李成桂
In 1398 – in the 6th year of the reign of King Taejo of Joseon, a diplomatic mission was sent to Japan. Pak Tong-chi and his retinue arrived in Kyoto in 1398 ("Ōei 5, 8th month"). Shogun Yoshimochi presented the envoy with a formal diplomatic letter; and presents were given for the envoy to convey to the Joseon court.