While FUJIWARA no Michiyori, his elder brother of a different mother, had been given the childhood name of 'Ochiyogimi' (big-chiyogimi), he was named 'Kochiyogimi' (small-chiyogimi).
異母兄として「大千代君」の幼名を持つ藤原道頼がいたため、「小千代君」と名づけられた。