Tamagusuku

Tamagusuku (1296–1336), recorded in the Ryukyu chronicles as the fourth king of the Eiso dynasty from 1314, was the third son of King Eiji and succeeded at Urasoe. He could not command the loyalty of the territorial lords, the anji.

During his reign the lord of Ōzato withdrew south to found the kingdom of Nanzan and the lord of Nakijin proclaimed Hokuzan in the north, leaving Tamagusuku ruler of Chūzan and opening the Three Kingdoms era. He died of illness on 22 April 1336, leaving his son Seii as the last Eiso king.