Title: Dhasanawalaya Sornsongkram
Content:  Thanpuying Dhasanawalaya Sorasongkram has been a lecturer in the Faculty of Economics, Chulalongkorn University. She received her rank as Thanpuying on 5 May 1986. She was considered to be the closest grandchild of Srinagarindra, the Princess Mother.
Title: Dhasanawalaya Sornsongkram
Content:  Than Phu Ying Dhasanawalaya Sornsongkram (ทัศนาวลัย ศรสงคราม; ; ), née Dhasanawalaya Ratanakul Serireongrit (ทัศนาวลัย รัตนกุล เสรีเริงฤทธิ์; ; born 11 November 1945 in Switzerland), is the only daughter of Galyani Vadhana, Princess of Naradhiwas and niece of King Bhumibol Adulyadej and elder cousin of King Vajiralongkorn (Rama X).
Title: Dhasanawalaya Sornsongkram
Content:  Dhasanawalaya Ratanakul Serireongrit was born on November 11, 1945 in Switzerland. She is the only daughter of Galyani Vadhana, Princess of Naradhiwas and Colonel Aram Ratanakul Serireongrit, son of General Charun Rattanakun Seriroengrit. At the age of 6, she returned to Thailand with her uncle, King Bhumibol and her aunt-in Law, Queen Sirikit, by ship. After arriving in Thailand, she continued her education at Mater Dei School, Triam Udom Suksa School and Faculty of Arts, Chulalongkorn University. After graduation, she continued her studies in Switzerland.
Title: Dhasanawalaya Sornsongkram
Content:  During her time studying in Switzerland, she met Sinthu Sornsongkram, who was a civil servant at the Royal Thai Embassy in Bern. They married on 12 November 1973. They have a son, Army Captain Jitat Sornsongkram.
Title: K. Dasan
Content:  Son of Shri Kunhiraman and Smt. Kalliani, born at Viyyur, Quilandy Taluk, on 1st December 1952. He studied till S.S.L.C. He was married to Smt. E. Sulochana, the couple have a son and a daughter.
Title: Alaka Das
Content:  Das' father was a classical musician, Pandit Surendra Narayan Das. From father, she learnt all the basics of music. Her uncle is Sudhin Das from whom she learnt Nazrul Sangeet for a few days. Her younger brother Manas Kumar Das, Subrata Das and Tapas Kumar Das are also singers of Nazrul Sangeet in Bangladesh.
Title: Dhasani Nonglaksana Svastivatana
Content:  Princess Dhasani Nonglaksana (ทัศนีนงลักษณ์; complete title: Her Serene Highness Princess (Mom Chao) Dhasani Nonglaksana หม่อมเจ้าทัศนีนงลักษณ์ สวัสดิวัตน์; ) is a Princess of Siam, a member of Siamese royal family, and a member House of Svastivatana, a royal house which originated by Her father and descends from Chakri Dynasty and half-sister of Queen Rambhai Barni of Siam.
Title: Bidhu Bhusan Das
Content:  Das and his wife, Prabhat Nalini Das, had three children, including Oopali Operajita. Das's maternal aunt was the leader, feminist, writer and social activist Sarala Devi. Das's maternal uncle, Nityanand Kanungo, was a prominent Indian politician from the state of Odisha.
Title: Soamsawali
Content:  Princess Soamsawali, the Princess Suddhanarinatha (โสมสวลี,, ), born Mom Luang Soamsawali Kitiyakara (โสมสวลี กิติยากร; ; on 13 July 1957), is a member of the Thai royal family, and is the former wife of her first cousin King Vajiralongkorn. She was titled "the Princess Mother of the King's First Grandchild" after her divorce with the then crown prince in 1991. She is also a niece of Queen Sirikit.
Title: Shushama Das
Content:  Das was born to Rashiklal Das and Bidyamoyi Das. She was married to Prannath Das in 1946. Her younger brother Ramkanai Das was also an Ekushey Padak-winning musician.

Question: Who is the mother of Dasanavalaya Sorasongkram?
Answer: Galyani Vadhana.
Galyani Vadhana, Princess of Naradhiwas.