According to the legend of Kiyohime (Princess Kiyo), the woman of main character was said to be a daughter of Seiji of Masago shoji (according to an ancient tradition, this is supposed to be Seiji's wife or widow).
清姫伝説では、主人公の女は真砂の庄司清次の娘（古い伝えでは清次の妻あるいは未亡人）とされる。