Lysippe was the daughter of Proëtus and Stheneboea. She was cured of her madness by Melampus and married him, bearing him Abas, Mantius and Antiphater. Her name means 'horse releaser', which could be taken to be a 'powerful' name (for one who has power over horses), or else a 'chaotic' name (for one who loses control). If the latter, this could be a reference to Lysippe's madness. The two halves of her name are luo, 'to release' and hippos, 'horse', 'mare'.