The Outer Rim Territories of the galaxy contained the Nuiri sector, and within that sector existed a star system called the Stygeon system. [Stygeon Prime](/article/stygeon_prime], a habitable planet with at least two orbiting moons, was part of this system. The Confederacy of Independent Systems ran a prison on Stygeon Prime called the Spire during the time of the Clone Wars; the Galactic Empire subsequently took control of this prison.