Mme. de Pompadour made a thorough study of the politics of Europe in relation to the affairs of the nation—a proceeding in which she was aided by her extraordinary intelligence, acute perception of difficulties and conditions, domestic and foreign; by the exercise of these qualities, she put herself in touch with the politics of France, always consulting the best of minds and winning many friends among them. In 1749 she succeeded in ridding herself of her pronounced enemy, Maurepas, minister and confidential adviser of the king, and subsequently began her reign as absolute mistress and governor of France.

Her life then became one of constant labor, which gradually undermined her health. Appreciating the mental indolence of Louis, she would place before him a clear and succinct résumé of all important questions of state affairs, which she, better than any other, knew how to present without wearying him. Realizing that her power depended upon her influence over the king, and that she was surrounded by men and women who were simply waiting for a favorable opportunity to cause her downfall, she was constantly on the defensive. She considered it "the business of her life to make her yoke so easy and pleasant, and from habit so necessary to him, that an effort to shake it off would be an effort that would cause him real pain." Her happiest hours—for she did not love the king—were those spent with her brother, the Marquis de Marigny, in the midst of artists, musicians, and men of letters.

As for the queen, she was in the background, absolutely. "All the prerogatives of a princess of a sovereign house were, at this time, about 1750, conferred by the king upon Mme. de Pompadour, and all the pomp and parade then deemed indispensable to rank so exalted were fully assumed by her." At the opera, she had her loge with the king, her tribune at the chapel of Versailles where she heard mass, her servants were of the nobility, her carriage had the ducal arms, her etiquette was that of Mme. de Montespan, Her father was ennobled to De Marigny, her brother to be Marquis de Vandières. The marriage of her daughter to a son of the king and his former mistress was planned, then with a son of Richelieu, then with others of the nobility; fortunately, the girl died.

Mme. de Pompadour gradually amassed a royal fortune, buying the magnificent estate of Crécy for six hundred and fifty thousand livres; "La Celle," near Versailles, for twenty-six thousand livres; the Hôtel d'Evreaux, at Paris, for seventy-five thousand livres—and these were her minor expenses; her paintings, sculpture, china, pottery, etc., cost France over thirty-six million livres. Her imagination in art and inventions was wonderful; she retouched and decorated the château in which she was received by the king; she made "Choisy"—the king's property—her own, as it were, by all the embellishments she ordered and the expenditures which her lover lavished upon it at her request. All the luxuries of the life at "Choisy," all the refinements even to the smallest detail, had their origin in her inventions. It was she who planned the fairy château with its wonderful furniture, her own invention.

At that time, her whole life was spent in adding variety to the life of the king and in distracting the ennui which pursued him. In her retreats she affected the simplicity of country life; the gardens contained sheepfolds and were free from the pomp of the conventional French gardens; there were cradles of myrtle and jasmine, rosebushes, rustic hiding places, statues of Cupid, and fields of jonquils filled the air with the most intoxicating perfume. There she amused her sovereign by appearing in various characters and acting the parts—now a royal personage, now a gardener's maid.

However, in spite of all cunning study of the sensuous nature of the king, in spite of this perpetual enchantment of his senses, this favorite was obliged to fight for her power every minute of her existence. If hers were a conquest, it was a laborious one, held only through ceaseless activity; continual brainwork, all the countermoves and manœuvres of the courtesan, were required to keep Mme. de Pompadour seated in this position, which was surrounded by snares and dangers.

To possess the time of the king, occupy his enemies, soothe his fatigue, arouse his wearied body condemned to a milk diet, to preserve her beauty—all these were the least of her tasks. She must be ever watchful, see evil in every smile, danger in every success, divine secret plots, be on guard to resist the court, the royal family, the ministry. For her there was no moment of repose: even during the effusions of love she must act the spy upon the king, and, with presence of mind and calmness, must seek in the deceitful face of the man the secrets of the master.

Every morning witnessed the opening of a new comedy: a gay smile, a tranquil brow, a light song, must ever disguise the mind's preoccupation and all the machinations of her fertile brain. At one time the Comte d'Argenson, desiring to succeed Fleury as minister, almost arrived at supplanting Mme. de Pompadour by young Mme. de Choiseul, who, having charmed the king on one occasion, obtained from him a promise that he would make her his mistress—which would necessitate desertion of Mme. de Pompadour; but, by the natural charms of which age had not robbed her and by bringing all her past experience into play, Mme. de Pompadour once more scored a triumph and remained the actual minister to the king. All this nervous strain was gradually killing her, and, to overcome her physical weakness, her weary senses, her frigid disposition, she resorted to artificial stimulants to keep her blood at the boiling point and enable her to satisfy the phlegmatic king.

Undoubtedly the most disgraceful act of this all-powerful woman was the maintaining of a house of pleasure for the king, to which establishment she allured some of the most beautiful girls of the nobility, as well as of the bourgeoisie. These young women supposed that they were being supported by a wealthy nobleman; their children were given a pension of from three thousand to twelve thousand livres, and the mother received one hundred thousand francs and was sent to the provinces to marry; a father and mother were easily bought for the child. Thus was this clandestine trade carried on by those two—the king satisfying his utter depravity, and Mme. de Pompadour making herself all the more secure against a possible rival.