Delphic Sibyl

The Delphic Sibyl was a legendary figure who made prophecies in the sacred precinct of Apollo at Delphi, located on the slopes of Mount Parnassus. According to a late source, her mother was Lamia, daughter of Poseidon[1]. The Delphic Sibyl was not involved in the operation of the Delphic Oracle and should be considered distinct from the Pythia, the priestess of Apollo.
See more at Wikipedia.org...