Stygeon Prime

Stygeon Prime, also known simply as Stygeon, was a mountainous snowy planet located in the Stygeon system of the Outer Rim Territories' Nuiri sector. During the Clone Wars, the Sith Lords Darth Tyranus and Darth Sidious imprisoned Sidious's former apprentice Darth Maul in the Spire. Maul was later broken out by Mandalorian forces that were part of the Shadow Collective. The Spire was later taken over by the Galactic Empire.

Behind the scenes
The planet Stygeon Prime, referred to then as Stygeon, was first mentioned in the Blaster segment of Star Wars Insider 149, which discussed the upcoming Star Wars: Darth Maul—Son of Dathomir miniseries. It first appeared in the first issue. The planet's full name was revealed in Star Wars Rebels: The Visual Guide.

Appearances

 * Star Wars: Darth Maul—Son of Dathomir 1
 * Star Wars: Darth Maul&mdash;Son of Dathomir 2
 * Droids in Distress book
 * The Inquisitor's Trap
 * Servants of the Empire: Rebel in the Ranks
 * Servants of the Empire: Rebel in the Ranks