On, finally, the capital was remained in Shuri. Also in the same period, the name "Sanhoku" (山北) was changed into "Hokuzan" (北山). Rulers of Hokuzan See also Ryukyuan missions to Imperial China Ryukyu Kingdom Imperial Chinese missions to the Ryukyu Kingdom List of monarchs of the Ryukyu Islands Notes References Citations Sources Kerr, George H. (2000). Okinawa: the History of an Island People. (revised ed.) Boston: Tuttle Publishing. 1416 disestablishments States and territories established in 1314 Ryukyu Kingdom Ryukyu Islands Former kingdoms