Philip the Good died in 1467, and was succeeded by his son, Charles the Bold, a man whose boldness was his only virtue. He was rash, vindictive, and almost insanely ambitious; and the only purpose of his life seems to have been to extend his territory to the Alps and the Mediterranean, to gain possession of Lorraine and Alsatia, and thus to found a kingdom of Burgundy, almost corresponding to that given to Lothar by the Treaty of Verdun, in 843. (See Chapter XII.) He first acquired additional territory in Belgium, then took a mortgage on all the possessions of the Hapsburgs in Alsatia and Baden by making a loan to Sigismund of Tyrol. Frederick III. not only permitted these transactions, but met Charles at Treves in 1473 to arrange a marriage between the latter's only daughter, Mary of Burgundy, and his own son, Maximilian. During the visit, which lasted two months, Charles the Bold displayed so much pomp and splendor that the Emperor, unable to make an equal show, finally left without saying good-bye. The interests of Germany did not move him, but when his personal vanity was touched, he was capable of action. [Sidenote: 1473.] For a short time, Frederick exhibited a little energy and intelligence. In order to secure the alliance of the Swiss, who were equally threatened by the designs of Charles the Bold, he concluded a Perpetual Peace with them, relinquishing forever the claims of the house of Hapsburg to authority over any part of their territory. The cities of Alsatia and Baden advanced money to Sigismund of Tyrol to pay his debt, and when Charles the Bold nevertheless refused to give up Alsatia and part of Lorraine, which he had seized in the meantime, war was declared against him. Louis XI. of France, equally jealous of Burgundy, favored the movement, but took no active part in it. Although Charles was driven out of Alsatia, and failed to take the city of Neuss after a siege of ten months, he succeeded in negotiating a peace, by offering a truce of nine years to Louis XI. and promising his daughter's hand to Frederick's son, Maximilian. In this treaty the Emperor, who had persuaded Switzerland and Lorraine to become his allies, infamously gave them up to Charles the Bold's revenge.