In the Southern Song Dynasty, Zhao Xu (Hui Ling), Ji Xu (Lingyuan), Weng Juan (Lingshu) and Zhao Shixiu (Lingxiu) were collectively called "Yongjia Four Spirits". Among them, Weng Juan is from Yueqing County, Wenzhou, and the other three are from Yongjia County, Wenzhou. Wenzhou was called Yongjia County in ancient times, and Yongjia County was also ruled by Wenzhou in the Song Dynasty. The font size of the four poets all has the word "Ling", with similar interests, the same creative ideas and similar poetic styles, and they are called "Yongjia Four Spirits" in the world.