Descripción del sitio
Herakles' ninth labour was to obtain the girdle, at the request of Admete, Eurystheus' daughter. In one version of the story, Hippolyte fell in love with Heracles and freely gave him the belt. According to another the girdle is obtained by Herakles kidnapping Hippolyte's sister, Melanippe, and demanding the girdle as the ransom, succeeding and thus releasing the sister.
http://en.wikipedia.org/wiki/Hippolyte