroid observation post. Despite his aid in helping the Empire to map the Unknown Region's hyperspace routes, Thrawn decided to withhold the location of Chiss worlds and bases. The Chiss Ascendancy was a government of the Chiss people located in Chiss Space in the Unknown Regions.