However, according to recent historical research and studies, the original genealogy might be written like this: "the Emperor Ojin – Oi no Okimi - Ushi no Okimi – the Emperor Keitai" which extended into two generations, was eliminated from the six generations of the genealogy as described in the Joguki: Wakanuke futamata no Miko and Oiratsuko (Katsuyasu KAWAGUCHI).
近年の研究によれば、この6代から若野毛二俣王と大郎子を除いた「応神―乎非―斯―継体」が本来の系譜とされている（川口勝康氏）。