Thailand’s Royal Palace announced the death of Princess Bajrakitiyabha, the eldest daughter of King Maha Vajiralongkorn, on Friday. She was 47 years old. The princess had been in a coma for over three years following a severe illness. Prior to her illness, Princess Bajrakitiyabha served as Thailand’s ambassador to Slovakia. She was a highly educated member of the royal family, having studied law and political science. Her death marks a period of mourning for the Thai monarchy and nation. Further details regarding the cause of her illness have not been publicly released.