Wu Zetian is the second daughter of Wu Shihuo, the founder of the Tang Dynasty. Her mother's name is Yang (born in the royal family of Sui Dynasty, and her father is the younger brother of King Guan De and Duke Ning of Sui Dynasty), and her ancestral home is in Wenshui County (now Wenshui County, Luliang City, Shanxi Province).
Wu Zetian Wude was born in Lizhou (now Guangyuan, Sichuan) in the seventh year (624). She was once called Chang 'an (now Xi 'an, Shaanxi) and Luoyang.
There are two half-brothers, Wu and Wu, and two half-sisters. One is Mrs. Wu Shun of Korea (Wu Shun is called a sister in history books and a sister in Wu Shun's epitaph), and the other is Mrs. Guo.
Wu Shihuo is engaged in timber trade, and his family is well-off. At the end of Yang Di the Great, when Li Yuan (Tang Gaozu) was in Hedong, he stayed in the Wu family many times and got to know each other. After Li Yuan rose up against the Sui Dynasty in Taiyuan, the Wu family once supported money and had no worries about food and clothing. After the establishment of the Tang Dynasty, Wu Shihuo, as a "hero of the Yuan Dynasty", was appointed as the minister of the Ministry of Industry and the secretariat of Jingzhou.