Dathka Graush lived about seven millennia before the Battle of Yavin, and was skilled in the use of Sith alchemy. He was entombed on Korriban roughly fifty years after he had won one of the planet's periodic civil wars and established a dynasty that ruled over two-thirds of the planet.
Graush's holocron was placed in Graush's tomb along with his Sith sword and a Sith amulet.