Oedipus was a mythical Greek king of Thebes. A tragic hero in Greek mythology, Oedipus fulfilled a prophecy that said he would kill his father and marry his mother, and thereby brought disaster on his city and family. The story of Oedipus is the subject of Sophocles's tragedy Oedipus the King, which was followed by Oedipus at Colonus and then Antigone. Together, these plays make up Sophocles's three Theban plays contained herein. Oedipus represents two enduring themes of Greek myth and drama: the flawed nature of humanity and an individual's powerlessness against the course of destiny in a harsh universe. Sophocles (circa 497 BC - 406 BC) is one of three ancient Greek tragedians whose plays have survived. His first plays were written later than those of Aeschylus, and earlier than or contemporary with those of Euripides. According to the Suda, a 10th century encyclopedia, Sophocles wrote 123 plays during the course of his life, but only seven have survived in a complete form: Ajax, Antigone, The Women of Trachis, Oedipus the King, Electra, Philoctetes and Oedipus at Colonus.