It is certain that Kutarano Miko was reported in "Shinsen Shojiroku" (Newly Compiled Register of Clan Names and Titles of Nobility) as a grandson of the Emperor Bidatsu on Sakyo Kobetsu (clans branched out from the Imperial Family) was a son of Oshisaka no Hikohito no Oenomiko, but since his name was not mentioned in the genealogy in "Kojiki" (The Records of Ancient Matters), there is a theory that Kutara no Miko was the same person as Tara no Miko (Ku from Kutara was dropped) and Chinu no Okimi.
なお、『新撰姓氏録』左京皇別に敏達天皇の孫として見える「百済王(皇族)（くたらのみこ）」も彦人大兄皇子の子であることは確実だが、『古事記』に掲げられた系譜には見えないため、多良王（久多良王の久が脱落）や茅渟王と同一人に考える説がある。