Furthermore, his son, TAIRA no Tadamori became the Mimaya-Betto (chief of Umaya-no-tsukasa, ministry of the stables) of Emperor Shirakawa and unified the Mimaki of Shirakawa-in (Retired Emperor Shirakawa) and bushidan that used it as their base.
また、その子平忠盛は白河天皇の御厩別当となり、白河院の御牧と、そこを拠点とする武士団を統括した。