I guess if someone of a lesser rank married her, their son might still become a count, depending on the kingdom's laws, so there is that. It might seem like a good deal to a wealthy merchant family. For another noble family, it might not be so attractive since she'd bring no wealth of her own, with even the mansion gone. A wealthy merchant wouldn't care about her lack of wealth, but her infamy could be troublesome, so anyone planning to have her marry their son should be careful, logically.