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.

Millennia later, a Bene Gesserit Council on Wallach IX filed formal protest against House Corrino in assassination of Leto Atreides II.

Centuries after the Fall of the God Emperor, during the onslaught of the Honored Matres, Wallach IX is attacked by forces from the Scattering, and either subjugated or completely destroyed (according to a report received by the Great Honored Matre Dama).


Community content is available under CC-BY-SA unless otherwise noted.