The Dune Encyclopedia
This article or section refers to elements that appear exclusively in The Dune Encyclopedia.
Count Demetrios IX Atreides lived during Feyd I usurpation. He was the father of Pausanias Atreides.
Along with Paulos II Atreides he tried to organize a resistance to his rule and Feyd branded them as traitors. They were joined by rebel Sardaukar.
Feyd's homeworld, Ibleam III, was hastily attacked by the rebels but the revolution was crushed by the Imperial Fleet reserves. Demetrios died with his son and their resistance sparked the Civil War.