Siona Atreides

Siona Ibn Fuad al-Seyefa Atreides, known as Siona Atreides, was the daughter of Moneo, the attendant and confidant of God Emperor Leto II, and a direct descendant of Leto's twin sister Ghanima and Farad'n Corrino. She led a group of dissidents opposed to Leto's tyrannical rule, and after surviving an attack by his D-wolves, was forced into the all-female Fish Speakers. Leto revealed that Siona was the product of a breeding scheme to create a human invisible to prescient vision, freeing humanity from domination by oracles.