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 to London, was better known by his stage name of Boris Karloff, making Anna his grand-aunt. Anna Edwards never approved of her sister's marriage, and her self-imposed separation from the family was so complete that, decades later, when a Pratt relative contacted her, she replied by threatening suicide if he persisted. Anna's mother, Mary Edwards, a widow, later married an Irish soldier, Patrick Donohoe of the Royal Engineers. Anna Edwards's relationship with her stepfather Donohoe was not a happy one, and she later accused him of putting pressure on her, like her sister (with whom she also fell out), to