It is said that the Mononobe clan's ancestor is Nigihayahimikoto, who is believed to have descended to earth in Koho, Kawachi Province (presumably, present-day Katano City, Osaka Prefecture) before the time of the Imperial family.
物部氏（もののべうじ）は河内国の哮峰（現・大阪府交野市か）に天皇家よりも前に天孫降臨したとされるニギハヤヒミコトを祖先と伝えられる氏族。