When Montespan began to make trouble by railing furiously against the friendship of the King for his wife, his behaviour so amazed the King's cousin, Mademoiselle de Montpensier, that she called him “an extravagant and extraordinary man.” To his face she told him that he must be mad to behave in this fashion; and so incredibly distorted were his views, that he did not at all agree with her. He provoked scenes with the King, in which he quoted Scripture, made opposite allusions to King David which were in the very worst taste, and even ventured to suggest that the Sun-King might have to reckon with the judgment of God. If he escaped a lettre de cachet and a dungeon in the Bastille, it can only have been because the King feared the further spread of a scandal injurious to the sacrosanctity of his royal dignity.

The Marchioness fumed in private and sneered in public. When Mademoiselle de Montpensier suggested that for his safety's sake she should control her husband's antics, she expressed her bitterness.

“He and my parrot,” she said, “amuse the Court to my shame.”

In the end, finding that neither by upbraiding the King nor by beating his wife could he prevail, Monsieur de Montespan resigned himself after his own fashion. He went into widower's mourning, dressed his servants in black, and came ostentatiously to Court in a mourning coach to take ceremonious leave of his friends. It was an affair that profoundly irritated the Sun-King, and very nearly made him ridiculous.

Thereafter Montespan abandoned his wife to the King. He withdrew first to his country seat, and, later, from France, having received more than a hint that Louis was intending to settle his score with him. By that time Madame de Montespan was firmly established as maitresse en titre, and in January of 1669 she gave birth to the Duke of Maine, the first of the seven children she was to bear the King. Parliament was to legitimize them all, declaring them royal children of France, and the country was to provide titles, dignities, and royal rent-rolls for them and their heirs forever. Do you wonder that there was a revolution a century later, and that the people, grown weary of the parasitic anachronism of royalty, should have risen to throw off the intolerable burden it imposed upon them?

The splendour of Madame de Montespan in those days was something the like of which had never been seen at the Court of France. On her estate of Clagny, near Versailles, stood now a magnificent chateau. Louis had begun by building a country villa, which satisfied her not at all.

“That,” she told him, “might do very well for an opera-girl”; whereupon the infatuated monarch had no alternative but to command its demolition, and call in the famous architect, Mansard, to erect in its place an ultraroyal residence.

At Versailles itself, whilst the long-suffering Queen had to be content with ten rooms on the second floor, Madame de Montespan was installed in twice that number on the first; and whilst a simple page sufficed to carry the Queen's train at Court, nothing less than the wife of a marshal of France must perform the same office for the favourite. She kept royal state as few queens have ever kept it. She was assigned a troop of royal bodyguards for escort, and when she travelled there was a never-ending train to follow her six-horse coach, and officers of State came to receive her with royal honours wherever she passed.

In her immeasurable pride she became a tyrant, even over the King himself.

“Thunderous and triumphant,” Madame de Sevigne describes her in those days when the Sun-King was her utter and almost timid slave.