Not sure if it's inconvenient or not, but The Star Chamber, mostly known for being a clandestine, secret, and totalitarian body, did not actually start out that way. It started out in the 12th and 13th centuries (when baronial and feudal wars were common) as a judicial body that had the authority to hold in check the aristocracy, or feudal lords. Lower courts simply were not able to muster the authority to deal with the aristocracy. So, a court needed to be created that had that power. It started out as the "King's Bench" and in 1487, under Henry VII Tudor, it was expanded and under James I and Charles I it became an outright tool of arbitrary oppression. The Star Chamber was formally abolished in the middle 17th century.
What it
became sounds like something that would fit well in the Tudor dynasty.
