Introduction to the Hedong Family: On the right side of Pailou Street, there is a figure-eight Yongqing Gate with the inscription "Hedong Family", announcing to visitors the origin of the Liu family - Hedong (the land of prolific prime ministers and ministers) ). The Pei, Liu, and Xue families in Hedong (today's Yuncheng) were historically known as the "Three Zhuo Clan in Hedong". When the Tang Dynasty was at its peak, there were twenty-two members of the Liu family serving as officials in the court, and their family status was hereditary.