It is unknown as to why her name is read as 'Kitashi' as opposed to 'Katashio' (Katashio: the name of an old region in Takada-shi, Yamato, where the Imperial House of Emperor Annei was, or as hardened salt).
なお、なぜ「かたしお」（片塩：大和高田市にある安寧天皇の宮があった古地名、あるいは固めた塩）でなく、「きたし」と読むかは不明。