Yang Guifei

Yang Yuhuan (Chinese: 楊玉環; 719 – 15 July 756), often known as Yang Guifei or Lady Yang (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.

During the An Lushan Rebellion, while Emperor Xuanzong and his cortege were fleeing from Chang’an to Chengdu, imperial guards led by Chen Xuanli mutinied at Mawei Station and demanded Yang’s execution, attributing the decline of the dynasty to her family, particularly her cousin Yang Guozhong. The emperor capitulated and ordered his attendant Gao Lishi to supervise her forced suicide. Their love story is immortalized by Bai Juyi's poem Song of Everlasting Regret.

Source: Wikipedia — https://en.wikipedia.org/wiki/Yang_Guifei