Having appeased her father, Mademoiselle went to the Palais Royal hoping to pacify the Queen. Anne of Austria greeted her with icy reserve and Mademoiselle never could forget it. She had looked upon Anne of Austria as children look upon an elder sister. Thenceforth, feeling that she had no hope of support from her own family, she bent every effort to the difficult task of finding a suitable husband and of establishing her life on a firm and independent basis. Mazarin's unswerving determination to prevent Mademoiselle's marriage was classed among the most important of the causes which contributed to the Fronde. The dangers attendant upon his conduct were real and serious; practically he was Mademoiselle's only guardian, and Mademoiselle was not only the favorite of the people but the Princess of the reigning house. As the director of a powerful nation Mazarin had duties which no State's minister is justified in ignoring. There were times when many of his other errors were so represented as to appear pardonable, but there never was a time when he was not blamed for the humiliation of the haughty Princess who, by no fault of her own, had been left upon the shores of life, isolated, hopeless of establishment, an object of ridicule to the unobservant who failed to see the pathetic loneliness of her position. The Parisians, high and low, thought that the Queen's Minister had done Mademoiselle an irreparable wrong, and it was thought that she knew that he had done her a wrong. It was believed that she would be a dangerous adversary in the day when the French people called him to account. Mademoiselle knew her power and talked openly of what she could do. "I am," she said, "a very bad enemy; hot-tempered, strong in anger; and that, added to my birth, may well make my enemies tremble." She could say it without boasting: she was a Free Lance and the great French People was her clan. III Two years[94] previous to the serio-comic scene in the Palais Royal, Emperor Ferdinand III. had barely escaped causing a catastrophe. Had the catastrophe been effected the victim would have been the Princess of a reigning house. This is a very roundabout way of saying that Mademoiselle's anxiety to marry the Emperor led her to prepare for the alliance by practising religion; and that once engaged in the practice, she was seized by the desire to become a nun.