Kusunku (or Kung Siang Chin)
Kusunku wasa Chinese military advisor who came from China to Okinawa at the request of Okinawa’s king. He lived in Okinawa from 1756-1761. He was a master of Kempo.
Satunushi ‘Tode’ Sakugawa (1733-1815)
Student of Takahara and Okinawan teacher of Soken Matsumura (see below). Takahara suggested that Sakugawa go to train with Kusunku. Formulated the ‘Kusunku’ kata to honour his teacher, Kusunku, after his death.
Sokon ‘Bushi’ Matsumura (1796-1893)
Student of Sakugawa and teacher of Itosu.
Yatsutsune ‘Ankoh’ Itosu (1830-1915)
A student of Sokon Matsumura’s, taught the kata to his student – Gichen Funakoshi.
Gichen Funakoshi (1868-1957)
Founded Shotokan karate (incorporating ‘Kusunku’ but changed the name to ‘Kanku-dai’)
While many styles incorporate Kanku-dai, GKR derives its from Shotokan karate.