Question: What is the birth date of this Tyrolean mountaineer, agricultural scientist, geographer, and cartographer who played the husband of Lhak[a Tsamchoe in Seven Years in TIbet?

Context articles: Sigmundskron Castle
Lhakpa Tsamchoe
Ram Badan Singh
Rajendra Singh Paroda
Peter Aufschnaiter
Heinrich Harrer
List of ski descents of Eight-Thousanders
Seven Years in Tibet
Thomas D. Singleton
Johann Santner

Sigmundskron Castle (German: "Schloss Sigmundskron" , Italian: "Castel Firmiano" ) is an extensive castle and set of fortifications near Bolzano in South Tyrol.
 Today its ruins house the fourth mountain museum established by the South Tyrolean mountaineer, Reinhold Messner.
 On 9 June 2006 the "MMM" (Messner Mountain Museum Firmian) was opened in this fortified castle dating to the Late Middle Ages.
Lhakpa Tsamchoe (born 1972) is an Indian born Tibetan actress.
 She is the first Tibetan woman ever to break into mainstream film; most famous for starring alongside Brad Pitt and David Thewlis in the 1997 Hollywood blockbuster "Seven Years in Tibet", in which she played Pema Lhaki, a Tibetan tailor and wife of Austrian mountaineer, Peter Aufschnaiter.
Ram Badan Singh is an Indian agricultural scientist, academic and the chancellor of the Central Agricultural University.
 He is the president of the National Academy of Agricultural Sciences.
 An alumnus of the College of Agriculture and Life Sciences of the New York State University and a holder of a doctoral degree in genetics, he is a former assistance director of the Food and Agricultural Organization and a former regional representative for Asia-Pacific region of the organization.
 He served as a member of the "National Commission on Farmers" and as the chairman of the Agricultural Scientist Recruitment Board, a Government of India agency.
 He is an elected fellow of the National Academy of Sciences, India and the National Academy of Agricultural Sciences and a recipients honors such as Banaras Hindu University Distinguished Alumnus Award, Lal Bahadur Shastri Memorial International Scientist Award, Dr. Zhu Shoumin International College of Nutrition Award and CALS Distinguished Alumnus Award.
 The Government of India awarded him the third highest civilian honour of the Padma Bhushan, in 2003, for his contributions to science.
Dr. Rajendra Singh Paroda (born 1942 in Ajmer, Rajasthan) is an Indian agricultural scientist.
 He is a former Director General of the Indian Council of Agricultural Research (ICAR) and Secretary, Department of Agricultural Research and Education (DARE), Government of India.
 He was General President of the Indian Science Congress Association during 2000-2001 and was the President of National Academy of Agricultural Sciences (NAAS) from 1998-2000.
 He was elected as the first Chairman of the Global Forum on Agricultural Research (GFAR), FAO, Rome from 1998-2001.
 He is also serving as Executive Secretary of the Asia Pacific Assisiation of Agricultural Research Institutions (APAARI) based at FAO Regional Office, Bangkok since 1992.
 He also served as Chairman, Board of Trustees, ICRISAT, Hyderabad, member of IRRI Board, Los Banos, Philippines and member of Advisory Council of Australian Centre for International Agricultural Research (ACIAR), Canberra, and the Commonwealth Agriculture Bureau International (CABI), London.
Peter Aufschnaiter (2 November 1899 – 12 October 1973) was a Tyrolean mountaineer, agricultural scientist, geographer, and cartographer.
 His experiences with fellow climber Heinrich Harrer during World War II were depicted in the 1997 film "Seven Years in Tibet".
Heinrich Harrer (] ; 6 July 1912 – 7 January 2006) was an Austrian mountaineer, sportsman, geographer, and author.
 He is best known for being on the four-man climbing team that made the first ascent of the North Face of the Eiger in Switzerland, and for his books "Seven Years in Tibet" (1952) and "The White Spider" (1959).
Albeit arbitrary, the mountaineering community groups Earth's 14 mountains with summits exceeding 8000 m , referred to as eight-thousanders, as a special category of peaks defining the "top of the world."
 Only an elite group of mountaineers can claim to have summited all 14 peaks and many have perished trying.
 (See eight-thousanders for current list.)
 Particularly since 1978 when Italian expeditionist Reinhold Messner became the first to have climbed all 14 8000m peaks, summiting the eight-thousanders has become the ultimate goal for many high altitude mountaineers.
 Similarly, the ski-mountaineering community has set its sights on skiing from the summits of the "eight-thousanders."
 In a 2007 interview for the film "Skiing Everest", the Tyrolean mountaineer and skier, Hans Kammerlander articulated the challenge for the ski-mountaineering community: "Almost all peaks have been reached, almost all walls have been climbed.
 But seldom have the walls been skied down... It would be a lovely project if I could see someone who could ski all 8,000m peaks."
Seven Years in Tibet: My Life Before, During and After (1952; German: "Sieben Jahre in Tibet.
 Mein Leben am Hofe des Dalai Lama" ; 1954 in English) is an autobiographical travel book written by Austrian mountaineer Heinrich Harrer based on his real life experiences in Tibet between 1944 and 1951 during the Second World War and the interim period before the Communist Chinese People's Liberation Army invaded Tibet in 1950.
Thomas Day Singleton (Birth date unknown – November 25, 1833) was a United States Representative from South Carolina.
 He was born near Kingstree, South Carolina but his birth date is unknown.
Johann Santner (21 April, 1840 in Sankt Jakob in Defereggen - 21 May, 1912 in Bozen) was a Tyrolean mountaineer and first climber to reach the summit of the Santnerspitze, which was later given his name in his honor, of the Schlern on 2 July, 1880.
 He also was the first climber on the Gran Cir.