As soon as the first signs of the Fronde broke out, Mme. de Chevreuse became active and succeeded in attracting to her the young Marquis de Laigues with whom, later on, she contracted a mariage de conscience. As ambassador of the Fronde, she prevailed upon Spain to promise troops and subsidies to her party. After the peace of 1649, she went to Paris where she found almost all her friends ready to follow her and to pay her homage. It was she who conceived the idea of an aristocratic league which, under the auspices of the two great princes of the blood, the Duke of Orléans and the Prince of Condé, would unite the best part of the nobility.

Her plan was to marry her daughter to the Prince de Conti and the young Duc d'Enghien to one of the daughters of the Duke of Orléans. The contracts were signed and all was in readiness when Mazarin was exiled, and the following Frondists came into power: the Duke of Orléans at court, Condé and Turenne at the head of the army, Châteauneuf in the Cabinet, Molé in Parliament, while Mme. de Chevreuse and Mme. de Longueville managed to keep harmony among all. Queen Anne in a short time annulled the marriage contracts; and on the return of Mazarin, Mme. de Chevreuse took up her work with him, the cardinal being wise enough to appreciate the fact that she was a greater force with than against him.

Strange as it may seem, Mme. de Chevreuse in time became the great acting and controlling force of royalty, winning over the Duke of Lorraine and becoming a staunch friend to both the regent and the cardinal; after the death of the latter, she became all-powerful, and it may be said that she made Colbert what he was. In the fulness of her power, she gradually retired, having seen, in turn, the passing away or the fall of Richelieu, Mazarin, Louis XIII., Anne of Austria, the Queen of England, Châteauneuf, the Duke of Lorraine, her daughter, and the Marquis de Laigues. She ceased plotting, renounced politics and intrigues, and retired to the country, where she died in 1679.

Mme. de Chevreuse was undoubtedly one of the most important political characters of the seventeenth century, just as she was also one of its greatest beauties—possibly the most seductive and charming woman of her epoch. A consummate diplomat and an untiring worker, she was at the head of more intrigues and plots, had more thrilling adventures, controlled and ruined more men, than any other woman of her century, if not of all French history. Thinking little of religion, she was yet in the very midst of the Catholic party; unswerving in her friendships, she scorned danger, opinion, fortune, for those whom she loved or whose cause she espoused; an implacable foe, she was the most dreaded enemy of both Richelieu and Mazarin.

With a remarkable ability for grasping the details of an antagonist's position she combined all the other qualities of an astute politician; thus, upon the desired consummation of her plots she brought to bear a sagacity, finesse, and energy that baffled all her adversaries. With her, politics became a passion and a necessity; even while in exile, her zeal was unflagging and she intrigued over all Europe. Scorning peril as well as all petty restraints, and characterized by courage, loyalty, and devotion, she was without an equal among the members of her sex.

Mme. de Hautefort, while less powerful than Mme. de Chevreuse and of quite a different type, is associated with her in the history of the time. Pure, beautiful, and virtuous, she everywhere inspired love and respect; without political aspirations and seeking neither power nor favors, she refused to deliver her soul or betray her friends for Richelieu or Mazarin; she was their enemy, but not their rival.

Because of her desire to serve the queen, of whom she was an intimate friend, and to further her interests, she was connected with the first intrigues of Mme. de Chevreuse, but as an innocent and disinterested party. Louis XIII. conceived an ardent attachment for her, and Richelieu endeavored to win her over to his policies, but she remained faithful to her queen and refused to sacrifice her honor to the king.

The cardinal did not rest until he had prevailed upon the king to exile her, ostensibly for only fifteen days; and as her unselfishness and generosity had made an impression upon the whole court, her departure was much regretted, though no demonstration was made. When, after the king's death, Mme. de Hautefort returned to Paris, she soon reëstablished herself in the affection, admiration, and respect of her associates.

As Mazarin gained ascendency over Queen Anne, that regent changed her policy and abandoned her former friends. Mme. de Hautefort was opposed to the queen on account of her liaison with her minister and her lack of fidelity to those who, in time of trouble, had served her so well. As dame d'atours, she was forced either to close her eyes to all scenes between the cardinal and Anne or to combat the regent and resign. She was not to be tempted by the honors and favors with which the two sought to purchase her criminal connivance or her silence; preferring poverty and exile to a guilty conscience, she soon retired to the convent of the Daughters of Sainte-Marie, where she was followed by her admirers, who were willing to place themselves and their fortunes at her disposal. At the age of thirty she accepted the hand of the Duke of Schomberg, and, away from the court and its intrigues, lived in peace.

Indifferent to the powerful, but kind and compassionate to the poor and oppressed, Mme. de Hautefort is a type of those great women of the seventeenth century who stood for honor, courage, generosity, sympathy, and virtue; fervently, even austerely, religious, she was yet far removed from anything resembling bigotry. Among the ladies of the Hôtel de Rambouillet, she was one of the most popular; her vivacity, modesty, and reserve, combined with a tall figure, imposing bearing, and large, expressive blue eyes, won the hearts of many cavaliers, among whom the most prominent were the Dukes of Lorraine and La Rochefoucauld.