The Napoleonic Wars had torn Europe apart, and the peace conference of 1814 was to be held in the continent's grandest city: Vienna. Everyone had an agenda in the postwar world, and spy networks, bitter hatreds, illicit affairs, and tangled alliances ensued.Despite the gravity of the situation, the Hapsburg Emperor of Austria, in opening his splendid rococo palace to the European royals and providing elaborate banquets and lavish entertainments, set...