Asopis was one of the daughters of Thespius, King of Thespiae, Boeotia. She was one of the forty-nine of his fifty daughters to sleep with Heracles while he was in Thespiae. She would carry his son Mentor.
Spouse & Lovers
Herakles (lover for one night)
"by Asopis he [Herakles] had Mentor" - Apollod. Biblioteca 2.7.8