After the death of Emperor Bidatsu, Soga clan flourished as three children born (after Prince Tachibananotoyohi) between Emperor Kinmei and his wives took positions of Okimi (emperor) instead of Oshisaka no Hikohito no Oenomiko (prince) whose mother was officially a member of Imperial family; however, in those times accession to the throne was more common from brother to brother rather than from father to his son.
敏達天皇崩御後、彼女らの間に儲けた橘豊日皇子以降3人の弟・妹が、母親がれっきとした皇族である、甥の押坂彦人大兄皇子を差し置いて約40年大王（天皇）位につき、蘇我氏の全盛期が築かれる（ただ、当時は親子よりも兄弟の継承が一般的であった）。