Rekur Van was a Tleilaxu genetic scientist and slaver who lived during the Butlerian Jihad. During a raid near IV Anbus (one of his best slave-harvesting grounds) he noticed the presence of a machine scout fleet. He reported it to his colleague, Iblis Ginjo, and the Grand Patriarch used this information for defending the planet. After the successful Battle of IV Anbus, Serena Butler promised the injured replacement organs and limbs, despite the general shortage.