Bajrakitiyabha
พัชรกิติยาภา
Princess Rajasarini Siribajra
Bajrakitiyabha in 2013
Ambassador of Thailand to Austria, Slovakia, and Slovenia
In office
4 September 2012 – 1 October 2014
Nominated by Yingluck Shinawatra
Prime Minister
  • Yingluck Shinawatra
  • Niwatthamrong Boonsongpaisan (acting)
  • Prayut Chan-o-cha
Preceded by Somsak Suriyawong
Succeeded by Attayut Srisamut
Born (1978-12-07)7 December 1978
Bangkok, Thailand
Died 11 June 2026(2026-06-11) (aged 47)
Bangkok, Thailand
Names
Bajrakitiyabha Narendira Debyavati
House Mahidol
Dynasty Chakri
Father Vajiralongkorn (Rama X)
Mother Soamsawali Kitiyakara
Religion Theravada Buddhism
Occupation
  • Ambassador
  • attorney
Signature
Military career
Allegiance Kingdom of Thailand
Branch
  • Royal Thai Army
  • Royal Security Command
Service years
2021–2022
Rank
General
Commands
  • 4th Infantry Battalion, 1st Infantry Regiment
  • Royal Security Command

Bajrakitiyabha, Princess Rajasarini Siribajra[a] (7 December 1978 – 11 June 2026), also known as Princess Bha,[b] was a member of the Chakri dynasty of Thailand. She was the eldest child of King Vajiralongkorn, and the only one born to his first wife Princess Soamsawali. She was born during the reign of her grandfather, King Bhumibol Adulyadej, and was his eldest grandchild. She also served as an Ambassador of Thailand to Austria, Slovakia, and Slovenia in the government of Yingluck Shinawatra.

A lawyer, Bajrakitiyabha was known for her "Kamlangjai" or "Inspire" project that focused on incarcerated Thai women, including pregnant inmates and their babies, to ensure they are given adequate assistance to reenter society upon release. Bajrakitiyabha was crucial in the United Nations adopting the "Bangkok Rules", which became the first set of universal guidelines addressing the treatment of women in the justice system. These efforts made her popular among the Thai public and cemented her as a potential heir to the throne.[3]

On 14 December 2022, she collapsed as a result of a heart condition while out walking her dogs. After a coma lasting three and a half years, she died on 11 June 2026 from complications. Her illness and death created uncertainty within the Thai line of succession as she was seen as a likely successor to her father.[4][5]

Early life and education

Bajrakitiyabha was born on 7 December 1978 at Amphorn Sathan Residential Hall, Dusit Palace, in Bangkok.[5] She was the eldest child and first daughter of Vajiralongkorn and his first wife princess Soamsawali.[4]

Bajrakitiyabha studied at the all-girls Rajini School when she was in elementary and junior high school.[6] She moved to England and began her secondary education first at Heathfield School in Ascot.[7] She subsequently then finished her secondary education at the Chitralada School within Dusit Palace.[6]

Bajrakitiyabha received an LL.B. degree from Thammasat University, as well as a B.A. degree in international relations from Sukhothai Thammatirat University, both in 2000. She subsequently obtained an LL.M. degree from Cornell Law School in 2002 and a J.S.D. degree from Cornell University in 2005.[8][9] At Cornell, she also used the name Patty.[8]

On 12 May 2012, she was awarded an honorary LL.D. degree from IIT Chicago-Kent College of Law.[10]

Bajrakitiyabha was the only child given the title of Kromma Luang, the 3rd level of the Krom ranks by her father. She was the Princess Rajasarini Siribajra (Krom Luang Rajasarini Siribajra).[11]

Career

Princess Bajrakitiyabha at Headquarters of the United Nations in 2010

In 2002, she was a summer legal intern at Baker McKenzie's Washington, D.C., office.[12] On completion of her legal education, Princess Bajrakitiyabha worked briefly at the Thai Permanent Mission to the United Nations, in New York, before returning to Thailand. In September 2006, she was appointed Attorney in the Office of the Attorney General in Bangkok, and was then appointed to Office of the Attorney General of Udon Thani Province.[13]

From 2012 to 2014, during the government of Yingluck Shinawatra, she was the Thai ambassador to Austria, Slovenia and Slovakia until she returned to a post at the Office of the Attorney General.[3][4]

In 2017, Bajrakitiyabha was appointed as ​the goodwill ambassador for ​the rule of ⁠law in Southeast Asia by the United Nations Commission on Crime Prevention and Criminal Justice.[14]

On 3 February 2021, the princess was transferred from her position as an attorney in the Office of the Attorney General to the Royal Security Command in the position of Chief of Staff of The King's Close Bodyguard Command and bestowed the rank of general.[15][16]

