It was a brilliant match indeed for the daughter of a petty Italian baron; and Mazarin saw that it was celebrated with becoming magnificence. On the 20th February, 1657, we see a brilliant company repairing to the Queen's apartments, "the Comte de Soissons escorting his betrothed, dressed in a gown of silver cloth, with a bouquet of pearls on her head, valued at more than 50,000 livres, and so many jewels that their splendour, joined to the natural éclat of her beauty, caused her to be admired by everyone. Immediately afterwards, the nuptials were celebrated in the Queen's chapel. Then the illustrious pair, after dining with the Princesse de Carignan-Savoie, ascended to the apartments of his Eminence, the Cardinal, where they were entertained to a magnificent supper, at which the King and Monsieur did the company the honour of joining them."

Then followed two days of regal receptions; a visit to Notre Dame to hear Mass, with the Queen herself as escort; and a stately journey to the Hôtel de Soissons, where the Comtesse's mother-in-law "testified to her, by her joy and the rich presents which she made her, how great was the satisfaction with which she regarded this marriage."

Thus raised to the rank of a Princess of the Blood, Olympe was by no means the proud and happy woman she ought to have been. She had, in fact, aspired much higher; she had had dreams of sharing the throne of France with her handsome young playmate, the King; and to Louis, wife though she now was, she had lost none of the attraction she possessed when he called her his "little sweetheart" in their childish games together. "He continued to visit her with the greatest regularity," to quote Mr Noel Williams; "indeed, scarcely a day went by on which His Majesty's coach did not stop at the gate of the Hôtel de Soissons; and Olympe, basking in the rays of the Royal favour, rapidly took her place as the brilliant, intriguing great lady Nature intended her to be."

It is little wonder, perhaps, that Olympe's foolish head was turned by such flattering attentions from her sovereign, or that she began to give herself airs and to treat members of the Royal family with a haughty patronage. Even La Grande Mademoiselle did not escape her insolence; for, as she herself records, "when I paid her a thousand compliments and told her that her marriage had given me the greatest joy and that I hoped we should always be good friends, she answered me not a word."

But Olympe's supremacy was not to remain much longer unchallenged. The King's vagrant fancy was already turning to her younger sister, Marie, whose childish plainness had now ripened to a beauty more dazzling than her own—the witchery of large and brilliant black eyes, a complexion of pure olive, luxuriant, jet-black hair, a figure of singular suppleness and grace, and a sprightliness of wit and a gaieté de coeur which the Comtesse could not hope to rival. It soon began to be rumoured in Court that Louis spent hours daily in the company of Mazarin's beautiful niece; a rumour which Hortense Mancini supports in her "Memoirs." "The presence of the King, who seldom stirred from our lodging, often interrupted us," she says; "my sister, Marie, alone was undisturbed; and you can easily understand that his assiduity had charms for her, who was the cause of it, because it had none for others."

And as Louis' visits to the Mancini lodging became more and more frequent, each adding a fresh link to the chain that was binding him to her young sister, Madame de Soissons saw less and less of him, until an amused tolerance gave place to a genuine alarm. It was nothing less than an outrage that she, who had so long held first place in the King's favour, should be ousted by a "mere child," the last person in the world whom she could have thought of as a rival. But the Comtesse was no woman to be easily dethroned. Although at every Court ball, fête, or ballet, Louis was now inseparable from her sister, she affected to ignore these open slights and lost no opportunity in public of vaunting her intimacy with His Majesty, even to the extent on one occasion, as Mademoiselle records, of taking Louis' seat at a ball supper and compelling him to share it with her.

But such shameless arrogance only served to estrange the King still further, and to make him seek still more the company of the young sister, who had already captured his heart as the Comtesse had never captured it. When Louis made his memorable journey to Lyons to meet the Princess Margaret of Savoy, it was to Marie that he paid the most courtly and tender attentions. "During the journey," says Mademoiselle, "he did not address a word to the Comtesse de Soissons"; and, indeed, on more than one occasion he showed a marked aversion to her.

At St Jean d'Angely, Louis not only himself escorted Marie to her lodging; he stayed with her until two o'clock in the morning. "Nothing," her sister Hortense records, "could equal the passion which the King showed, and the tenderness with which he asked of Marie her pardon for all she had suffered for his sake." It was, indeed, no secret at Court that he had offered her marriage, and had taken a solemn vow that neither Margaret of Savoy nor the Infanta of Spain should be his wife. But, as we have seen in a previous chapter, both the Queen and Mazarin were determined that the Infanta should be Queen of France; and that his foolish romance with the Mancini girl should be nipped in the bud.

There was also another powerful influence at work to thwart his passion for Marie. The indifference of the Comtesse de Soissons had given place to a fury of resentment; and she needed no instigation of her uncle to determine at any cost to recover the place she had lost in Louis' favour. She brought all her armoury of coquetry and flatteries to bear on him, and so far succeeded that, we read, "the King has resumed his relations with the Comtesse; he has recommenced to talk and laugh with her; and three days since he entertained M. and Madame de Soissons with a ball and a play, and afterwards they partook of medianoche (a midnight banquet) together, passing more than three hours in conversation with them."

Meanwhile Marie, realising the hopelessness of her passion in face of the opposition of her uncle and the Queen, and of Louis' approaching marriage to the Spanish Princess, had given him unequivocally to understand that their relations must cease, and the rupture was complete when the Comtesse told the King of her sister's dallying with Prince Charles of Lorraine, of their assignations in the Tuileries, of their mutual infatuation, and of the rumours of an arranged marriage. "Cela est bien" was all Louis remarked, but the dark flush of anger that flooded his face was a sweet reward to the Comtesse for her treachery.