Oedipus at Colonus is the second play (chronologically) in Sophocles' Theban trilogy, following Oedipus Rex and preceding Antigone. It was written near the end of Sophocles' life and first performed posthumously in 401 BCE. The play continues the tragic story of Oedipus, now an old, blind, and exiled man, as he seeks a final resting place in the sacred grove of Colonus, near Athens.
After years of wandering, Oedipus arrives at Colonus, accompanied by his devoted daughter Antigone. The area is sacred to the Furies (Erinyes), and the local citizens, led by King Theseus of Athens, initially hesitate to allow Oedipus to stay. However, when they learn of a prophecy stating that Oedipus' burial site will bring great protection to the land, Theseus grants him asylum.
Oedipus' son, Polynices, comes to beg for his father's blessing in an impending war against Thebes, but Oedipus, furious at his sons for their past betrayal, refuses to support him. Instead, he curses both sons, foretelling that they will die by each other's hands in their struggle for the throne.
As his end approaches, Oedipus withdraws into the sacred grove, where he mysteriously dies-his body disappearing, suggesting a divine transformation. Theseus alone is permitted to witness this event, and Oedipus becomes a sort of protective spirit for Athens.