Work on women in the penal system

Bajrakitiyabha in Austria in 2013

The princess was instrumental in prodding the Thai government to submit a resolution to the Commission on Crime Prevention and Criminal Justice, a subsidiary body of the UN Economic and Social Council, that detailed the vulnerability of women incarcerated in a system built principally for men. Her efforts were to lead to the United Nations adoption of the "Bangkok Rules",[17] the first set of universal guidelines addressing the treatment of women in the justice system.[18]

Bajrakitiyabha ran the "Kamlangjai" or "Inspire" project, which reaches out to incarcerated Thai women, including pregnant inmates and their babies, and intends to ensure that those female and pregnant inmates are given adequate assistance to prepare them to reenter society upon release.[19][20] She was also working on "Enhancing lives of Female Inmates" (ELFI), a project which proposes new rules for the treatment of women prisoners and non-custodial measures for women offenders as a supplement to the 1955 Standard Minimum Rules for the Treatment of Prisoners (SMRTP).[21] Because of her Kamlangjai project, Bajrakitiyabha was noted as an influential legal advocate and became popular among the Thai public.[4][22] Her work made her popular among the public, while some analysts noted that it set her apart from other royals, as they were seen as distant from the Thai people.[3]

Potential heir

Until her comatose state in 2022, Bajrakitiyabha was considered to be the heir to the Thai throne.[4] The BBC described her as playing a "pivotal role" in an unclear line of succession.[5] While Prince Dipangkorn Rasmijoti, the youngest of the king's children, is heir presumptive due to males taking precedence in Thailand's line of succession, his learning disability and Bajrakitiyabha's public service career did cause speculation that she was set to hold an important role in any future succession.[4][22][23][24] She was also speculated to be a potential Regent of Thailand in the event a young monarch ascended to the throne.[22] The New York Times saw Bajrakitiyabha as potentially Thailand's first ruling queen.[4] Due to her pedigree, as she was the only child born to the king and Princess Soamsawali, who is also a cousin of the king, Bajrakitiyabha was considered a strong contender to be heir to the throne.[4]

Coma and death

Announcement of the Bureau of the Royal Household concerning the death of Bajrakitiyabha

In December 2022, the Bureau of the Royal Household announced that Bajrakitiyabha had been hospitalised following a collapse while out walking her dogs on 14 December.[25] The palace confirmed that it was due to a severely irregular heartbeat caused by a mycoplasma infection in her heart, a bacterial infection usually associated with pneumonia.[5][26][27] She had been training her dogs for the Thailand Working Dog Championship 2022 organised by the Royal Thai Army.[28] Bajrakitiyabha was initially taken to Pak Chong Nana Hospital and then transferred to the King Chulalongkorn Memorial Hospital.[29]

Thai scholar Pavin Chachavalpongpun noted that Bajrakitiyabha's comatose state could create a royal succession crisis as she was "widely assumed" to succeed to the throne.[24] Her condition proved severe and she never regained consciousness.[22][30] Her father's New Year's greeting card for 2023 showed him and Queen Suthida garbed in somber black, which some noted spoke to the severity of Bajrakitiyabha's condition.[22]

As the first official update regarding her condition since 2023, the Bureau of the Royal Family announced in August 2025 that Bajrakitiyabha had been diagnosed with a severe bloodstream infection; doctors had to administer antibiotics to keep her blood pressure stable. She was still supported by equipment for her lung and kidney functions.[31][32] In October 2025, her grandmother, Queen Sirikit, died at the same hospital where Bajrakitiyabha was being treated.[33]

In May 2026, Bajrakitiyabha developed a stomach infection, which caused her blood pressure to drop.[4] Her condition later worsened as she developed colitis, low blood pressure, arrhythmias and blood clotting disorders.[34][35] A month later, Bajrakitiyabha died on 11 June at 7:48 pm local time, at the age of 47.[4][5] Her death was announced by the Bureau of the Royal Household the following day.[22]

Aftermath and funeral

Bajrakitiyabha's coffin was carried in a gray 2001 Volkswagen Caravelle T4 from King Chulalongkorn Memorial Hospital to the Grand Palace.

