After SOGA no Umako defeated MONONOBE no Moriya, the Oomuraji, the system of Oomuraji was virtually abolished and Umako became the sole consul; thereafter, the Soga clan monopolized the key positions in politics and SOGA no Emishi, a son of Umako, succeeded Ooomi.
蘇我馬子が大連_(古代日本)である物部守屋を討った後は大連制が事実上廃されたために馬子が単独の執政官となり、以降は蘇我氏が政権の中枢を担うようになり、大臣は蘇我蝦夷（馬子の子）が跡を継いだ。