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.
History of Sparta inducements served mainly as encouragement to those who were already resentful of Sparta. In the event, it was Sparta who made the first aggressive move using, as a pretext, Boeotia's support for her ally Locris against Sparta's ally Phocis. An army under Lysander and Pausanias was despatched. As Pausanias was somewhat lukewarm to the whole enterprise, Lysander went on ahead. Having detached Orchomenos from the Boeotian League, Lysander was killed at the Battle of Haliartus. When Pausanias arrived rather than avenge the defeat he simply sought a truce to bury the bodies. For this Pausanias was prosecuted, this time successfully