By this treaty Parma and Tuscany were ceded in reversion to the infant Don Carlos; Sicily was to be made over to the Emperor, and, in exchange for it, Sardinia was to be given to Victor Amadeus of Savoy. As Sardinia was an island of so much less extent and value than Sicily, the succession to the Crown of Spain was guaranteed to the House of Savoy should Philip of Spain leave no issue. Three months were allowed for the King of Spain and the Duke of Savoy to come in, and after that, in case of their non-compliance, force was to be used to effect it. It was to avert such a result that Stanhope (now Secretary for the Southern Department, which included Foreign Affairs) made a journey to Spain, where he failed to make the slightest impression on Alberoni. Before setting out, however, Admiral Byng had been despatched to the Mediterranean with twenty-one ships of the line, and peremptory orders to attack the Spanish fleet whenever he should find it engaged in any hostile attempt against Sicily, Naples, or any other of the Emperor's possessions in the Mediterranean. Byng went in pursuit of the Spanish fleet, which was assisting in the conquest of Sicily, and came in sight of twenty-seven sail of the line, with fire-ships, ketches, bombs, and seven galleys, drawn up in line of battle between him and Cape Passaro. So soon as they were clear of the straits, a council was held to determine whether they should fight or retreat. They came to no resolution, but continued to linger about in indecision till Byng was down upon them. Whereupon he utterly destroyed them (August 11, 1718). Alberoni, though defeated at sea, was more successful in Sicily, and he continued his cabals against England in nearly every Court of Europe with only the more assiduity. He was zealously at work in France, England itself, Holland, Piedmont, and Sweden. By his ambassador at the Hague he endeavoured to keep the Dutch out of the Quadruple Alliance by exciting their commercial jealousy; but he was ably opposed by our minister there, the Earl of Cadogan. In Piedmont he endeavoured to deter Victor Amadeus from entering into this alliance by assuring him that he was only endeavouring to secure Sicily to keep it out of the hands of the Austrians, and reserve it for him; while, on the other hand, he threatened him with thirty thousand bayonets if he dared to accede to the Quadruple Treaty. The Allies, however, threatened still greater dangers, and the Duke at last consented to accept Sardinia in lieu of Sicily, and that island remains attached to the kingdom of Italy to the present time. [Illustration: SEA FIGHT OFF CAPE PASSARO. (_See p._ 41.)]