LAMBERT (Madame), lived in Paris in 1840. She was then at a very pious age, "played the saint," and performed the duties of housekeeper for M. Picot, professor of mathematics, No. 9, rue du Val-de-Grace. In the service of this old philosopher she reaped enormous profits. Madame Lambert hypocritically took advantage of her apparent devotion to him. She sought Theodose de la Peyrade, and begged him to write a memorial to the Academy in her favor, for she longed to receive the reward offered by Montyon. At the same time she put into La Peyrade's keeping twenty-five thousand francs, which she had accumulated by her household thefts. On this occasion, Madame Lambert seems to have been the secret instrument of Corentin, the famous police-agent. [The Middle Classes.] LANGEAIS (Duc de), a refugee during the Restoration, who planned, at the time of the Terror, by correspondence with the Abbe de Marolles and the Marquis de Beauseant to help escape from Paris, where they were in hiding, two nuns, one of whom, Sister Agathe, was a Langeais. [An Episode Under the Terror.] In 1812 Langeais married Mademoiselle Antoinette de Navarreins, who was then eighteen years old. He allowed his wife every liberty, and, neither abandoning any of his habits, nor giving up any of his pleasures, he lived, indeed, apart from her. In 1818 Langeais commanded a division in the army and occupied a position at court. He died in 1823. [The Thirteen.] LANGEAIS (Duchesse Antoinette de),[*] wife of the preceding, daughter of the Duc de Navarreins; born in 1794; reared by the Princesse de Blamont-Chauvry, her aunt; grand-niece of the Vidame de Pamiers; niece of the Duc de Grandlieu by her marriage. Very beautiful and intelligent, Madame de Langeais reigned in Paris at the beginning of the Restoration. In 1819 her best friend was the Vicomtesse Claire de Beauseant, whom she wounded cruelly, for her own amusement, calling on her one morning for the express purpose of announcing the marriage of the Marquis d'Ajuda-Pinto. Of this pitiless proceeding she repented later, and asked pardon, moreover, of the foresaken woman. Soon afterwards the Duchesse de Langeais had the pleasure of captivating the Marquis de Montriveau, playing for him the role of Celimene and making him suffer greatly. He had his revenge, however, for, scorned in her turn, or believing herself scorned, she suddenly disappeared from Paris, after having scandalized the whole Saint-Germain community by remaining in her carriage for a long time in front of the Montriveau mansion. Some bare-footed Spanish Carmelites received her on their island in the Mediterranean, where she became Sister Therese. After prolonged searching Montriveau found her, and, in the presence of the mother-superior, had a conversation with her as she stood behind the grating. Finally he managed to carry her off--dead. In this bold venture the marquis was aided by eleven of The Thirteen, among them being Ronquerolles and Marsay.