The reason is that Maro was the youngest of Fujiwara four brothers and had less number of children (and many of them suffered of premature death), as well as that FUJIWARA no Hamanari, the only person in Kyoke to be appointed to sangi (councilor), was exiled because of his implication in HIKAMI no Kawatsugu's War, which put an end to the political life of the Kyoke family.
麻呂が藤原四兄弟で一番年下だったこと、兄たちよりも子女の数が少なかった（しかも早世者も多かった）ことに加え、唯一参議に昇った藤原浜成が氷上川継の乱に連座して流罪になったことで、一族全体の政治生命が絶たれてしまったためである。