The majordomo was the title given to the God-Emperor's aide and confidant. A majordomo is a head servant, usually responsible for coordinating the household of their master/employer, their schedule, and/or their finances. The position has strong similarities with a butler or a chief of staff, and the terms are sometimes used interchangeably.
Known Majordomos[]
Moneo Atreides - final majordomo to Leto II
Ikonicre - held the position in 12335 AG; spread the rumor of the Burning of the Nine Historians