Prior to 20 BBY, C-3PO served as one of 1,200 interpreter droids at the sub-embassies in the Granicus system, assigned to a "third liaison officer" He served as an interpreter for 37 years before he was eventually redesignated a protocol droid and sent to the Outlands to help welcome new systems into the Old Republic.
Behind the scenesEdit
Granicus originally appeared only in the first draft of Star Wars, replacing Alderaan as the name for the Imperial capital. This planet's concept eventually found its way into the films as Bespin and Cloud City in Episode V.
This planet is not mentioned in The Essential Atlas.