Dev Sibwarra was a Human boy who was born on Chandrila. His mother, Ydra, was a Padawan who had left the Jedi Order before her training was completed; as such, she survived Order 66 and the early stages of the Great Jedi Purge. Prior to 2 BBY, Dev and his family moved to the Outer Rim colony world of G'rho to escape detection from the Galactic Empire. Shortly afterwards, G'rho was attacked by the Ssi-ruuk—a saurian species who ruled a sizeable interstellar empire in the far reaches of the Unknown Regions.