Delrian
Delrian was a prison planet used to incarcerate the worst of criminals. During their stay on Delrian, prisoners were put to work in the mines that riddled the planet's crust, excavating ores that were sold to help fund the prison's operations. During the early stages of the Clone Wars, Wat Tambor was incarcerated there before he was rescued by Separatist commandos. Doctor Evazan was also imprisoned there, until he escaped to the Hindasar System. Use of the Delrian prisons continued during the early years of the New Republic, as a deterrent against the various forms of unrest that cropped up in the wake of the Battle of Endor.