Louise Françoise de Bourbon, Légitimée de France (1 June 1673 – 16 June 1743) was the eldest surviving legitimised daughter of Louis XIV of France and his maîtresse-en-titre, Madame de Montespan. She was said to have been named after her godmother, Louise de La Vallière, the woman that her mother had replaced as the king's mistress. Prior to her marriage, she was known at court as Mademoiselle de Nantes.
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