Xuande Emperor
Formal tributary relations with China began in 1372, and in 1427, the Xuande Emperor famously bestowed upon Hashi, King of Ryukyu, the honorary family name Shō (Shang), along with a lacquer tablet inscribed with the characters for Chūzan, and a number of other lavish gifts, including lacquerwares and formal court robes. This famous lacquer tablet was installed over the entrance to Shuri Castle, where it remained until the mid-20th century.