Talleyrand wins legitimacy at Vienna
At the Congress of Vienna in 1814–15, Talleyrand represented defeated France yet talked his way into the inner council of the victorious Four Powers. He did it by invoking the principle of 'legitimacy' and exploiting the split over Poland and Saxony, signing a secret alliance with Britain and Austria against Russia and Prussia in January 1815. Cooper presents this as the proof that a beaten nation's negotiator, holding no military cards, can turn the victors' own principles and quarrels into leverage.