Wei, Jin, Southern and Northern Dynasties: Fa Xian
Tang Dynasty: Xuanzang, Jian Zhen, Yijing (monk), Du Huan (traveler), envoys of the Tang Dynasty (sister Xiao Ye, Chao Heng, etc. )
Yuan Dynasty: Wang Dayuan (traveler) and Kyle Polo.
Ming Dynasty: Zheng He (emissary)