Wikipedia
Hemvadi
Hemvadi (; ; 12 January 1892 – 17 October 1972), was the Princess of Siam (later Thailand. She was a member of Siamese Royal Family. She is a daughter of Chulalongkorn, King Rama V of Siam.
Her mother was The Noble Consort (Chao Chom Manda) Hem Amatayakul (daughter of Lord (Phraya) Dhammasarnniti Vichitbakdi). After she was born, she was given the name from her father as Mandhana Bhavadi . Later her father changed her name shorter into Hemvadi, on 8 January 1899, while she was 6 years old.
She lived in the Grand Palace all the rest of her life, and died on 17 October 1972, at the age of 80.