Passionately devoted to the cause of a "free Italy," she was unable to live under the heavy yoke of the Austrian supremacy, and hastened to establish herself at Paris, where her rank, her fortune, her love of letters and the arts, and the boldness of her political opinions, made her the attraction of the highest society. She formed an intimate acquaintance with numerous great writers and celebrated statesmen, particularly of Mignet and Augustin Thierry, whose daily diminishing liberalism she rapidly and boldly outstripped. In 1848 she plunged with all the ardour of an enthusiastic nature--a child of the warm South--into that wild revolutionary movement which swept over almost every country in Europe, rolling from the Alps to the Carpathians, from Paris to Berlin. She hastened to Milan, which had expelled its Austrian garrison, and at her own expense equipped two hundred horse, whom she led against the enemy. But Italy was not then united; she was not strong enough to encounter her oppressor; the bayonets of Radetzky re-imposed the Austrian domination; the princess was compelled to fly, and her estates were confiscated. During the insurrectionary fever at Rome, in 1849, she fearlessly made her way into the very midst of the fighting-men, and in her own person directed the ambulances. Her love of freedom and her humanity were rewarded by banishment from the territories of the Church. As she could nowhere in Italy hope for a secure resting-place, she resolved to reside for the future in the East, and, repairing to Constantinople, she founded there a benevolent institution for the daughters of emigrants. But in a short time she withdrew from European Turkey, and at Osmandjik, near Sinope, laid the foundations of a model farm. In 1850 she published in a French journal, the _National_, her memorials of Veile; and as a relief to the stir and unrest of politics, she wrote, in the following year, her "Notions d'Histoire a l'usage des Enfants" (1851). The narrative of her journey in Asia Minor appeared at a later date in the well-known pages of the _Revue des deux Mondes_. Having recovered possession of her estates, thanks to the amnesty proclaimed by the Emperor Francis Joseph, she sought in literary labour a field for the activity of her restless intellect. Balzac points to that great female artist and republican, the Duchess of San-Severins, in Stendhal's "La Chartreuse de Parme," as a portrait of the princess. Whether this be so or not, she was assuredly one of the most conspicuous and original figures of the time.