Shigemori's wife, Keishi, and a daughter of FUJIWARA no Kunitsuna, Tsunako, were selected as nannies of Imperial Prince Norihito, and so Shigemori was the husband of a nanny.
憲仁親王の乳母には重盛の室・経子と藤原邦綱の女・綱子が選ばれ、重盛は乳父（めのと）になった。