 The ancestors of the Trần clan originated from the province of Fujian and later migrated to Đại Việt under Trần Kinh 陳京 (Chén Jīng), the ancestor of the Trần clan.Their descendants, the later rulers of Đại Việt who were of mixed-blooded descent later established the Tran dynasty, which ruled Vietnam (Đại Việt); despite many intermarriages between the Trần and several royal members of the Lý dynasty alongside members of their royal court as in the case of Trần Lý and Trần Thừa, some of the mixed-blooded descendants of the Trần dynasty and certain members of the clan could still speak Chinese such as when a Yuan dynasty envoy had a meeting with the Chinese-speaking Trần prince Trần Quốc Tuấn in 1282.Historian Liam Kelley noted that people from Song dynasty China like Zhao Zhong and Xu Zongdao escaped to Trần Dynasty Vietnam after the Mongol invasion of the Song and helped the Tran fight against the Mongol invasion.