Mussubir III, also known as just Mussubir, existed as a planet within the Mussubir system. This system was situated in the Senex sector, which itself was located in the Mid Rim region of the galaxy. House Araba held dominion over this world, which served as a significant center for industry.
The governor maintained an alliance with Roganda Ismaren. Sometime in 12 ABY, he vanished while supposedly on 'vacation'.