Two other well-known women also contrived to attract the Grand Condé, and with them he contracted a lifelong friendship. These were Louise Marie de Gonzague of Cleves, afterwards Queen of Poland, and her sister Anne, known as the Princess Palatine on account of her marriage with the son of the Elector Frederic V. Their portraits, by Dumoustier, can be seen at Chantilly. These Princesses de Gonzague, before their marriages, lived at Paris. Princesse Louise Marie held her Court at the Hôtel Nevers, a majestic building between the Tours de Nesle and the Pont Neuf, which afterwards became the Hôtel Conti, and is now the Palais de Monnaie. The two sisters were in their time leaders of Parisian society and played an important part amongst the women of the Fronde. A letter, one of the last that Prince Henri II de Condé wrote to his son, refers to the neglect with which he treated his wife, and blames him severely for not writing to her upon the occasion of the sudden death of her only brother. It runs thus: "_Mon fils, Dieu vous bénisse. Guérissez vous, ou il vaut mieux vous poignarder vous même, que de faire la vie que vous faites; je rien sais ni cause ni raison, et je prie Dieu de me consoler; je vous écris au désespoir, et suis Monsieur votre bon père et ami._" Soon afterwards the old Prince de Condé died and his last words and wishes were for the Duc and Duchesse d'Enghien. He, who had always held so high the honour of his own wife, had been a great support to Claire-Clemence in her trials. The title of Prince de Condé devolved at his father's death upon the Grand Condé, whilst the little Duc d'Albret bore henceforth the title of Duc d'Enghien, rendered so celebrated by the victor of Rocroy. But the Grand Condé did not stop here. In that same year (1648) he again won the great battle of Lens against the Austrians. In that battle it was said that he charged twelve times in one hour, took eight flags and thirty-eight cannon, and made 5,000 prisoners. The Emperor Ferdinand III, after this, felt his powers of resistance at an end and decided at last to agree to the Peace of Westphalia, which was signed at Münster, and brought to an end the famous Thirty Years' War. By it France acquired the whole of Alsace except Strasbourg and Philipsbourg. Liberty of conscience, inaugurated by Henri IV, was also recognised throughout the rest of the world, and perfect equality of rights was enjoined between Roman Catholic and Protestant.