In 1731, he married his cousin, Louise Diane d'Orléans, Mademoiselle de Chartres, the youngest daughter of Philippe d'Orléans, the Régent of France during the minority of King Louis XV of France, and his wife Françoise-Marie de Bourbon, Mademoiselle de Blois (daughter of Madame de Montespan).
His marriage was organised by his mother the Dowager Princess of Conti and future mother in law the Dowager Duchess of Orléans.