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.
Mentes (King of the Taphians) at Pylos and King Menelaus of Sparta, to make inquiries as to the whereabouts of his father. Upon his return, but he should kill the suitors, either by stealth or publicly. Although Mentes had hardly any appearances in Greek myths of earlier antiquity, he became a symbol of a guardian and a mentor. Later, his name got a derogatory flavor and became a symbol of a sinister messenger. He is not to be confused with Mentor, the elderly friend of Odysseus in whose care Telemachus was placed during the Trojan War. To add to the possible confusion, Athena also takes