Foiled in these quarters, Alberoni appeared more successful in the North. A negotiation had been opened between the two potentates, so long at bitter variance, the Czar and Charles XII. of Sweden. They were induced to meet in the island of Åland, and to agree that the Czar should retain Livonia, and other Swedish territories south of Finland which he had torn from Sweden, but, in compensation, Charles was to be allowed to reconquer Bremen and Verden from George of Hanover and England, and Norway from Denmark; and the two monarchs were to unite their arms for the restoration of Stanislaus to the throne of Poland, and of the Pretender to that of Great Britain. The success of these arrangements appeared to Alberoni so certain that he boasted that the Northern tempest would burst ere long over England with annihilating fury; but even here he was doomed to disappointment. Charles XII. delighted in nothing so much as in wild and romantic enterprise. Such was that of the conquest of Norway; and he was led by his imagination to commence it without delay. With his characteristic madness, he divided his army into two parts, with one of which he took the way by the coast of Norway, and the other he sent over the mountains at the very beginning of winter. There that division perished in the snow amid the most incredible horrors; and he himself, whilst carrying on the siege of Frederickshall, was killed on the 11th of December, as appears probable, by the treacherous shot of a French engineer in his service. Almost simultaneously the Duke of Maine's conspiracy against the French Government was detected, and he and his wife, together with the Spanish Ambassador, were apprehended. There was nothing for it on the part of the Regent but to proclaim war against Spain--a measure which England had long been urging on him. The English declaration appeared on the 28th of December, 1718, and the French on the 9th of January, 1719.