Career
She is a daughter of Chulalongkorn, King Rama V of Siam. She is the 57th daughter of King Chulalongkorn, and the 6th child of Queen Savang Vadhana. She was given the full name from her father as, Sirabhorn Sobhon Bimolratanavadi (Thai: ศิราภรณ์โสภณ พิมลรัตนวดี)
She died in her childhood from pneumonia on 24 May 1898, at the age of 9.