According to "Mishitsunoi keizu," Takeshiba's daughter became the wife of Kanmu-Heishi TAIRA no Yoshifumi TAIRA no Masatsune of the Chichibu clan, and his granddaughter (the daughter of MUSASHI no Takemune, Takeshiba's son) married TAIRA no Motomune (son of TAIRA no Tadanume) to have children including TAIRA no Motonaga (the founder of Noyoto) and TAIRA no Yorito (the founder of Murayamato).
『西角井系図』では、武芝の娘は秩父氏の祖桓武平氏平良文平将恒の妻となり、孫娘（武芝の子武蔵武宗の娘）は平元宗（平胤宗の子）に嫁ぎ、平基永（野与党の祖）・平頼任（村山党の祖）を設けたとされる。