This legend was passed down in the Chiba clan, who claim to be descendants of Yoshifumi, and in particular, in the Soma clan, who ruled the territory of Soma-gun County (Shimosa Province), which, according to legend, was Masakado's home base.
この伝説は、良文の子孫を称する千葉氏、特に伝説上将門の本拠地とされた相馬郡(下総国)を領した相馬氏に伝えられた。