Conscio was a dark side world in the Outer Rim Territories. Sometime during or after the First Jedi Schism, a conflict within the Jedi Order a few centuries after the foundation of the Galactic Republic, the teachings of the Legions of Lettow and its leader Xendor, the first Dark Jedi and the catalyst behind the First Jedi Schism, were placed in an enclave on Conscio. By all accounts, the planet and the teachings of Xendor were forgotten in the thousands of years that followed.