The Han Wengong Temple in Chaozhou was built to commemorate the Han Yu of the Tang Dynasty. Han Yu only served as an official in Chaozhou for eight months, and he did four major things, so that the people of Chaozhou admired and remembered for generations, and even the surname of Shanshui Yi was Han (Chaozhou Yuanjiang changed to Hanjiang, and Bijiashan changed to Hanshan).