The death of Diana of Poitiers was that common to all women of her position. She died in 1566, forgotten by the world—her world. In her will she made "provision for religious houses, to be opened to women of evil lives, as if, in the depth of her conscience, she had recognized the likeness between their destiny and her own." Like the former mistresses, she had been required to give up the jewels received from Henry II.; but as this order was from Francis II. instead of from his mistress, the gems were returned to the crown after having passed successively through the hands of three mistresses. Catherine's time had not yet come, for she dared not interfere when Mary Stuart (a beautiful, inexperienced, and impetuous girl of seventeen) gained ascendency over Francis II.—a mere boy. The house of Guise was then supreme and began its bloody campaign against its enemies; fortunately, however, its power was short-lived, for in 1560 the king died after reigning only seventeen months. At this point, Catherine enters upon the scene of action. Jealous of Mary Stuart and fearing that the young king, Charles IX., then but ten years old, might become infatuated with her and marry her, she promptly returned the fair young woman to Scotland. The task before the regent was no light one; her kingdom was divided against itself, the country was overburdened with taxes, and discontent reigned universally. All who surrounded her were full of prejudice and actuated solely by personal aspirations—she realized that she could trust no one. Her first act of a political nature was to rescue the house of Valois and solidify the royal authority. Some critics maintain that she began her reign with moderation, gentleness, impartiality, and reconciliation. This view finds support in the fact that during the first years she favored Protestantism; finding, however, that the latter was weakening royal power and that the country at large was opposed to it, she became its most bitter enemy. To the Protestants and their plottings she attributed all the disastrous effects of the civil war, all thefts, murders, incests, and adulteries, as well as the profanation of the sepulchres of the ancestors of the royal family, the burning of the bones of Louis XI. and of the heart of Francis II. The Machiavellian policy was Catherine's guide; bitter experience had robbed her of all faith in humanity—she had learned to despise it and the judgment of her contemporaries. At first she was amiable and polite, seemingly intent upon pleasing those with whom she talked; in fact, it is said that she was then more often accused of excessive mildness and moderation than of the violence and cruelty which later characterized her. Experience having taught her how to deal with people, she never lost her self-control.