It was Mme. de Pompadour who founded, supported, and encouraged a national china factory; the French owe Sèvres to her, for its artists were complimented and inspired by her inveterate zeal, her persistency, her courage, and were assisted by her money. She brought it into favor, established exhibits, sold and eulogized the ware herself, until it became a favorite. Also, through her management and zeal the Military School was founded.

The disasters of the Seven Years' War are all charged to Mme. de Pompadour. The motive which caused her to decide in favor of an alliance with Austria against Frederick the Great was a personal desire for revenge; the latter monarch had dubbed her "Cotillon IV," and had rather scorned her, refusing to have anything to do with a Mlle. de Poisson, "especially as she is arrogant and lacks the respect due to crowned heads." The flattering propositions of the Austrian ambassador, Kaunitz, who treated with her in person and won her over, did much to set her against Germany, and induced her to influence Louis XV. to accept her view of the situation—a scheme in which she was victorious over all the ministers; the result was the Austrian alliance. The letter of Kaunitz to her, in 1756, will illustrate her position:

"Everything done, Madame, between the two courts, is absolutely due to your zeal and wisdom. I feel it and cannot refuse myself the satisfaction of telling you and of thanking you for having been my guide up to the present time. I must not even keep you ignorant of the fact that their Imperial Majesties give you the full justice due you and have for you all the sentiments you can desire. What has been done must merit, it seems to me, the approbation of the impartial public and of posterity. But what remains to be done is too great and too worthy of you for you to give up the task of contributing and to leave imperfect a work which cannot fail to make you forever dear to your country. I am, therefore, persuaded that you will continue your attention to an object so important. In this case, I look upon success as certain and I already share, in advance, the glory and satisfaction which must come to you, no one being able to be more sincerely and respectfully attached to you than is your very humble and obedient servant, the Count de Kaunitz-Rietberg."

She received her first check when, Damiens having attempted to assassinate the king, the dauphin was regent for eleven days. She was confined to her room and heard nothing from the king, who was in the hands of the clergy. Among the friends who abandoned her was her protégé Machault, the guard of the seals, who conspired with D'Argenson to deprive her of her power and went so far as to order her departure. After the king's recovery, both D'Argenson and Machault were dismissed and Mme. de Pompadour became more powerful than before.

Her influence and usurpation of power bore heavily upon every department of state; she appointed all the ministers, made all nominations, managed the foreign policy and politics, directed the army and even arranged the plans of battle. Absolute mistress of the ministry, she satisfied all demands of the Austrian court, a move which brought her the most flattering letter from Kaunitz, in which he gives her the credit for all the transactions between the two courts.

Despite all her political duties and intrigues, she found time for art and literature. Not one minute of the day was lost in idleness, every moment being occupied with interviews with artists and men of letters, with the furnishers of her numerous châteaux, architects, designers, engineers, to whom she confided her plans for embellishing Paris. Being herself an accomplished artist, she was able to win the respect and attention of these men. Her correspondence was immense and of every nature, political and personal. She was an incessant reader, or rather student, of books on the most serious questions, which furnished her knowledge of terms of state, precedents of history, ancient and modern law; she was familiar with the contents of works on philosophy, the drama, singing, and music, and with novels of all nations; her library was large and well selected.

During the latter years of her life she was considered as the first minister of state or even as regent of the kingdom, rather than as mere mistress. Louis XV. looked to her for the enforcement of the laws and his own orders. She was forced to receive, at any time, foreign ambassadors and ministers; she had to meet in the Cabinet de Travail and give counsel to the generals who were her protégés; the clergy went to her and laid before her their plaints, and through her the financiers arranged their transactions with the state.

Notwithstanding all this influence and power, the record of her last years is a sorrowful one. More than ever queen, she was no longer loved by the king, who went to Passy to continue his liaison with a young girl, the daughter of a lawyer. When Louis XV. as much as recognized a son by this woman, Mme. de Pompadour became deeply concerned; but the king was too much a slave to her domination to replace her, so she retained favor and confidence; the following letter shows that she enjoyed little else:

"The more I advance in years, my dear brother, the more philosophical are my reflections. I am quite sure that you will think the same. Except the happiness of being with the king, who assuredly consoles me in everything, the rest is only a tissue of wickedness, of platitudes, of all the miseries to which poor human beings are liable. A fine matter for reflection (especially for anyone born as meditative as I)!..." Later on, she wrote: "Everywhere where there are human beings, my dear brother, you will find falseness and all the vices of which they are capable. To live alone would be too tiresome, thus we must endure them with their defects and appear not to see them."