Princess Bajrakitiyabha Mahidol, the eldest daughter of King Maha Vajiralongkorn, died at age 47 on Thursday evening in a Bangkok hospital where she had been receiving care since a serious illness three years ago. The Bureau of the Royal Household confirmed the death,noting the princess had been unconscious after a mycoplasma infection in December 2022. Prime Minister Anutin Charnvirakul called her a "pride of Thailand" and highlighted her commitment to justice and equality.

Her death follows a three‑year battle with a mycoplasma infection

The princess fell unconscious while training dogs for an army exhibition in December 2022, prompting hospitalization at King Chulalongkorn Memorial Hospital. According to the palace statement, doctors identified a mycoplasma bacterial infection, typically linked to pneumonia, and she remained under observaiton ever since. The prolonged illness kept her out of public view, and her passing was announced only after she slipped away on Thursday night.

Kamlangjai project: a legacy of rehabilitating Thai women prisoners

Bajrakitiyabha was best known for launching the Kamlangjai (Inspire) initiative, which aimed to prepare incarcerated women for successful reintegration. The program provided vocational training, legal counseling, and mental‑health support, and it was credited with influencing the United Nations’ adoption of the Bangkok Rules on the treatment of female prisoners. As the UN Office on Drugs and Crime’s goodwill ambassador, she leveraged her legal expertise to push for systemic reforms.

Royal lineage and speculation about a future regency role

Born on 7 December 1978 to then‑Crown Prince Vajiralongkorn and Princess Soamsawali, the princess held the formal royal name Bajrakitiyabha Narendira Debyavati. While Prince Dipangkorn Rasmijoti remains the presumptive heir under Thailand’s male‑preference succession, analysts noted that Bajrakitiyabha’s extensive public‑service record positioned her as a potential regent should a youthful monarch ascend the throne. Her education at Thammasat University and Cornell Law School, where she earned a doctorate in 2005, reinforced her reputation as a legal scholar.

Public mourning and personal tributes at Chulalongkorn Hospital

A small group of mourners gathered in the hospital atrium, holding framed photos of the princess from various stages of her career . Pattamaporn Kaewkityakorn, who arrived the night before, expressed shock and sorrow, saying, "I know she was sick, but I wished there were a miracle." The intimate setting underscored the personal grief felt by many Thais, even as the nation’s leadership issued formal statements of condolence.

Unanswered questions about the princess’s health and future projects

Two key uncertainties remain: first, the exact cause of the sudden loss of consciousness in 2022 has not been fully disclosed beyond the mycoplasma diagnosis; second, the future of the Kamlangjai project without her leadership is unclear, as no successor has been publicly named. As the palace has not provided further medical details, speculation continues about whether her condition could have been managed differently.

According to the Bureau of the Royal Household, the princess is survived by her parents, King Maha Vajiralongkorn and Queen Suthida, and her siblings. Her death marks the end of a distinctive chapter in Thailand’s modern royal engagement with law and human rights.