His Majestybriefly attended Mater Dei school in Bangkok before moving to Switzerland with his family in 1933 because of the political turmoil in Thailand . He continued his studies at the Ecole Miremont primary school , followed by the Ecole Nouvelle de la Suisse Romande in Lausanne . In 1938 , he attened the Gymnase Classique Cantonal of Lausanne , where he received the Bachelieres Lettres diploma . His Majesty then went on to Lausanne University to study Science.