In love, Madame de Montbazon was very mercenary; we say it once for all, and beg to be excused from citing proof of the assertion. In politics, she also surrendered herself very willingly to any representation the eloquence of which was aided by crowns or pistoles. It was thus that in the month of August, 1649, she promised that the Duke de Beaufort should not oppose the return of the Court, at the same moment that she opened her hand to receive a considerable sum. It was thus that, the same year, she accepted two thousand pistoles from the Spanish envoys, who, desirous of rendering her favourable, promised besides that the sum of twenty thousand crowns and a pension of six thousand livres if she would secure to them the concurrence of the Duke de Beaufort. But she did not always meet with debtors so honest as Mazarin and the Spanish ambassadors. In 1650, whilst the treaty was preparing which sought to unite the Frondeurs with the Princes, then prisoners at Havre, a negotiation was entered into with Madame de Montbazon in which the Prince de Conti was offered to her as a husband for her daughter. The proposition was not accepted. The proposers were not discouraged, and a sum of a hundred thousand crowns was offered to her. This time the Duchess could not resist, and the treaty was signed in all due form. Unfortunately, when the Princes were liberated, she was imprudent enough to confide her voucher to the Princess Palatine, who, with perfidious haste, had promised to take care of her interests. She never saw the precious contract again, and the Prince de Conde only answered her demands by cruel and cutting jeers. In that adventure, it was not Madame de Montbazon who played the shabbiest part.