Minamoto no Yoshimitsu was awarded Kai Province following the Gosannen War, and his great-grandson Nobuyoshi took the surname Takeda.
[2] Nanbu Mitsuyuki joined Minamoto no Yoritomo at the Battle of Ishibashiyama and served in various mid-level positions within the Kamakura shogunate and is mentioned several times in the Azuma Kagami.
He accompanied Yoritomo in the conquest of the Hiraizumi Fujiwara in 1189, and was awarded with vast estates in Nukanobu District the extreme northeast of Honshū, building Shōjujidate Castle.
This Hachiman shrine is built on a plateau along the Mabuchi River, south of the main site of the Shōju-ji temple.
It is believed to have been the site of a fortification erected by Nambu Nobunao in 1578; however, the shrine itself is said to have been transferred from Kai Province when the Nanbu clan relocated to Nukanobu District.