Cassandran sectors
The Cassandran Sectors were three sectors in the Outer Rim created by the Galactic Empire. They consisted of Cassander Sector, Tadrin Sector, and Tendrannan Sector. During the Outer Rim Sieges of the Clone Wars, Jedi General Traavis led a campaign in these sectors.
Prior to Imperial rule, the sectors were a loosely governed domain called the Cassandran Worlds, which contained over 100 star systems.