Another version has it that Takanori's ancestor was Shigenori (should be the same person as a grandfather of Norinaga WADA who appears in another theory called Amenohiboko theory) the second son of Morinori, who was the youngest son of Moritsuna SASAKI from the Uda-Genji, who worked for Yoritomo MINAMOTO, but the only proof of this theory is "Seishi Kakei Daijiten" (a large dictionary of Japanese surnames) published by Kadokawa Group Publishing Co., Ltd., and as the source of the dictionary was not clear, it is not highly credible.
異説として、源頼朝に従った宇多源氏・佐々木盛綱末子・盛則の次男・重範（天之日矛後裔説・和田範長祖父と同一か）を祖とする説もあるが、この説の場合は角川書店発刊『姓氏家系大辞典』のみが出典であり、同書の出典の不明瞭な点から説の根拠としてはやや信憑性に欠けることが言える。