If you’re going to name your daughter after a Les Misérables character Cosette is the way to go. She’s the only girl that lived through the play... I’m not crying...
There is an anime that is called Le Portrait De Petite Cossette, this name always makes me think of that. I can picture her, a tragic little girl with sad eyes whose beauty is outstanding.
There is an anime and a manga series that consists of two volumes called "Le Portrait de Petite Cosette." Cosette is the ghost of a girl who was murdered a long time ago who enlists the help of Eiri (the obvious hero) to collect items that used to belong to her. The only catch is, the items are cursed and they cause misfortune to fall upon all who touch, or even see them. It's a very dark and bloody series.