By the time of The Sims 2, she suffered an untimely death as an adult. Unlike most pre-made Sims that are deceased in Veronaville, she has personality points and memories. She and her husband both died before her son married Contessa Capp.
According to Consort's memories, Andromache had died before Consort got married to Contessa. Her being alive in Roaring Heights caused a retroactive continuity. This is likely an oversight by the developers.
Oddly, while Andromache is resurrectable, her husband is not. Usually, deceased married couples have the same status of resurrectability. Often going unnoticed, Andromache had brown hair, a dominant trait, while both of her parents had a recessive hair color. According to Andromache's age data, she had 29 days left in the adult stage when she died. Oddly, her father-in-law Priam has a memory of her birth. This is most likely a mistake by the developers.
In Greek mythology, Andromache was the wife of Hector, son to the King of Troy. She appeared as a character in Shakespeare's Troilus and Cressida.