Andromeda follows her husband to his native island of Serifos, where he rescues his mother Danaë. They next go to Argos, where Perseus is the rightful heir to the throne. After accidentally killing Argos' king, his grandfather Acrisius, however, Perseus chooses to become king of neighboring Tiryns instead. Perseus and Andromeda have seven sons: Perses (who, according to folk etymology, is the ancestor of the Persians), Alcaeus, Heleus, Mestor, Sthenelus, Electryon, and Cynurus as well as two daughters, Autochthe and Gorgophone. Their descendants rule Mycenae from Electryon down to Eurystheus, after whom Atreus attains the kingdom. The great hero Heracles (Hercules in Roman mythology) is also a descendant, his mother Alcmene being Electryon's daughter, while (like his grandfather Perseus) his father is the god Zeus.