Princess Hemvadi (Thai: พระเจ้าบรมวงศ์เธอ พระองค์เจ้าเหมวดี), informally known as Sadet Phra Ong Hem, was the youngest daughter of King Chulalongkorn (Rama V) and Hem Amatayakul (daughter of Phraya Thammasarnniti Wichitphakdi (Plub Amatayakul). She was born on 12 January 1892 (1893 according to the modern calendar). Originally named Princess Mandhanabhavadi, her father, King Chulalongkorn, renamed her Princess Hemvadi on 8 January 1898 (1899 according to the modern calendar) when she was six years old.ราชกิจจานุเบกษา, พระราชทานพระนามพระเจ้าลูกเธอ , เล่ม 15, ตอน 43, 22 มกราคม ร.ศ. 117, หน้า 447
Princess Hemavadi resided at Ratchathat Palace, which is currently the site behind the Anantara Siam Bangkok Hotel on Ratchadamri Road, Bangkok.
She was one of the few daughters of King Rama V who lived through the reign of King Bhumibol Adulyadej (Rama IX) and was among the last surviving members of her generation. The Princess died on 17 October 1972 from renal failure at the age of 80. Their Majesties King Bhumibol Adulyadej and Queen Sirikit presided over her royal cremation ceremony on 28 February 1973 at the Royal Crematorium, Wat Debsirindrawas Ratchaworawiharn.ราชกิจจานุเบกษา, หมายกำหนดการ ที่ ๔/๒๕๑๖ บำเพ็ญพระราชกุศลออกพระเมรุและพระราชทานเพลิงพระศพพระเจ้าบรมวงศ์เธอ พระองค์เจ้าเหมวดี ณ พระเมรุวัดเทพศิรินทราวาส พุทธศักราช ๒๕๑๖, เล่ม 90, ตอน 19ง, 27 กุมภาพันธ์ พ.ศ. 2516, หน้า 559
Royal Decorations
Dame of The Most Illustrious Order of the Royal House of Chakri: received 9 May 1950 Dame Cross of the Most Illustrious Order of Chula Chom Klao (First class): received 2 May 1950
Ancestry +Ancestor of Princess Hemvadi Princess Hemvadi Father:Chulalongkorn, King Rama V of Siam Paternal Grandfather:Mongkut, King Rama IV of Siam Paternal Great-grandfather:Buddha Loetla Nabhalai, King Rama II of Siam Paternal Great-grandmother:Queen Sri Suriyendra Paternal Grandmother:Queen Debsirindra Paternal Great-grandfather:Prince Sirivongse, the Prince Matayabidaksa Paternal Great-grandmother:Mom Noi Sirivongs na Ayudhya Mother:Chao Chom Manda Ham Amatayakul Maternal Grandfather:Lord (Phraya) Dhammasarnniti Vichitbakdi Maternal Great-grandfather:unknown Maternal Great-grandmother:unknown Maternal Grandmother:Saeng Amatayakul Maternal Great-grandfather:unknown Maternal Great-grandmother:unknown
References
Royal Command changing name of Royal daughter Princess Mandhana Bhavadi into Hemvadi