She died. I was there when it happened. She was in a very bad way, frail and complaining of a burning in her chest. Valjean took her to the hospital, and that was where she was when I came to arrest him. I did not care that she saw, and I when told her the truth about her benefactor, about Valjean, she died from the mere shock of it.

( And that, perhaps, may be the most monstrous thing that he has done. The indifference in which he treated her condition, both at the police station and in the hospital, is unforgivable. Javert can still hear the accusation, the anger in which Valjean spoke to him about it afterward. )

Valjean sought out the woman's child, after he escaped from prison. He has been raising her all these years as far as I am aware, but that is all I know.