[1] He supported Shō Hashi, first king of the Ryukyu Kingdom, in his conquest of Hokuzan and unification of Okinawa Island.
[1] For many years, Gosamaru served the kingdom loyally, and developed ties with the royal family, his daughter marrying King Shō Taikyū.
[4] An alternate theory claims that the entire affair was organized by the royal government, in order to remove both Gosamaru and Amawari as powerful rivals and potential threats to the succession.
[5] The tale of Gosamaru's betrayal and destruction by Amawari is among the more famous and popular of local historical legends.
A Kumi odori (narrative dance-play) telling of Gosamaru's sons' quest for revenge against Amawari, was once performed as part of the kingdom's formal entertainment of Chinese investiture envoys to Ryukyu, and has in more recent times become popular again.