It is difficult at the present time to show a direct link between Nobutada ODA and the Ikoma clan as the host of the funeral of the Ikoma clan, who is said to be his birth mother, was Chasen-maru (Nobukatsu ODA) based on historical evidence of the time when Nobutada ODA was alive.
生母とされる生駒氏の喪主も茶筅丸（織田信雄）が務めており、織田信忠存命中の史料により、織田信忠と生駒氏を直接的に結びつける事は、現状では困難である。