This is a confusing question. The play by Sophocles, Antigone, is about the Antigone, who defies the order of Creon not to bury her deceased brother, Polynices. This action can be seen as an act of hubris, because of several factors.
First, Antigone is a noble born woman. This is an important point, because a tragic hero by Greek standards must be noble born. She is the daughter of Oedipus the king. As you can see, this work is part of the Theban trilogy.
Second, it is Antigone's noble desire to bury her brother who was slain in battle that leads her into trouble. Within this context, there was a civil war in the family, as the two brothers fought each other. In the end both died, but Creon did not allow Polynices to be buried, because he invaded. However, this was a great dilemma, because it was a taboo not to bury someone.
So, Antigone risked her own life to bury her brother. In the end, Creon had a change of mind. However, it was too late.
In light of all this, the play is appropriately named after the main character and the tragic hero of the work.