After the death of Tadamori, the Southern House of the Fujiwara Clan further declined politically as the rise of the Northern House of Fujiwara Clan mainly due to the Jowa incident broken out soon after his death, however, his great-grandson FUJIWARA no Motozane became a great poet who was counted in one of the Thirty-six Immortal Poets and his great-great-grandson FUJIWARA no Muneyo married Sei Shonagon.
三守の死後、藤原南家は直後に起きた承和の変などによる、藤原北家の台頭もあって、政治的にさらに衰退したが、彼の曾孫藤原元真は三十六歌仙の一人とされるほどの歌人となり、玄孫の藤原棟世は清少納言と結婚している。