Du Fu (7 12 February 12 [1] ~ 770), a great realistic poet in the Tang Dynasty, was also called "Du Li" with Li Bai. Born in Gongxian County, Henan Province, his ancestral home is Xiangyang, Hubei Province. In order to distinguish Li Shangyin, Du Mu and Xiao Du Li, Du Fu and Li Bai are also called Da Du Li, and Du Fu is often called Lao Du.