Who is the offspring of XXX?
Ubolratana Rajakanya
Princess Ubolratana Rajakanya (Thai: อุบลรัตนราชกัญญา; rtgs: Ubonrat Ratchakanya; Thai pronunciation: (ʔù.bon.rát râːt.tɕʰa.kan.jāː); born 5 April 1951 in Lausanne, Switzerland), or full name Ubolratana Rajakanya Sirivadhana Barnavadi (Thai: อุบลรัตนราชกัญญา สิริวัฒนาพรรณวดี; rtgs: Ubonrat Ratchakanya Siriwatthana Phannawadi), is a princess of Thailand and the eldest child of King Bhumibol Adulyadej and Queen Sirikit.