What is "prajadhipok"

Prajadhipok (; 8 November 1893 – 30 May 1941), also Rama VII, was the seventh monarch of Siam of the House of Chakri. He was the last absolute monarch and the first constitutional monarch of the country. His reign was a turbulent time for Siam due to political and social changes during the Revolution of 1932. He is to date the only Siamese monarch of the Chakri Dynasty to abdicate.