The Holocron of Thra'Val is an ancient holcron created by former Jedi Master and later Sith Lord Thra'Val between 21,248 and 21,231 BBY. It contained a rare and powerful crystal that could decipher a set of contents of other holocrons, with locations of the Ancient Superweapons. Next to the crystal it also contained a fragment of Thra'Val's power and soul as the holocron's guardian, able to influence the mind of unguarded Padawans. It was first encountered by Kenli-shun during the Cold War on Tython.