Spire (Stygeon Prime)

During the Clone Wars, the Confederacy of Independent Systems operated a hidden prison on the planet Stygeon. Following his capture at the hands of Darth Sidious on Mandalore, Darth Maul was held captive in the prison, where Sidious and Count Dooku tortured the former Sith Lord for information about his Shadow Collective allies. Maul escaped from the prison with the help of Death Watch forces.

Appearances

 * Star Wars: Darth Maul&mdash;Son of Dathomir 1
 * Star Wars: Darth Maul&mdash;Son of Dathomir 2