Princeton Lyman

Princeton Nathan Lyman (November 20, 1935 – August 24, 2018) was an American diplomat. He was born in San Francisco, California. He was the United States Ambassador to Nigeria (1986–89) and South Africa (1992–95), and former Assistant Secretary of State for International Organization Affairs (1996–98). 
Lyman died of lung cancer on August 24, 2018 in Silver Spring, Maryland, aged 82.