Osi Sobeck held the position of Citadel warden.
The title of warden was bestowed upon individuals serving as the commandant of a prison facility. During the Clone Wars era, Osi Sobeck functioned as warden for the Separatist detention center situated on Lola Sayu, known as the Citadel.
Following the Battle of Endor by a period of thirty years, the privately operated correctional facility Megalox, located on Megalox Beta, was under the supervision of warden Luta.