Her death left the Thai line of succession unclear as Bajrakitiyabha was previously considered a top contender to succeed the king.[5][36] The New York Times speculated that Bajrakitiyabha would have been on track to be Thailand's first ruling queen, while also saying that she would have been able to "restore respect" to the monarchy amid its growing unpopularity.[4] Analysts believed that Bajrakitiyabha was poised to rule either as queen proper or queen regent for her youngest brother Dipangkorn Rasmijoti.[5] The Nikkei called Bajrakitiyabha's death as "one of the greatest tragedies in the Chakri dynasty", while also noting the complications it would bring to the succession question.[37]

In a televised speech, Prime Minister Anutin Charnvirakul called Bajrakitiyabha "a pride of Thailand" and said that her work will remain "a moral legacy for the nation, a guiding light for generations of Thais".[3]

The government declared fifteen days of national mourning.[38] Mourners gathered outside King Chulalongkorn Memorial Hospital.[39] News websites switched to black and white while bus-ticket collectors wore black ribbon pins. Her funeral procession was on 13 June, starting with the transfer of her remains from the hospital to the Piman Rattaya Throne Hall in the Grand Palace.[39] Later, King Vajiralongkorn and Queen Suthida led the Buddhist funeral rites for Bajrakitiyabha.[40] Public participation included Buddhist water-pouring rituals before Bajrakitiyabha's portrait.[40]

Legacy

Bajrakitiyabha was noted for her legal and philanthropic work in Thailand. Her justice reform efforts through her Kamlangjai or "Inspire" project were said to have helped rehabilitate female convicts in the country.[41] Her efforts led to the United Nations General Assembly adopting the "Bangkok Rules" on care and conditions for female prisoners worldwide.[41] President of the Philippines Bongbong Marcos said that Bajrakitiyabha's social reforms created an "enduring legacy" that will be remembered by Thailand and "admired by the international community".[34] CNN said that Bajrakitiyabha's efforts "improved the livelihoods of female prisoners" in the country.[35] Her efforts were also a main factor for the Thai government to submit a resolution to the Commission on Crime Prevention and Criminal Justice that argued that women were vulnerable in a male-dominated prison system.[4]

The New York Times highlighted Bajrakitiyabha's popularity among the public as a crucial figure to stabilize the "wave of disillusionment" between the Thai monarchy and the public.[4] Academic Kasidit Ananthanathorn opined that Bajrakitiyabha was the monarchy's "hope [to] carry the royal family into the future".[4]

Honours and symbols

Styles of
  • Princess Bajrakitiyabha
  • Princess Rajasirini Siribajra
Reference style Her Royal Highness
Spoken style Your Royal Highness

National honours

  • Dame of The Most Illustrious Order of the Royal House of Chakri (2019)
  • Dame of the Ancient and Auspicious Order of the Nine Gems (2019)[42]
  • Dame Grand Cross of the Order of Chula Chom Klao, First Class (1991)[43][44][45][46]
  • Dame Grand Cordon of the Order of the White Elephant (2005)[47]
  • Dame Grand Cordon of the Order of the Crown of Thailand (1996)[48]
  • Dame Grand Cross of the Order of the Direkgunabhorn (1995)[49]
  • Order of Symbolic Propitiousness Ramkeerati[50][51]
  • King Rama IX Royal Cypher Medal (First Class) (1984)[52]
  • King Rama X Royal Cypher Medal (First Class) (2019)
  • Chakra Mala Medal – Medal for Long Service and Good Conduct (Military and Police) (2025)[53]

Foreign honours

  • Austria: Grand Decoration of Honour in Gold with Sash for Services to the Republic of Austria (7 October 2014)[54][55]

Symbols

  • Royal monogram of Princess Bajrakitiyabha
    Royal monogram of Princess Bajrakitiyabha
  • Royal flag of Princess Bajrakitiyabha
    Royal flag of Princess Bajrakitiyabha

Ancestry

Ancestors of Bajrakitiyabha
8. Mahidol Adulyadej, Prince of Songkla
4. Bhumibol Adulyadej, Rama IX
9. Sangwan Talapat
2. Vajiralongkorn, Rama X
10. (=12.) Nakkhatra Mangkala, Prince of Chanthaburi II
5. Sirikit Kitiyakara
11. (=13.) Bua Snivongs
1. Bajrakitiyabha, Princess Rajasarini Siribajra
12. (=10.) Nakkhatra Mangkala, Prince of Chanthaburi II
6. Adulakit Kitiyakara
13. (=11.) Bua Snivongs
3. Soamsawali, Princess Suddhanarinatha
14. Prince Bhanubandhu Yugala
7. Princess Bandhusavali Yugala
15. Soiraya Snidvongs

Notes

  1. ^ Thai: พัชรกิติยาภา นเรนทิราเทพยวดี, RTGS: Phatchara Kitiyapha Narenthira Thepphayawadi
  2. ^ Thai: พระองค์ภา, องค์ภา[1][2]

References

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  2. ^ "แถลงการณ์ "พระองค์ภา" สิ้นพระชนม์ สิริพระชันษาปีที่ 47 เปิดให้สรงน้ำพระศพ 13 มิถุนายน 69" ["Princess Bha" died at the age of 47, to be laid in state on 13 June 2026]. Thairath. 12 December 2026.
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