In this picture taken circa 1934 during the winter in Switzerland, the future king of Thailand Bhumibol Adulyadej (right) stands with his mother, princess Srinagarindra, elder sister princess Galyani Vadhana (left) and brother prince Ananda Mahidol (second from right). (Photo by Thierry Falise Collection/Thierry Falise/LightRocket via Getty Images)





Thailand's Prince Bhumibol, left, now King Bhumibol Adulyadej, known as Rama IX, with his brother Prince Ananda, the former King Ananada Mahidol, in the grounds of the school in Lausanne Switzerland, on March 7, 1935. King Ananada died of a gunshot wound to his head in 1946. (Photo by AP Photo)





In this December 16, 1938, file photo, thirteen-year-old King Ananda of Siam, now known as Thailand, left, and his brother Prince Bhumibol, right, inspect a model train presented to him at Saranromya Gardens in Bangkok. Thailand's Royal Palace said on Thursday, October 13, 2016, that Thailand's King Bhumibol Adulyadej, the world's longest-reigning monarch, has died at age 88. (Photo by AP Photo)





King Bhumibol Adulyadej of Thailand with his fiancee Sirikit Kitiyakara, 14th January 1950. (Photo by Picture Post/Hulton Archive/Getty Images)





The new King of Siam, Bhumibol Adulyadej, 18 years old, was named King after the accidental death of his older brother King Ananda Mahidol on June 9, 1946. (Photo by AP Photo)





Thailand's baby Princess Ubol Ratana (diamond lotus) with her parents, King Bhumibol Adulyadej, 24, and Queen Sirikit, 19, on May 2, 1951. The Princess was born at Lausanne, Switzerland on April 6- eleven months after the marriage and coronation of her parents in Bangkok. (Photo by AP Photo)





In this February 16, 1981, file photo, Thai King Bhumibol Adulyadej receives a small plant from a Thai woman as he makes a visit to one of his crop substitution projects in Northern Thailand. The king’s time in the countryside probably did much to shape his idealized vision of Thailand, one more rooted in a self-sufficient agricultural society than urban aspirations and values that were taking hold. (Photo by Jeff Robbins/AP Photo)





The Royal family of Thailand poses for a recent photograph on the steps of Bangkok's Chitralda Palace, February 28, 1955. With King Bhumibol Adulyadej, 27, and Queen Sirikit, 23, are their Children, Crown Prince Vajiralongkorn, 2, left, and Princess Ubol Ratana, 3. (Photo by AP Photo)





King Bhumibol talks with Thailand Prime Minister Gen. Prem Tinsulanonda as they visit an irrigation project in Northern Thailand recently, February 16, 1981. Gen. Prem helped the King play host to visiting foreign ambassadors from Bangkok. (Photo by AP Photo)





In this June 28, 1960, file photo, U.S. President Dwight Eisenhower, center, is seated between Thailand's King Bhumibol Adulyadej, left, and Queen Sirikit for a motorcade drive from National Airport to the White House in Washington. (Photo by AP Photo)





Thailand's King Bhumibol Adulyadej in serious portrait January 01, 1960. (Photo by John Dominis/The LIFE Picture Collection/Getty Images)





French President General de Gaulle (2nd L) and his wife Yvonne de Gaulle (L), king Bhumibol Adulyadej and his wife queen Sirikit of Thailand pose for the photographers after a diner at the Elysee Palace in Paris 12 October 1960 during an official visit of the royal couple in France. (Photo by AFP Photo)





A 21-year-old Bhumibol with his future wife Sirikit Kitiyakara, 17, in 1949. (Photo by Keystone-France/Gamma-Keystone via Getty Images)





A royal household handout photo taken in 1969 shows Thai King Bhumibol riding on a horse during his visit to a hilltribe village for his Royal project to help the hilltribe people replace their opium crops with viable alternatives in northern Thailand. (Photo by EPA/Royal Household)





Thai King Bhumibol Adulyadej greets one of his loyal subjects in the central region of Thailand in this undated file picture. (Photo by EPA/Royal Household)





King Bhumibol and Queen Sirikit of Thailand attend a reception at Wellington Town Hall at the start of their eight-day tour of New Zealand, August 1962. (Photo by Central Press/Hulton Archive/Getty Images)





King Bhumibol and Prince Vajirlongkorn playing the saxophones, 1965. (Photo by Henry Clarke/Condé Nast via Getty Images)





King Bhumibol and Queen Sirikit before a statue of Paolina Borghese shown in Borghese Museum in Rome, 1960. (Photo by Keystone-France/Gamma-Keystone via Getty Images)





Thai royal family including King Bhumibol adulydej, Queen Sirikit (left) and Princess Chulabhorn as they talked to 100 demonstrators in Bangkok Sunday October 15, 1973, during demonstration which resulted in fall of Thanom Kittikachorn government. Royalty appeared- including King in shirtsleeves after protestors took refuge in palace compound. (Photo by AP Photo)





In this February 11, 1972, file photo, Britain's Queen Elizabeth II walks with Thailand's King Bhumibol Adulyadej, right, with Queen Sirikit at rear left and Prince Philip at rear right, in Bangkok. (Photo by AP Photo)





This file photo taken on May 5, 1950 shows Thai King Bhumibol Adulyadej being carried by a cortege during the coronation ceremony in Thailand. (Photo by AFP Photo)





