In Greek mythology, Megapenthes (/ˌmɛɡəˈpɛnˌθiːz/; Ancient Greek: Μεγαπένθης Megapénthēs means "great sorrow") was a king of Argos.
Megapenthes was the son and successor of Proetus[1] and father of either Argeus[2] or Anaxagoras (in some accounts, Anaxagoras was his grandson through Argeus).
He also had a daughter Iphianeira, who married Melampus.
[3] Megapenthes exchanged kingdoms (Argos for Tiryns) with his cousin Perseus[4] whom he killed much later.
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