Khun Poom Jensen (; ; ; 16 August 1983 – 26 December 2004), born Bhumi Jensen (also spelled Poomi Jensen, ; ; ), was a grandson of King Bhumibol Adulyadej of Thailand, after whom he was named. He was also a nephew of Vajiralongkorn, the current King of Thailand. He was the only son of the King's eldest daughter, Princess Ubolratana Rajakanya, and her American (former) husband Peter Ladd Jensen. Biography Poom, as he was commonly known, had autism and his status helped heighten awareness of the condition in Thailand. He attended Kasetsart University Laboratory School in Bangkok. He spent his childhood in San Diego County, California, where he graduated from Torrey Pines High School. Poom moved with his mother to Thailand in July 2001, after his graduation. Death and legacy Jensen drowned after being struck by the Indian Ocean tsunami on 26 December 2004, while he and his family were on holiday at the La Flora Resort hotel in Khao Lak. His body was discovered on the beach the following day. His uncle, then-Crown Prince Maha Vajiralongkorn, identified his body and flew the rest of the family to Bangkok. On 30 April 2005, he received a royal funeral attended by his grandfather the King and virtually every member of the Royal Family. His mother, Princess Ubolratana, established the Khun Poom Foundation in his memory, to aid children with autism and other learning disabilities. She also founded "To Be Number One Project" to campaign against drug usage among teenagers. Honors King Rama IX Royal Cypher Medal (First Class). Police rank Police Sub Lieutenant Volunteer Defense Corps of Thailand rank Volunteer Defense Corps Major Ancestry Notes References 1983 births 2004 deaths American people of Thai descent American people of Danish descent Deaths by drowning Poom Jensen Natural disaster deaths in Thailand People from San Diego People on the autism spectrum Royalty and nobility with disabilities Poom Jensen Poom Jensen Victims of the 2004 Indian Ocean earthquake and tsunami Poom Jensen