Who is Antigone (from The Phoenician Women) from Euripides V and what is their importance?

Antigone is the daughter of Jocasta and Oedipus. When her brother, Polyneices, goes onto exile, she misses him greatly. When he returns to Thebes with an army, she goes up on the roof of the palace to see the armies.

Antigone and her mother attempt to stop Polyneices and Eteocles from fighting each other, but they arrive too late. She hears that her brother's last wish was to be buried in Thebes, and she brings her brothers' and her mother's bodies back to the city. When she arrives, however, she learns that Creon has condemned Oedipus to exile from the city and decreed that no one shall bury Polyneices under penalty of death.

Convinced that Creon's ruling is unjust, Antigone argues that Polyneices' body should be buried, so that he is not punished in death as he was punished in life. Creon refuses her pleas. As a result, Antigone says that she will bury her brother even if she dies for it, and she says that she would kill Creon's son if she were forced to marry him. Antigone later accompanies her father into exile.