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 and the King of Siam (novel) Anna and the King of Siam (novel) Anna and the King is a 1944 semi-fictionalized biographical novel by Margaret Landon. In the early 1860s, Anna Leonowens, a widow with two young children, was invited to Siam (now Thailand) by King Mongkut (Rama IV), who wanted her to teach his children and wives the English language and introduce them to British customs. Her experiences during the five years she spent in the country served as the basis for two memoirs, "The English Governess at the Siamese Court" (1870) and "Romance of the Harem" (1872). Landon took Leonowens' first-person narratives and enhanced