She was a daughter between FUJIWARA no Fuhito and Agata no INUKAI no Michiyo (ACHIBANA no Michiyo) and FUJIWARA no Miyako, mother of Emperor Shomu, was her paternal half-sister.
藤原不比等と県犬養三千代（橘三千代）の娘であり、聖武天皇の母である藤原宮子は異母姉。