Everything About Fiction You Never Wanted to Know.

The last[1] of the Theban trilogy of plays by Sophocles (preceded by Oedipus the King and Oedipus at Colonus), Antigone follows the fate of the daughter of Oedipus.

The conflict between Polynices and Eteocles was chronicled in the play The Progeny; sadly, only a single exchange survives of that play. It can be read here.

Tropes used in Antigone include:
  1. story-wise; it was the first one written