| This article or section refers to elements from The Dune Encyclopedia |
Baron Ioannes Atreides lived during Feyd I's usurpation. He belonged to the House Atreides Pelops (perhaps descedant of Theseus Atreides). He was the father of Konstantinos Atreides.
When Paulos II Atreides and Demetrios IX Atreides tried to organize a resistance against Feyd and branded as traitors, Ioannes was executed for high treason.
