Jocasta is a significant figure in Greek mythology, known as the mother and wife of Oedipus. She plays a crucial role in the tragic tale of Oedipus, who unknowingly fulfills a prophecy that he would kill his father and marry his mother. Jocasta's story is one of fate, family, and the devastating consequences of ignorance. In the myth, Jocasta initially tries to defy the prophecy by abandoning her son, but fate ultimately leads her back to Oedipus. Her tragic end, marked by despair and realization, highlights the themes of destiny and the inescapable nature of truth in Greek tragedies.