JOCASTA, or Iocasta ('IoKaarn; in Homer, 'E7rLKao-rn), in Greek legend, wife of Laius, mother (afterwards wife) of Oedipus, daughter of Menoeceus, sister (or daughter) of Creon.
" the swollen-footed") 1 in Greek legend, son of Laius, king of Thebes, and Jocasta (Iocaste).
Laius, having been warned by an oracle that he would be killed by his son, ordered him to be exposed, with his feet pierced, immediately after his birth.
Thus Oedipus grew up ignorant of his parentage, and, meeting Laius in a narrow way, quarrelled with him and slew him.
Sophocles describes in his Oedipus Tyrannus how Oedipus was resolved to pursue to the end the mystery of the death of Laius, and thus unravelled the dark tale, and in horror put out his own eyes.
Five main cycles of story may be distinguished: (1) the foundation of the citadel Cadmea by Cadmus, and the growth of the Sparti or "Sown Men" (probably an aetiological myth designed to explain the origin of the Theban nobility which bore that name in historical times); (2) the building of a "seven-gated" wall by Amphion, and the cognate stories of Zethus, Antiope and Dirce; (3) the tale of the "house of Laius," culminating in the adventures of Oedipus and the wars of the "Seven" and the Epigoni; (4) the advent of Dionysus; and (5) the exploits of Heracles.