Oguni Masamitsu

Oguni Masamitsu was the head of the main line of the Oguni, a warrior clan of Kariwa District in Echigo Province, and fought for the Southern Court in the Northern and Southern Courts wars.

In 1335 he built Kanbarazu Castle on Mount Kanbachi as a base for loyalist commanders in lower Echigo. In 1341 Masamitsu and his allies came under attack from Northern Court forces there.