Thailand's Princess Bajrakitiyabha Dies at 47 After Nearly Four Years in Coma, Raising Succession Questions

Bangkok, Thailand – Thailand's Princess Bajrakitiyabha Mahidol, the eldest child of King Maha Vajiralongkorn, has died at the age of 47 after nearly four years in a coma, the palace announced, triggering questions about the royal succession in one of the world's most strictly regulated monarchies.

The princess, known in Thailand as Princess Bha, had been hospitalized since December 2022 when she became gravely ill after suffering heart problems while training her dogs. There had been few updates regarding her health since her hospitalization, though in early May the palace said her condition had worsened due to multiple infections in several organs, and physicians were unable to stabilize her irregular heart rate.

In April, physicians discovered a stomach infection that led to inflammation in her intestines, causing her blood pressure to fall and her heartbeat to become irregular. Her kidney function and breathing had been supported through medical equipment, palace statements said.

A Life of Service and Scholarship

Born in 1978 to then-Crown Prince Vajiralongkorn and his first wife and cousin, Princess Soamsawali, Bajrakitiyabha held several distinguished degrees, including a doctorate from Cornell University in the United States. She was widely regarded as one of the most educated and capable members of the royal family.

Throughout her career, the princess served in numerous official capacities, including:

• Ambassador to Austria, representing Thailand in diplomatic relations
• Position in the attorney general's office, focusing on legal and judicial matters
• Role in the royal security command, overseeing protective operations
• Goodwill ambassador to the United Nations Office on Drugs and Crime (UNODC)
• Advocate for the rights of female prisoners, a cause she championed throughout her life

Her work on prisoner rights and drug crime prevention earned her international recognition and respect from human rights organizations.

The Succession Question

The princess's death raises sensitive questions about succession – a topic rarely discussed publicly in Thailand due to the kingdom's strict lese majeste laws. Criticism of the royal family can lead to up to 15 years in prison on a single charge, making open debate about the monarchy's future virtually impossible.

Bajrakitiyabha was considered by many analysts to be a well-suited heir to the throne, though this was never officially addressed by the palace. Her combination of academic credentials, diplomatic experience, and public service made her a natural candidate for future leadership.

Thailand has never had a ruling queen. Some had speculated that Bajrakitiyabha may have acted as a regent for her younger half-brother, Prince Dipangkorn, who is reported to have learning difficulties, or potentially become queen herself – a historical first for the nation.

The Royal Family: A Complex Web

King Maha Vajiralongkorn has married four times and has seven children. Bajrakitiyabha was one of only three of his children to hold a royal title, along with:

• Princess Sirivannavari (age 38) – A fashion designer and equestrian athlete
• Prince Dipangkorn Rasmijoti (age 20) – The king's youngest son, reported to have learning difficulties

The king's four other sons have lived abroad since the mid-1990s after he announced his divorce from their mother, Sujarinee (formerly an actor), publicly accusing her of adultery. Their sister, Princess Sirivannavari, was returned to Thailand and raised as a member of the royal family.

The estranged sons traveled to Thailand for the first time in decades in 2023 and made several visits to the country until, in 2025, they claimed they had been denied entry to Thailand – a development that added further complexity to succession questions.

The king divorced Bajrakitiyabha's mother, Princess Soamsawali, in 1991, but she retains a royal title and remains a key member of the monarchy. Dipangkorn's mother, Srirasmi Suwadee, was stripped of her royal title after her family was accused of corruption.

A Nation in Mourning

News of the princess's death has sent shockwaves through Thai society, where the monarchy holds an almost sacred position. The palace announced that official mourning periods and ceremonies would be observed, with government offices instructed to fly flags at half-mast.

Prime Minister Srettha Thavisin expressed condolences on behalf of the government, praising the princess's dedication to public service and her work on behalf of marginalized communities.

"Princess Bajrakitiyabha devoted her life to the service of the Thai people," the prime minister said in a televised address. "Her work with female prisoners and her advocacy for justice will be remembered as a lasting legacy."

International Reaction

Foreign governments and international organizations have begun expressing condolences. The United Nations issued a statement honoring the princess's work as a goodwill ambassador for the UN Office on Drugs and Crime.

"Princess Bajrakitiyabha was a passionate advocate for justice and human dignity," a UN spokesperson said. "Her contributions to the fight against drugs and crime, and her commitment to prisoner rights, made a tangible difference in the lives of vulnerable people."

The US State Department extended condolences to the royal family and the Thai people, noting the princess's time studying at Cornell University in upstate New York.

What Happens Next?

With Bajrakitiyabha's death, the line of succession becomes less clear. Under Thailand's 1924 Palace Law of Succession, the throne can only pass to male heirs, though the law could theoretically be amended with sufficient political will.

Prince Dipangkorn is the only son of the king who holds a royal title, making him the presumed heir under current law. However, questions about his reported learning difficulties and his young age have led to speculation about the need for a regent or potential changes to succession rules.

The king's estranged sons, who live abroad, could theoretically be considered for succession, though their long absence from Thailand and strained relationship with their father make this unlikely.

Princess Sirivannavari, as a female, faces legal barriers to succession under current laws, though some analysts suggest the rules could be changed – particularly given the princess's public popularity and professional accomplishments.

For now, however, the nation's focus remains on mourning the princess who many had hoped would one day lead the kingdom.