 The first Heraclid king was Agron, the great-grandson of Alcaeus.He was succeeded by 19 Heraclid kings, names unknown, all succeeding father to son.In the 8th century BC, Meles became the 21st and penultimate Heraclid king and the last was his son Candaules (died c. 687 BC), who was assassinated and succeeded by his former friend Gyges, who began the Mermnad dynasty.