Although a simple family tree was more or less taken up in the "Zoku Gunshoruiju" (Second series Collection of the Japanese historical materials compiled in the Edo period), it is not necessarily certain without enough supporting documents.
一応、『続群書類従』には簡易な系図が挙げられているものの裏付となる資料も乏しく、系図は必ずしもはっきりしていない。