Khun Wichitmatra (Sanga Kanchanakphan) (Thai: ขุนวิจิตรมาตรา (สง่า กาญจนาคพันธุ์); rtgs: Khun Wichitmattra (Sa-nga Kanchanakhaphan) wrote the lyrics of the Thai National Anthem which was played for the first time in July, 1932. The lyrics were subsequently rewritten two years later by Chan Kamwilai.