abstract:Princeton Nathan Lyman (born November 20, 1935 in San Francisco, California) is a diplomat and former United States Ambassador to Nigeria (1986–89) and South Africa (1992–95), and former Assistant Secretary of State for International Organization Affairs (1996–98Council on Foreign Relations biography Retrieved 2010-01-12.).
In Khartoum today, Mr. Brennan and Sudan Special Envoy Ambassador PrincetonLyman met with Sudanese government officials to discuss implementation of the Comprehensive Peace Agreement.