Shortly after the Clone Wars, Luminara Unduli was held prisoner at and subsequently executed in the Spire. The Inquisitor used her remains to lure other surviving Jedi to the prison and ambush them. One such instance of this occurred with Kanan Jarrus and the crew of the Ghost, who sought to free Luminara from captivity.
- The Spire was originally created for the Star Wars: The Clone Wars television series, serving as the Separatist prison where former Sith Lord Darth Maul was held after he was captured by Darth Sidious. The Spire made its first appearance in the comic adaptation of that story arc.
- "Rise of the Old Masters" (First appearance)