To attempt such a recovery was to defy Europe; for if the Treaty had stripped Spain of its fairest dependencies, it had enriched almost every European state with its spoils. Savoy had gained Sicily; the Emperor held the Netherlands, with Naples and the Milanese; Holland looked on the Barrier fortresses as vital to its own security; England, if as yet indifferent to the value of Gibraltar, clung tenaciously to the American Trade. But the boldness of Cardinal Alberoni, who was now the Spanish Minister, accepted the risk; and while his master was intriguing against the Regent in France, Alberoni promised aid to the Jacobite cause as a means of preventing the interference of England with his designs. In spite of failure in both countries he resolved boldly on an attempt to recover the Italian provinces which Philip had lost. He selected the Duke of Savoy as the weakest of his opponents; and armaments greater than Spain had seen for a century put to sea in 1717, and reduced the island of Sardinia. The blow however was hardly needed to draw England and France together. The Abbe Dubois, a confidant of the Regent, had already met the English King with his Secretary, Lord Stanhope, at the Hague; and entered into a compact, by which France guaranteed the Hanoverian line in England, and England the succession of the house of Orleans should Lewis the Fifteenth die without heirs. The two powers were joined, though unwillingly, by Holland in an alliance, which was concluded on the basis of this compact; and, as in William's time, the existence of this alliance told on the whole aspect of European politics. Though in the summer of 1718 a strong Spanish force landed in Sicily, and made itself master of the island, the appearance of an English squadron in the Straits of Messina was followed by an engagement in which the Spanish fleet was all but destroyed. Alberoni strove to avenge the blow by fitting out an armament of five thousand men, which the Duke of Ormond was to command, for a revival of the Jacobite rising in Scotland. But the ships were wrecked in the Bay of Biscay; and the accession of Austria with Savoy to the Triple Alliance, with the death of the king of Sweden, left Spain alone in the face of Europe. The progress of the French armies in the north of Spain forced Philip at last to give way. Alberoni was dismissed; and the Spanish forces were withdrawn from Sardinia and Sicily. The last of these islands now passed to the Emperor, Savoy being compensated for its loss by the acquisition of Sardinia, from which its Duke took the title of King; while the work of the Treaty of Utrecht was completed by the Emperor's renunciation of his claims on the crown of Spain, and Philip's renunciation of his claims on the Milanese and the Two Sicilies. [Sidenote: Resignation of Townshend.]