Thailand’s Princess Bajrakitiyabha, the eldest daughter of King Maha Vajiralongkorn and a prominent lawyer and humanitarian, died on June 11, 2026, at King Chulalongkorn Memorial Hospital in Bangkok after spending more than three years in a coma. She was 47 years old.

The Bureau of the Royal Household announced her death on Friday, June 12, 2026, stating that the princess died peacefully at 7:48 p.m. Thursday evening. Her condition had deteriorated in late May 2026 due to an abdominal infection tied to inflammation of her large intestine, along with low blood pressure, irregular heartbeat, and blood clotting disorders.

“This loss is not merely bad news announced to the people, but an immeasurable grief in the hearts of the entire nation,” Prime Minister Anutin Charnvirakul said in a televised speech. He called the princess “a pride of Thailand,” adding that her dedication to creating a compassionate, fair, and equitable society would serve as an enduring inspiration for Thailand and its future citizens.

The Thai government declared a period of national mourning immediately following the announcement. The royal palace said her remains would be placed for public viewing at the Grand Palace in Bangkok, with a funeral to be held “with the highest honors according to royal tradition.”

The Incident That Changed Everything

Princess Bajrakitiyabha’s tragic medical crisis began on December 14, 2022, while she was training her dogs for the Thailand Working Dog Championship, an event organized by the Royal Thai Army. While working with the animals in Nakhon Ratchasima province in northeastern Thailand, she suddenly lost consciousness due to a heart condition.

She was initially taken to a local hospital before being transported by helicopter to Bangkok for advanced medical care. Despite the efforts of medical teams at King Chulalongkorn Memorial Hospital, she never regained consciousness.

For most of the three and a half years that followed, the royal palace released few updates about her condition. The first substantial statement came in August 2025, when officials revealed she had developed a severe bloodstream infection and was being kept alive with mechanical support for her lungs and kidneys. The palace initially stated she had experienced a serious irregular heartbeat caused by inflammation after contracting a mycoplasma infection, a bacterial infection typically associated with pneumonia.

An early signal of the severity of her condition came with King Vajiralongkorn’s New Year’s greeting card for 2023, which showed the king and Queen Suthida dressed in somber black. Many Thais interpreted this as quiet confirmation that the princess’ prognosis was grim.

Outside the hospital on Friday, small groups of mourners gathered to pay their respects. Pattamaporn Kaewkityakorn, who had arrived Thursday and spent the night at the hospital, told reporters, “I know she was sick, but I wished there were a miracle. I was saddened and shocked.”

The Lawyer Princess

Born on December 7, 1978, Princess Bajrakitiyabha was the only child of then-Crown Prince Vajiralongkorn and his first wife, Princess Soamsawali. Unlike many royals who rely solely on their titles, she built an impressive professional resume that earned her the nickname “the lawyer princess” among Thai citizens. After attending Heathfield School in Ascot, England, she returned to Thailand to complete her secondary education. She earned a law degree from Thammasat University and a second bachelor’s degree in international relations in 2000. She then pursued advanced studies in the United States at Cornell Law School in Ithaca, New York, earning a master’s degree in law in 2002 and a doctorate in 2005. Her dissertation focused on protecting the rights of the accused. During her time in the United States, she completed a summer legal internship at a major law firm’s Washington, D.C., office. After graduating, she served briefly at Thailand’s United Nations mission in New York City during 2005 and 2006 before returning home to serve as a public prosecutor in Bangkok. Her career later shifted to diplomacy, and she was appointed Thailand’s ambassador to Austria from 2012 to 2014, also serving concurrently as ambassador to Slovakia and Slovenia. In 2013, she told the Associated Press that without rule of law and a good justice system, chaos would prevail.

This philosophy guided much of her work throughout her life. Following her death, scholarships were established at Cornell Law School in her name, along with an initiative enabling legal scholars to study in both Thailand and Cornell.

Champion for Women Behind Bars

Princess Bajrakitiyabha’s most enduring legacy may be her work on behalf of incarcerated women. In 2006, she launched Kamlangjai, which translates to “Inspire,” a project focused on women prisoners, particularly pregnant inmates and mothers raising young children inside correctional facilities. The program aimed to provide genuine rehabilitation opportunities and prevent the cycle of recidivism. Two years after starting Kamlangjai, she initiated a second program promoting international standards for the treatment of women prisoners. Her efforts culminated in 2010 when the United Nations General Assembly adopted a comprehensive set of standards for women prisoners, now known worldwide as the “Bangkok Rules.”

Beyond her prison reform work, Princess Bajrakitiyabha was appointed a UN goodwill ambassador for the rule of law in Southeast Asia in 2017, and also served as a UN goodwill ambassador for the Office on Drugs and Crime. She ran a Thai Red Cross volunteer group that assisted flood and disaster victims, and founded an organization providing job training to former inmates to help them successfully reintegrate into society.

Questions of Succession

Princess Bajrakitiyabha’s death opens renewed questions about Thailand’s royal succession. King Maha Vajiralongkorn, now 73 years old, has been married four times and has seven children, though only three hold royal titles.

Under Thai law, sons take precedence in the line of succession, which makes Prince Dipangkorn Rasmijoti, the youngest of the king’s children, the presumptive heir. However, a constitutional change opened the door for a female ruler, and Princess Bajrakitiyabha’s extensive public service and legal expertise had led to widespread speculation that she might play a crucial role in any future succession, possibly as regent to a young monarch.

King Vajiralongkorn has not formally named a successor, and the princess’ death leaves the question of Thailand’s royal future more uncertain than ever.

Princess Bajrakitiyabha was known to ordinary Thais as someone who genuinely cared about the rule of law and justice for the most vulnerable members of society. Her work touched thousands of lives, from women struggling to rebuild after incarceration to legal scholars studying at Cornell. The grief expressed across Thailand reflects not just the loss of a princess, but of a dedicated public servant who used her position to create lasting change.

Sources:

https://dailyusanews.com/thai-princess-bajrakitiyabha-dies-at-47-after-years-in-coma/
https://www.cbc.ca/news/world/thai-princess-bajrakitiyabha-dead-9.7232854
https://www.dw.com/en/thai-princess-bajrakitiyabha-dies-after-years-in-coma/a-77515096
https://nypost.com/2026/06/12/world-news/thai-princess-bajrakitiyabha-dead-at-47-after-nearly-4-years-in-coma-palace-says/