The Marquis Florent-Claude du Chastellet and Émilie du Châtelet had three children: Françoise Gabriel Pauline (born 30 June 1726), Louis Marie Florent (born 20 November 1727), and Victor-Esprit (born 11 April 1733).
Louis Marie Florent de Lomont d'Haraucourt, duke of Châtelet (20 November 1727, Semur-en-Auxois, Côte-d'Or - 13 December 1793, Paris), was a French army officer, nobleman and diplomat.
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