(This article is about the king. For the aircraft named after him, see Prajadhipok (aircraft).) Prajadhipok (Thai: ประชาธิปก, RTGS: Prachathipok, 8 November 1893 – 30 May 1941), also Rama VII, was the seventh monarch of Siam of the Chakri dynasty. 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.