Who are Estella’s parents?

At the end of the novel, Pip discovers that Estella is the daughter of Magwitch and Molly, a woman who now works as Jagger’s servant after being convicted of murder. This discovery is important because Estella is elegant, refined, and beautiful, and on the basis of this impression, Pip has always assumed that she must come from a high-class background. In fact, Estella’s origins are even lower than Pip’s own.