Elrood VIII was a descendant of Elrood VII, claiming to belong to the main line of the Corrinos. In 8705 AG he made a revolt against the ruling line, the House of Tiiopa'it Corrino, supported by the House Atreides, although they were in rivalry to the throne since the time of Sidir XVII, thus redeeming themselves. When he was enthroned, he restored the dignities of the Atreides and further awarded the Dukedom of Caladan to Paulos XVI Atreides in 8711 AG.