Heijō-kyō excavation team discovered a wood tag attaching kombu (sea grass) tribute in 729 from "Natori district of Mutsu province" to the palace.
[1] And although date and year are unknown, a word Notori was written on a cup excavated at the Kōriyama Site.
[2] The first appearance in reliable literature is in Shoku Nihongi when Kimikobe Okina, a person of Natori District, was permitted to change his family name (kabane) in 769.
So the Natori district had gradually diminished with incorporation or promotion of its municipalities to cities .
Finally the original area had been divided to three cities of Sendai, Natori and Iwanuma by 1988. p24