The King of Thailand, Bhumibol Adulyadej, has an estimated net worth of $30 billion. He has reigned for 64 years, the longest reigning monarch in Thailand’s history and the longest serving current head of state in the world. Known as Rama IX, he was born on December 5, 1927 in Mount Auburn Hospital in Cambridge, Massachusetts. He was the younger son of HRH Prince Mahidol Aduljadej and HRH Princess Srinagarindra. He was enrolled by his father in the Public Health program at Harvard University. He briefly attended Mater Dei school in Bangkok but his mother took the family to Switzerland in 1933. He continued his education at the Ecole Nouvelle de la Suisse Romande in Lausanne. He received thebaccalauréat des lettres (high-school diploma with major in French literature, Latin, and Greek) from the Gymnase Classique Cantonal of Lausanne. In 1945, he begun studying science at the University of Lausanne, when the family returned to Thailand after the World War II ended.