Megapenthes of Sparta was Iphiloche or Echemela. At the death of their father, Megapenthes and his brother or half-brother Nicostratus together seized the throne of Sparta and drove Helen out. They were depicted on the throne in Amyclae riding the same horse. Megapenthes of Sparta In Greek mythology, Megapenthes (; Ancient Greek: Μεγαπένθης "Megapénthēs"), a Spartan prince and son of Menelaus, who ruled after his father's death and sent his mother (or step-mother) Helen into exile. In some legends, Helen was his mother; in most, however, he was Menelaus's son by a concubine, Pieris or Tereis, and was born during the Trojan War.
Menelaus (son of Lagus) appointed by his brother to the chief command of the forces dispatched to Cyprus, where they were destined to co-operate with the fleet of Seleucus, and with Nicocreon, king of Salamis. By their combined efforts, they soon reduced all the cities of Cyprus to subjection, with the exception of Citium; and that also, it would appear, must have ultimately submitted. Menelaus now remained in the island, which he governed with almost absolute authority, the petty princes of the several cities being deposed, imprisoned, or assassinated on the slightest symptom of disaffection. He still held the chief command in 306 BC,