The romantic daring of Drake's voyage as well as the vastness of his spoil roused a general enthusiasm throughout England. But the welcome which he received from Elizabeth on his return was accepted by Philip as an outrage which could only be expiated by war. Sluggish as it was, the blood of the Spanish king was fired at last by the defiance with which the Queen listened to all demands for redress. She met a request for Drake's surrender by knighting the freebooter and by wearing in her crown the jewels he offered her as a present. When the Spanish ambassador threatened that "matters would come to the cannon," she replied "quietly, in her most natural voice, as if she were telling a common story," wrote Mendoza, "that if I used threats of that kind she would fling me into a dungeon." Outraged indeed as Philip was, she believed that with the Netherlands still in revolt and France longing for her alliance to enable it to seize them, the king could not afford to quarrel with her. But the victories and diplomacy of Parma were already reassuring Philip in the Netherlands; while the alliance of Elizabeth with the revolted Provinces convinced him at last that their reduction could best be brought about by an invasion of England and the establishment of Mary Stuart on its throne. With this conviction he lent himself to the plans of Rome, and waited only for the rising in Ireland and the revolt of the English Catholics which Pope Gregory promised him to despatch forces from both Flanders and Spain. But the Irish rising was over before Philip could act; and before the Jesuits could rouse England to rebellion the Spanish king himself was drawn to a new scheme of ambition by the death of King Sebastian of Portugal in 1580. Philip claimed the Portuguese crown; and in less than two months Alva laid the kingdom at his feet. The conquest of Portugal was fatal to the Papal projects against England, for while the armies of Spain marched on Lisbon Elizabeth was able to throw the leaders of the expected revolt into prison and to send Campian to the scaffold. On the other hand it raised Philip into a far more formidable foe. The conquest almost doubled his power. His gain was far more than that of Portugal itself. While Spain had been winning the New World her sister-kingdom had been winning a wide though scattered dominion on the African coast, the coast of India, and the islands of the Pacific. Less in extent, the Portuguese settlements were at the moment of even greater value to the mother country than the colonies of Spain. The gold of Guinea, the silks of Goa, the spices of the Philippines made Lisbon one of the marts of Europe. The sword of Alva had given Philip a hold on the richest trade of the world. It had given him the one navy that as yet rivalled his own. His flag claimed mastery in the Indian and the Pacific seas, as it claimed mastery in the Atlantic and Mediterranean. [Sidenote: The marriage with Anjou.]