Emperor Xuanzong of Tang
Yang Yuhuan (楊玉環; 26 June, 719 — 15 July 756), often known as Yang Guifei (楊貴妃, with "Guifei" being the highest rank for imperial consorts during her time), and known briefly by the Taoist nun name Taizhen (太真) was the beloved consort of Emperor Xuanzong of Tang during his later years. She is known as one of the Four Beauties of ancient China.