尚真王
Low stone walls and post-holes indicate the original form of the castle, constructed in the late 13th–early 14th centuries. Over the next century or so, the castle was expanded, and came to encompass what is today labeled the "kogusuku". Korean roof tiles were used in the expansions and construction at this time. Significant portions of the castle were taken away in the early 16th century to aid in the construction of Shuri Castle. The castle remained in use, however, and Shō Iko, the son of King Shō Shin, took up residence there in 1509. Finding it largely in ruins, he oversaw its refurbishment, and it is believed he moved the residential section of the castle from the "kogusuku" to the "migusuku" at this time.