Éponine is a fictional character from the novel Les Misérables by Victor Hugo. She is the daughter of the innkeepers Thenardier and is known for her unrequited love for Marius Pontmercy. Éponine's character embodies themes of sacrifice and loyalty, as she helps Marius despite her own feelings. In the story, Éponine is portrayed as a street-smart young woman who struggles with poverty. Her life is marked by hardship, yet she displays courage and resilience. Éponine's tragic fate highlights the social injustices of 19th-century France, making her a poignant figure in the narrative.