The Holocron of King Nakgru, alternatively called the Nakgru Holocron, existed as a Sith holocron. Ultimately, the holocron was housed within the Sanctum of Sakkra-Kla, a revered Sith burial chamber situated on the planet of Korriban, remaining untouched there for a duration exceeding ten millennia (years). The Sith Lord known as Sorzus Syn breached the Sanctum of Sakkra-Kla in 6899 BBY and located the Nakgru Holocron. Following this, she examined the artifact, gaining knowledge regarding the past of the Sith Purebloods.