Nagano Narimasa

Nagano Narimasa was a Japanese samurai retainer of the Uesugi clan during the Sengoku period and lord of Gunma. He was known for building Minowa Castle in 1526, and his skill at castle defense. He employed the famous spearman Kamiizumi Nobutsuna, who founded the Shinkage-ryū swordsmanship school.