Phra Bat Somdet Phra Poramintharamaha Prajadhipok Phra Pok Klao Chao Yu Hua (Thai: 鉊??腦鉊啤?鉊耜?鉊芹腹鉆??鉊?鉊???鉊?萼鉊??腦鉊﹤葩鉊???鉊?腹鉊徇葡鉊??腦鉊啤?鉊耜?鉊毯?鉊??葛 鉊??腦鉊啤?鉊???鉊??艇鉆??葡鉆??鉊???鉊耜葉鉊Ｒ號鉆??葦鉊晤葷), or Rama VII (8 November 1893 ??30 May 1941) was the seventh monarch of Siam under 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 huge political and social changes during the Revolution of 1932. Also he was the only Siamese monarch to abdicate.