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Wiki information Ubolratana:
Princess Ubolratana Rajakanya of Thailand, or full name Ubolratana Rajakanya Sirivadhana Barnavadi, is a princess of Thailand and the eldest child of King Bhumibol Adulyadej and Queen Consort Sirikit. She relinquished her royal title and settled in...
Ubolratana is a district of Khon Kaen Province, northeastern Thailand. The district is named after Princess Ubol Ratana, the eldest child of King Bhumibol Adulyadej.