Raymond Ritter (French article) in Une dame de chevalerie, Corisande d'Andoins, comtesse de Guiche (A lady of chivalry, Corisande of Andoins, Countess of Guiche) (1959) shows that this was her son by Philibert, and her affair with the king was childless. Diane's sister-in-law, Catherine, Countess of Lauzun, was the grandmother of the first Duke of Lauzun, the secret husband of la Grande Mademoiselle.
