Claim: Yoshitaka Funakoshi, born in 1906 in Okinawa, a prefecture of Japan located on the Ryukyu Kingdom, was a 10th dan successor waka sensei to his father.
Evidence: 1906
Okinawa, Ryukyu Kingdom Okinawa Prefecture was ruled by the Ryukyu Kingdom from 1429 and unofficially annexed by Japan after the Invasion of Ryukyu in 1609. 10th dan, successor waka (後継者) sensei to his father