Who is Hermione

In Greek mythology, Andromache was the wife of Hector, a Prince of Troy and leader of the Trojan Army during the Trojan War. In the war, Hector was killed by the famed Greek hero Achilles in a fight. When the city of Troy fell, Hector and Andromache's young son Astyanax was killed, and Achilles's son Neoptolemus took Andromache to be his slave and concubine. Euripides's play Andromache begins at a point where Andromache has already been Neoptolemus's concubine for years.
Hermione is the wife of Neoptolemus, as well as the daughter of King Menelaus and Helen, the woman who sparked the beginning the Trojan War. In her years as a concubine, Andromache has a son with Neoptolemus, named Molossus. Hermione is unable to have children, and believes that Andromache is using a "secret enchantment" to stop her from having children and make Neoptolemus hate her. Thus, the main conflict in Andromache stems from Hermione's jealous hatred of Andromache and her son, thinking that Andromache is trying to take her place.