structural:expansion, linguistic:paraphrasing
Descendants

Perseus and Andromeda had seven sons: Perses, Alcaeus, Heleus, Mestor, Sthenelus, Electryon, and Cynurus, and two daughters, Gorgophone and Autochthe. Perses was left in Aethiopia and was believed to have been an ancestor of the Persians. The other descendants ruled Mycenae from Electryon to Eurystheus, after whom Atreus got the kingdom. However, the Perseids included the great hero, Heracles, stepson of Amphitryon, son of Alcaeus. The Heraclides, or descendants of Heracles, successfully contested the rule of the Atreids.

A statement by the Athenian orator Isocrates helps to date Perseus approximately. He said that Heracles was four generations later than Perseus, which corresponds to the legendary succession: Perseus, Electryon, Alcmena, and Heracles, who was a contemporary of Eurystheus. Atreus was one generation later, a total of five generations.