A planet situated in the Laoujin system, Wallach IX was a Synchronized World during the ancient times. When Yorek Thurr abandoned the League of Nobles, he was appointed its ruler.
When the planet was to be obliterated during the Great Purge, Thurr abandoned the planet and retreated to Corrin. The Titans had settled the deserted planet, while Porce Bludd with Quentin Butler scouted it for survivors. It was there that Quentin Butler was apprehended by cymeks.
In the next millennia, it served as the main planet for the Bene Gesserit Sisterhood. Their Mother School was located there as were extensive training facilities. The planet was surrounded by a defensive shield which was impenetrable. Almost all sisters underwent training at this planet when situation allowed.
A Mentat Duncan Idaho ghola visited Wallach IX during the time of God Emperor Leto Atreides II's reign to suppress a Mentat school the Sisterhood had thought they had hidden there.
Astrography
Wallach IX was said to be located "near" Hessra.
Appearances
- Dune (Mentioned only)
- Chapterhouse: Dune (Mentioned only)
- Dune: The Battle of Corrin
- Dune: House Atreides