The Neungseong Gu clan is one of the Korean clans. Their Bon-gwan is in Hwasun County, South Jeolla Province. According to the research held in 2015, the number of Neungseong Gu clan's member was 174,161. Their founder was Gu Jon-yu who exiled himself to Goryeo with Zhu Jam, the great-grandchild of Zhu Xi, because in 1224 he feared for his physical safety when Song dynasty was on the verge of destruction by Mongolia. Gu Jon-yu was possibly of Chinese or Korean. The origin of Gu Jon-yu has been disputed.