Lynceus was a king of Argos in Greek mythology, one of the fifty sons of Aegyptus. Aegyptus had a twin brother Danaus, who had fifty daughters collectively known as the Danaids. Aegyptus said that his sons should marry the Danaids, who fled with their father to Argos which was then ruled by Pelasgus. When Aegyptus and his sons arrived in Argos, Danaus agreed to give them his daughters in order to avoid a battle. However, he had instructed them to kill their husbands on their wedding night. All of them agreed; however, one of them, Hypermestra (or Hypermnestra), did not follow through, because her husband Lynceus had accepted her wish to remain a virgin. Danaus was furious with Hypermestra, but the goddess Aphrodite managed to save her from her father's wrath. Lynceus then killed Danaus as revenge for his brothers' death.
See Also: The Danaids, Aphrodite