It is said that his father, TAIRA no Yoshimasa, governed Sakura City, Shimosa Province, and there exists a district named Masakado in Sakura City to this day, but there are no historical documents that substantiate these claims.
父の平良将は、下総国佐倉市が領地と伝えられ、佐倉市将門と地名も残るが、根拠となる史料は無い。