Thailand’s Princess Bajrakitiyabha Dies at 47 After Three Years in Coma

Princess Bajrakitiyabha Mahidol, the eldest daughter of Thailand’s King Maha Vajiralongkorn, died on Thursday evening at age 47 after spending nearly four years in a coma. She collapsed in December 2022 while exercising her dogs in northeastern Thailand and suffered a heart condition caused by a mycoplasma infection. Her death removes a widely respected figure from Thai public life and leaves the royal succession unclear, a sensitive issue in Thailand where strict laws limit public discussion of the monarchy.

How the Princess Fell Ill

Princess Bajrakitiyabha collapsed suddenly in December 2022 while training her dogs in Nakhon Ratchasima province. Doctors attributed the collapse to a severely irregular heartbeat caused by a mycoplasma infection in her heart muscle. She was flown by helicopter to Chulalongkorn Hospital in Bangkok for treatment and remained hospitalized ever since.

In her final months, her condition worsened due to multiple organ infections. In April 2026, physicians discovered a stomach infection that caused intestinal inflammation, low blood pressure, and irregular heartbeat. Her kidney function and breathing were supported by medical equipment until she passed away peacefully at 19:48 local time on Thursday.

A Life Dedicated to Justice Reform

The princess earned a doctorate in law from Cornell University in the United States and worked as a prosecutor in Thailand’s Attorney-General’s office. From 2012 to 2014, she served as Thailand’s ambassador to Austria, Slovenia, and Slovakia, where she built relationships with the United Nations Office on Drugs and Crime.

Bajrakitiyabha became a UN goodwill ambassador for the rule of law in Southeast Asia and championed penal reform, particularly for vulnerable women in prison. The UN General Assembly adopted the “Bangkok Rules” on female prisoner care following her advocacy efforts. In 2021, her father appointed her chief of staff of the Royal Security Command with the rank of general.

Succession Questions Loom

The princess was one of only three of King Vajiralongkorn’s seven children to hold a royal title. A 1974 constitutional amendment allows a female to take the throne, making her eligible to become Thailand’s first female traditional ruler. Analysts widely viewed her as well-suited to lead the nation, though the king never officially addressed succession.

Prime Minister Anutin Charnvirakul said in a televised speech that the princess was “the pride of Thailand” and that her “commitment to building a society of kindness, justice and equality will forever remain as a moral legacy for the nation.” The palace announced her body will lie in state at the Grand Palace and her funeral will be held with the highest honors according to royal tradition.

Why Her Death Matters

With her death, Thailand has lost its most visibly accomplished royal family member and someone who bridged the gap between the monarchy and ordinary people. Her work on women’s rights and criminal justice reform set her apart from other royals perceived as distant from Thai society. Analysts noted she positioned herself well among the people through her charitable efforts, particularly her Kamlangjai or “Inspire” campaign that helped rehabilitate imprisoned women before release.

Her death creates immediate uncertainty about the line of succession. King Vajiralongkorn, now 73 years old, has not named an heir. Thai law restricts public discussion of the monarchy through strict lese majesty laws, which impose up to 15 years in prison for criticism of the royal family.

Final Thoughts

Princess Bajrakitiyabha’s death removes a respected voice for justice reform from Thailand’s public life and leaves the royal succession undecided. With no official heir named and strict laws limiting succession debate, Thailand faces an uncertain period ahead.

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