Minamoto no Yorimitsu
Her paternal ancestry is unknown, but she was supposedly a daughter of Minamoto no Yorimitsu. The fourteenth-century work "Chokusen Sakusha Burui" (勅撰作者部類) claims Yorimitsu was her father, but the "Kin'yōshū" includes a "renga" by Yorimitsu and "Sagami's mother" (相模母), so it is also possible he was her adoptive father. Her mother was a daughter of Yoshishige no Yasuaki, governor of Noto (前能登守慶滋保章).