Grand Inquisitor, also known as Master of the Inquisitorius, was a title used by the highest-ranking Inquisitor of the Galactic Empire. The Pau’an male and former Jedi Temple Guard known only as the Grand Inquisitor, and sometimes the Inquisitor, held this title, and was ranked above other Inquisitors such as the Fifth Brother, the Sixth Brother, the Seventh Sister, the Eighth Brother, and the Ninth Sister. As Grand Inquisitor, he reported to Darth Vader, a Dark Lord of the Sith, and hunted Jedi who had survived the Great Jedi Purge.