Broodica

Broodica was a female Jedi who—along with several other Jedi renegades—fell to the dark side and battled against the Jedi Order during the Hundred-Year Darkness. The renegades were defeated at the end of the conflict, leaving Broodica and her fellow darksiders to be branded Exiles and banished from the Galactic Republic. Traversing into the galaxy's Outer Rim, the Exiles proceeded to conquer the Sith civilisation of the planet Korriban, declaring themselves Lords of the Sith and establishing a new empire.

Under the title of Dark Lord, Broodica developed an obsession with the ancient scrolls of the Sith, particularly the power they contained. While setting out to collect such scrolls and tablets, she transferred her findings into a large personal grimoire. Keeping the contents of the grimoire secure, the Dark Lord Broodica sealed the book using a self-designed lock, similar to a holocron gatekeeper.