Governors existed in the Galactic Republic, though it was a federal system, therefore control of local systems and sectors were left to their own governments. It seems that the Old Republic only used governors temporarily, for systems that were unstable or for those that were newly-admitted to the Republic and lacked any capable governing system of their own. Mousul sought to get appointed sector governor of Ansion's region of space. During the Jedi Civil War Taris had a Governor appointed to oversee the Sith on Taris. He was eventually killed by Revan, who was seeking passage off-world.