Alberoni's plots were of more importance. He was one of those statesmen who owe their rise to the democratic character of the Roman Church. The son of a market gardener, of a singularly undignified exterior, he had found means to make himself indispensable to the Duke of Vendome during the war of the Spanish succession, and had subsequently established his position in Spain by bringing about the marriage of Philip with Elizabeth of Parma. His object was entirely patriotic; he desired to replace Spain in the list of great European nations. For this purpose he set to work with remarkable success to revive the industry and wealth of the country. But his views reached further than this; he aimed at the destruction of the Treaty of Utrecht. By that treaty Austria had gained almost all that Spain had lost. It was therefore against Austria that his designs were chiefly directed. Knowing of the irritation which existed between Austria and England with regard to the Barrier Treaty, and believing that France would be unwilling to do anything to the disadvantage of a Bourbon kingdom of its own creation, he supposed that Austria would be without allies. To secure friendship with England, he even granted her great commercial advantages. The defensive alliance between England and Austria, in 1716, was the first blow to his plan. The subsequent conclusion, in 1717, of the Triple Alliance opened his eyes to the probable policy of France. It was then that he threw himself into the intrigues of the Jacobites and the party of the Duke of Maine, and put himself into communication with Charles of Sweden. Alberoni's chief object was to destroy the Austrian power in Italy. Conscious that Spain had gained in strength by the loss of her widespread foreign dependencies, he had no intention of conquering that country. But he wished to restrict the Austrian power there, firstly, by the establishment of younger branches of the Spanish house in Sicily (at the instant belonging by the Treaty of Utrecht to Victor Amadeus of Savoy), and in the duchies of Parma and Tuscany, where the reigning houses were drawing towards extinction, and to which Elizabeth Farnese had claims; and, secondly, by the increase of the territory of Savoy, which he designed to compensate for the loss of Sicily by the cession of a portion of Lombardy. The possession of Sicily was therefore of the first importance to him. But Austria had already been negotiating with the powers of the Triple Alliance for the exchange of that island for Sardinia. Alberoni himself desired to wait till Spain had acquired more power at home, but the apprehension by the Austrians of a newly appointed Spanish inquisitor roused the anger of Philip V., and, against his will, Alberoni was hurried into war. To prevent the exchange of Sicily he at once took possession of Sardinia, and would probably have proceeded to attack Sicily, when the Powers of the Triple Alliance intervened. [Sidenote: Opposition of the Triple Alliance.]