In 1670, René Potier's son, Léon Potier (who became Duke of Tresmes in 1669) changed the name of the title to "Duke of Gesvres".
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The Duke of Gesvres (Fr.: duc de Gesvres) was a title in the peerage of France from 1670 to 1794, named after Gesvres in northwestern France.
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The title of Baron of Gesvres first came to the Potier family with the marriage of Jacques Potier to Françoise Cueillette,daughter of Jean, seigneur de Freschines et de Gesvres.
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