His childhood name was Shikisaburo (式三郎) later Shojiro (総次郎) later become Date Tokimura, and he became heir on the death of his elder brother in 1783.

At the time of his genpuku ceremony in 1787, he received a kanji from Shōgun Tokugawa Ienari and became Date Narimura.

He also received court rank of Junior Fourth, Lower Grade and the courtesy titles of Mimasaka-no-kami and Jijū (chamberlain) at that time.

On his way back to Sendai after the funeral, he fell ill near Shirakawa, and died shortly after returning home to Aoba Castle at the age of 23.

As his heir Date Chikamune was still an infant and his second son (by a concubine) Date Narimune was still in his mother's womb, the domain took over a week to inform the authorities of Narimura's death, so that they could ensure that Narimune was posthumously recognised as Narimura's official son, and second in the line-of-succession.