Merope, in Greek mythology, is one of the seven Pleiades,
daughters of Atlas and Pleione. Pleione, their mother, is the
daughter of Oceanus and Tethyus and is the protector of
sailors. There are several myths associated with the
Pleiades in Greek mythology...
3. A daughter of Atlas, one of the Pleiades, and the wife of
Sisyphus of Corinth, by whom she became the mother of Glaucus.
In the constellation of the Pleiades she is the seventh and
the least visible star, because she is ashamed of having had
intercourse with a mortal man. (Apollod. 1.9.3, 3.10. 1; Ov.
Fast. 4.175; Eustath. ad Hom. p. 1155; Serv. ad Virg. Georg.
1.138; comp. Hom. Il. 6.154; Schol. ad Pind. Nom. 2.16;
SISYPHUS.） - A Dictionary of Greek and Roman biography and
mythology, William Smith, Ed.