Ienari was a cousin of FUJIWARA no Muneko (Ikenozenni), who was the legal wife of TAIRA no Tadamori, and TAIRA no Kiyomori, in his youth, often visited Ienari's residence, and there was a close relationship between the two families.
家成は、平忠盛の正室・藤原宗子（池禅尼）の従兄弟であり、若い頃の平清盛はしばしば家成の邸に出入りするなど両家の関係は親密だった。