King Bhumibol Adulyadej of Thailand is carried on the shoulders of Royal guards during a parade in Bangkok December 7, 1963. The parade climaxed one week-long celebration of the King's 36th birthday. (Photo by AP Photo)





In this July 5, 1960, file photo, Thailand's King Bhumibol Adulyadej, right, plays the saxophone during a jam session with legendary jazz clarinetist Benny Goodman, left, drummer Gene Krupa, second left, and trombonist Urbie Green in New York. (Photo by Bureau of the Royal Household via AP Photo)





In this May 27, 1963, file photo, Japan's Emperor Hirohito, right, walks with Thailand's King Bhumibol Adulyadej, as he arrives in Tokyo. At rear are Thailand's Queen Sirikit, third from left, and Japan Empress Nagako, second left. (Photo by AP Photo)





Sirikit of Siam (2L), the queen consort and Bhumibol Adulyadej (L), King (Rama IX) of Thailand, are welkomed by Queen Elizabeth II and Philip, Duke of Edinburgh, upon their arrival in the United Kingdom, on July 1960 in London. (Photo by AFP Photo)





Thai King Bhumibol Adulyadej, the world's longest-reigning monarch, reviews royal guards at an annual trooping of the colours at the Royal Plaza in Bangkok,Thailand in this December 3, 1987 file photo. (Photo by Arthur Tsang/Reuters)





Thai King Bhumibol Adulyadej (L) and Queen Sirikit meet with Thailand's military coup leaders in Bangkok on September 19, 2006. Coup leaders sitting are (L-R) Air Forces Chief Chalit Phukpasuk, Navy Chief Admiral Satiraphan Kayanont and Army Chief General Sonthi Boonyaratglin. (Photo by Reuters)





In this May 14, 1996, file photo, Thailand's King Bhumibol Adulyadej and Queen Sirikit hold a sickle during a rice harvesting ceremony in Ayuthaya, 70 km (44 mi) north of Bangkok. (Photo by Charles Dharapak/AP Photo)





Thailand's King Bhumibol Adulyadej, left, greets Britain's Queen Elizabeth II at a banquet held at the British Embassy in Bangkok Wednesday, October 30, 1996. (Photo by Weerachai Tangmettajittakul/AP Photo/The Nation)





In this October 28, 1996, file photo, Thailand's King Bhumibol Adulyadej, second right, walks with Britain's Queen Elizabeth II after her arrival at Bangkok's military airport. (Photo by Richard Vogel/AP Photo)





In this November 25, 1996, file photo, U.S. President Bill Clinton, left, meets with Thailand's King Bhumibol Adulyadej at Chitrlada Palace in Bangkok. (Photo by AP Photo)





Thai King Bhumibol Adulyadej signs the royal command approving new cabinet of Prime Minister Chuan Leekpai (L) at the Chitrlada Palace in Bangkok November 14, 1997. (Photo by Reuters)





U.S. President George W. Bush talks with Thailand's King Bhumibol Adulyadej at a State Dinner at the Royal Grand Palace in Bangkok, October 19, 2003. (Photo by Jason Reed/Reuters)





Thailand's King Bhumibol Adulyadej leaves the Siriraj Hospital for a ceremony at the Grand Palace in Bangkok in this December 5, 2010 file photo. (Photo by Sukree Sukplang/Reuters)





In this December 5, 2012, file photo, Thailand's King Bhumibol Adulyadej, left, is seated as Crown Prince Vajiralongkorn, second left, and Princess Sirindhorn, right, stand after he addressed the crowd from a balcony of the Ananta Samakhom Throne Hall on his 85th birthday in Bangkok. (Photo by Wason Wanichakorn/AP Photo)





In this April 30, 2013, file photo, Thailand Crown Prince Vajiralongkorn, right, and Princess Sirindhorn attend a church service prior to the inauguration of Dutch King Willem-Alexander in Amsterdam. (Photo by Michel Kooren/Pool Photo via AP Photo)





A file picture dated 30 April 2007 shows Thai King Bhumibol Adulyadej (L) and Queen Sirikit during a launching ceremony of a new navy coast patrol ship at Thai Royal Navy Shipyard, Bangkok, Thailand. (Photo by Rungroj Yongrit/EPA)





In this May 25, 2012, file photo, Thailand's King Bhumibol Adulyadej, center, is pushed in a wheelchair as he arrives at a rice field in Ayutthaya province, central Thailand. Thailand's Queen Sirikit, in purple, is walking at rear with Princess Sirindhorn. (Photo by AP Photo)





In this November 18, 2012, file photo released by Thailand's Bureau of the Royal Household, U.S. President Barack Obama, left, talks with Thai King Bhumibol Adulyadej at Siriraj Hospital in Bangkok. (Photo by Bureau of the Royal Household via AP Photo)





Thai King Bhumibol Adulyadej lights a candle in honour of his his father, Prince Mahidol Adulyadej, before his departure from Siriraj Hospital in Bangkok August 4, 2006. (Photo by Chaiwat Subprasom/Reuters)





In this June 9, 2006, file photo released by the Thai Government Public Relations Department, Thailand King Bhumibol Adulyadej acknowledges the crowd in Bangkok during the celebrations of the 60th anniversary of his accession to the throne. (Photo by Thai Government Public Relations Department via AP Photo)