In Norway this war was named Hannibal's Feud, after the viceroy Hannibal Sehested, a son-in-law of the king, who, with the aid of the brave parson, Kjeld Stub, guarded the frontier. One might have supposed that the nobles, at the death of Christian IV. would have rested content with the excessive privileges which they already possessed, and allowed his son Frederick III. (1648-1670) to ascend the throne, without stripping himself of the last remnant of his power. But as long as there was any thing left to grab, it seemed worth grabbing. Frederick III. was, therefore, compelled to grant a more humiliating charter than any of his predecessors, and would have been, if he had long acquiesced in the agreement, a mere shadow king. The arrogance and greed of the nobles, fostered by long security in aggression, became, however, the cause of their downfall. The Royal Council, which was the real governing power in the state, had the imprudence to declare war against Sweden, on the strength of a rumor, that the Swedish king, Charles X. Gustavus, had suffered an overwhelming defeat in Poland. This rumor proved to be false, and Charles conquered in a short time both Jutland and Funen, and threatened Copenhagen. Denmark was completely at his mercy, and the Council was compelled to buy peace at Roskilde (1658) by the cession of Skaane, Halland, Blekinge, Bornholm, and the Norwegian provinces, Viken and Drontheim. And yet in Norway the only success of the war had been won, the Norwegian general Bjelke having conquered Jemteland. It seemed as if Charles Gustavus, after having obtained these enormous advantages, regretted that he had not made an end of Denmark altogether. He hesitated to quit Danish territory, renewed the war, and was, by aid of the Dutch and Austrians, who feared his overweening power, defeated at Nyborg and repulsed at Copenhagen. In Norway the Trönders revolted successfully against the Swedish rule, and the Bornholmers likewise drove away the invaders. At the Peace of Copenhagen (1660), Charles Gustavus was forced to relinquish his hold upon these provinces, while keeping his other conquests. [Illustration: FREDERICK III., KING OF DENMARK AND NORWAY.]