This is conjectured to have been carried out by the Soga clan for the purpose of countering the Mononobe and Nakatomi clans that were appointed to perform Saishi (religious rites and services) in the Chotei (Imperial Court).
これは、朝廷の祭祀を任されていた連姓の物部氏、中臣氏を牽制する為の目的も有ったと推察される。