[1] The Shichinohe Nanbu clan was allowed to survive as 2300 koku hatamoto serving the Morioka Domain under the Tokugawa shogunate.
In 1858, the daimyō of Shichinohe, Nanbu Nobuchika was raised to the status of castellan and granted formal permission to rebuild Shichinohe Castle as part of Japan’s increased defensive preparations against possible foreign incursions in light of the recent Perry Expedition.
During the Boshin War of the Meiji Restoration, Nanbu Nobutami, the 3rd daimyō, supported the Ōuetsu Reppan Dōmei and fought against the pro-imperial forces of Hirosaki Domain in the Battle of Noheji.
Consequently, he was forced into retirement by the new Meiji government and the revenues of Shichinohe Domain were decreased by 1,000 koku.
He was received in formal audience by shōgun Tokugawa Ienari on November 15, 1821, and confirmed in his title, but died only a few days later.
He was the cousin of the karō of Morioka Domain, Sannohe Shikibu and great-grandson of Nanbu Toshimi).
However, as his successor Nanbu Nobukata was still underage, he continued to rule the domain, and sponsored sericulture and livestock raising in his final years.
[3] Nanbu Nobukata (南部信方, June 22, 1858 – July 29, 1923) was the 4th and final daimyō of Shichinohe Domain.