Masaruko's mother, Goshi was also from the Mikohidari family from which FUJIWARA no Toshinari and FUJIWARA no Sadaie were originated; Masaruko was known for being an expert in calligraphy, painting, Japanese harp, Japanese lute, taking over the cultural talent of her parents.
多子の母・豪子も、藤原俊成・藤原定家の出た御子左家の出身であり、両親の文化的素養を受け継いだ影響から、多子も書・絵・琴・琵琶の名手として知られた。