Estes Atreides [b. 173 BG] one of the twin sons of Vorian Atreides and Leronica Tergiet. Estes was taller and more flamboyant compared to his brother Kagin. He and his brother were grown by their foster father, Kalem Vazz on Caladan, until he was killed by elecrans when they were young. Vorian tried to return to Leronica and meet the boys better but did not want to spoil their memories by revealing he was their true father, a fact the teen boys discovered it by accident; they were shocked since they preferred the memories with Vazz.