Unique in his own age and a phenomenon in any, Charles-Maurice, Prince de Talleyrand, was a statesman of outstanding ability and extraordinary contradictions. He was a world-class rogue who held high office in five successive regimes. A well-known opportunist and a notorious bribe taker, Talleyrand's gifts to France arguably outvalued the vast personal fortune he amassed in her service. Once a supporter of the Revolution, after the fall of the monarchy,...