Princess Bajrakitiyabha, the eldest child and designated heir to Thailand’s King Vajiralongkorn, has died at the age of 47. The princess collapsed in December 2022 due to a severe heart condition and had been receiving medical treatment since. Her condition was reportedly linked to a heart ailment exacerbated by a viral infection. Princess Bajrakitiyabha was a key member of the royal family and held significant roles within the Thai government, including ambassador to Austria. Her death raises questions about the future succession plans for the Thai monarchy, as she was widely considered the frontrunner to ascend the throne. The palace has announced a period of mourning following the princess’s passing.