Citadel

The Citadel, also known as Citadel Station, was a prison constructed on the planet Lola Sayu by the Galactic Republic to hold rogue Jedi. Early in the Clone Wars, it was captured by the Confederacy of Independent Systems and Osi Sobeck became its warden. The prison held Jedi Master Even Piell and several officers which included Captain Wilhuff Tarkin where they were interrogated for the coordinates of the Nexus hyperspace route. They were rescued however by a team of Jedi and clone troopers who were forced to contact the Republic to send a fleet to the planet after their only means of escape was destroyed. During the Imperial era, the Citadel was home to a Separatist holdout.

Text and facts from the “Citadel” article on Wookieepedia, licensed under CC BY-SA 3.0. Modified for this site.