Her Royal Highness Princess Galyani Vadhana Krom Luang Naradhiwas Rajanagarindra is the eldest child of Prince of Songkla and Princess Mother (Sangwan). Prince Mahidol has been proclaimed "The Father of Thai Public Health" and the Princess Mother "The Mother of Thai Nursing" in recognition of their selfless and dedicated contributions to the Thai people in the field of public health. Her Royal Highness was born on Sunday 6 May 1922 in London, England. She has two younger brothers, namely King Ananda Mahidol and King Bhumibol, the King of Thailand. She graduated with a bachelor's degree in science majoring in chemistry from the University of Lausanne, Switzerland, in 1948.

Her Royal Highness Princess Galyani is keenly interested in and actively supports activities in the development of scientific and mathematical talents of school children. She recognizes that school education is the foundation for higher education. She particularly has been the patroness in the project to send students to participate in the International Science and Mathematics Olympiads since Thailand first participated in the 30th International Mathematics Olympiad in Germany in 1989 until the present time. Her Royal Highness realizes that competition at the international level will help develop and promote students' potentials as well as science and mathematics education in secondary schools to reach the international standard, which will bring long-term benefits to the country. She therefore generously provides funding and moral support, giving much attention and following the implementation of the activity closely. For this reason Her Royal Highness has established The Promotion of Academic Olympiads and Development of Science Education Foundation under Her Royal Highness's Patronage (POSN) with the objectives of supporting and promoting the development of science and mathematics education in schools throughout the country to reach the international standard. The activities of the POSN Foundation are a means of sustainable human resources development and Thailand will benefit from a larger number of more talented students in the selection for the country's representatives to participate in international academic competitions.