Princess Soamsawali of Thailand (Thai: พระเจ้าวรวงศ์เธอ พระองค์เจ้าโสมสวลี พระวรราชาทินัดดามาตุ; RTGS: Som Sawali; Literal: "Soamsawali, the Princess Mother of the King's First Grandchild"), née Mom Luang Soamsawali Kitiyakara ( born 13 July 1957) is a member of Thai Royal Family, and is the former wife of her first cousin, Crown Prince Maha Vajiralongkorn. She was titled "the Princess Mother of the King's First Grandchild" after her divorce with the Crown Prince in 1991. She is also niece of Queen Sirikit.
Princess Soamsawali was born on 13 July 1957 at Guy's Hospital in London, England, United Kingdom. She is the eldest child of Mom Rajawongse Adulyakit Kitiyakara (Her father was a elder brother of Queen Sirikit of Thailand) and Thanpuying Bandhu Savali Kitiyakara (née Princess Bandhu Savali Yugala). She also has one younger sister Mom Luang Sarali Kitiyakara, born 8 April 1966.
Her father was the second child of Prince Nakkhatra Mangkala Kitiyakara, the Prince of Chanthaburi II and Mom Luang Bua Sanidvongs. Her mother was daughter of Prince Bhanubandhu Yugala and Mom Luang Soiraya Sanidvongs.
She first attended the primary level at Chitralada School, then moved to Chiang Mai with her father when he was a judge at the Chiang Mai Court. She moved to study at Regina Coeli College, the all-girls academy in Chiang Mai in 1967.
On January 3, 1977, at the age of 20, she married her first cousin, Maha Vajiralongkorn, the only son of King Bhumibol Adulyadej. After their marriage, her official title became Her Royal Highness Princess Soamsawali, Royal Consort of His Royal Highness Crown Prince Maha Vajiralongkorn of Thailand. The couple had one daughter, Princess Bajrakitiyabha of Thailand, born on 7 December 1978. The marriage ended in divorce in 1991 after the citing of numerous inconsolable differences.
The Princess Niece
After her divorce of the Crown Prince, the King, by virtue of a royal proclamation, gave her a new title on 12 August 1991. Her official full title became Phravararajatinuddamat, meaning the mother of the king's first grandchild (translate in English as The Princess Mother of the King's First Grandchild).
Princess Soamsawali had adopted daughter, Siraphatchara Sophatcharamani or Bai Phlu.
From : www.wikipedia.org