Nitobe Koretami was born in 1769. He was called Eikichi in his childhood. After his adulthood, he was also called Minji and Heiroku. He was called Denzō in his second half of life and later called Chiō. His father was Tsuneyoshi, and his mother was Oei. When these parents got married, the Nitobe family received about 11 Koku. And even when his sister got married, the Nitobe family gave her husband's family a substantial amount of dowry. However, in his era, the Nitobe family was greatly ups and downs. He studied under Kenshin's martial arts instructor, Urushido Yoshimasa. He inherited that martial arts to Tochinai Takayoshi. Around the beginning of the 19th century, the security of Hanamaki Castle became weak due to Nanbu Toshitaka's sovereign reforms due to financial difficulties, so he secretly agreed with several warriors and raised funds for Hanamaki Castle security. After Toshitaka's death in 1820, he thought it was time and filed a white paper with the Morioka clan, along with several samurais, including his son Nueta. However, the white paper was not accepted, and he was taken up on a semi-land and expelled to Tanabu. He was forgiven in 1826 and returned to Hanamaki. He served a secret official business at Morioka Domain. He was recognized for his work and he was involved in the governing of Morioka. He also worked as a writer and he died on October 7, 1845.
Family
Depending upon the source, Ōta Tokitoshi and the entire Nitobe clan are descendants of either the Minamoto clan or the Taira clan. Tsunetane's grandson, took over Nitobe in Shimotsuke Province. Tsunehide continued inheritance with Tsunechika, Yasutane, Tsunesato, Tsunesada 、Sadatsuna, Sadahiro, Hiromori, Tsunemochi Tsunetada, Tsunenobu , and Nobumori from generation to generation. Sadatsuna lived in Nitobe and died in 1309. During the Nanboku-chō period, Sadahiro and his son Hiromori both fought on the Southern Court side. Sadahiro died in 1337. Hiromori died in Shinano in 1351 during the war. Tsunetada and his son Tsunenobu both served Ashikaga Mitsukane and Mochiuji of the Kantō kubō. After Tsunenobu's death, his son Nobumori returned to Nitobe. Nobumori's daughter was Moriyori's wife. As for the inheritor, Nobumori welcomed the clan, Motoyoshi Narizumi's child, Moriyori as an adopted child, and became Nitobe for the first time. Moriyori continued inheritance with Yoritane, Yoshitane, Tanemochi, Yorinaga, Taneshige, and Tokiharu from generation to generation. Tokiharu's third son Tsunetsuna split up and became a Hanamaki Kyūjin. Before Tsunetsuna became Kyūjin, Tsunetsuna served Nanbu Masanao. After Tsunetsuna's death, Tsunetsuna's second son Sadaaki inherited. After Sadaaki, Yoshiaki, Densuke, and Heizo) inherited. After Yoshiaki's death, Yoshiaki's nephew Tsunemochi inherited. After Tsunemochi's death, Tsunemochi's brother Tsunetoki inherited. After Tsunetoki, Tsuneyoshi inherited. Tsuneyoshi was Koretami's father. Tsuneyoshi married Koretami's mother Oei. Tsuneyoshi Died in 1803. Koretami's son was Tsunezumi. Koretami's grandson was Tsunenori and Ōta Tokitoshi. Koretami's great-grandsons were Shichirō and Inanosuke.
