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In page Marie Jeanne Baptiste of Savoy-Nemours:

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In 1686 she sold the Duchy of Aumale[citation needed] to Louis Auguste de Bourbon, an illegitimate son of Louis XIV and Madame de Montespan. Aumale had been her personal property since 1659 at her father's death. Marie Jeanne Baptiste was also the last Countess of Geneva. The county was united with Savoy after her death.[4]