Who married Yang Guifei?
Li Mao married Yang Guifei in .
Emperor Xuanzong of Tang married Yang Guifei in . The age gap was 33 years, 9 months and 19 days.
Yang Guifei
Yang Yuhuan (Chinese: 楊玉環; 719 – 15 July 756), often known as Yang Guifei or Consort 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 rebellion to her family, particularly her cousin Yang Guozhong. The emperor capitulated and ordered his attendant Gao Lishi to supervise her forced suicide.
Read more...
Li Mao
Li Qing (李清; 720s – 12 February 775), known as Li Mao (李瑁) from 725 and honored title Prince of Shou (壽王) was a prince of the Tang dynasty. He was the 18th son of Emperor Xuanzong and his mother was Xuanzong's favorite concubine Consort Wu.
Read more...Yang Guifei

Emperor Xuanzong of Tang
Emperor Xuanzong of Tang ([ɕwǎn.tsʊ́ŋ]; 8 September 685 – 3 May 762), personal name Li Longji, was an emperor of the Tang dynasty of China, reigning from 712 to 756. His reign of 44 years was the longest during the Tang dynasty. Through two palace coups, he seized the throne and inherited an empire still in its golden age. He was initially assisted by capable chancellors like Yao Chong, Song Jing and Zhang Yue who were already serving as government officials before Xuanzong ascended the throne. However, under Emperor Xuanzong, the empire reached its turning point and went into sharp decline and near collapse, due to numerous political missteps throughout his long reign, such as over-trusting chancellors Li Linfu, Yang Guozhong and general An Lushan, with Tang's golden age ending in the An Lushan rebellion.
Read more...