Mongkut Mongkut Phra Bat Somdet Phra Poramenthra Maha Mongkut Phra Chom Klao Chao Yu Hua (), or Rama IV, known in English-speaking countries as King Mongkut (18 October 18041 October 1868), was the fourth monarch of Siam (Thailand) under the House of Chakri, ruling from 1851 to 1868. Outside Thailand, he is best known as the king in the 1951 musical and 1956 film "The King and I", based on the 1946 film "Anna and the King of Siam"in turn based on a 1944 novel by an American missionary about Anna Leonowens' years at his court, from 1862 to 1867. During
Anna Leonowens her American readership. In 1946, Talbot Jennings and Sally Benson adapted it into the screenplay for a dramatic film of the same name, starring Irene Dunne and Rex Harrison. In response, Thai authors Seni and Kukrit Pramoj wrote their own account in 1948 and sent it to American politician and diplomat Abbot Low Moffat (1901–1996), who drew on it for his biography "Mongkut, the King of Siam" (1961). Moffat donated the Pramoj brothers' manuscript to the Library of Congress in 1961. Landon had, however, created the iconic image of Leonowens, and "in the mid-20th century she came to personify the