The Ten Great Disciples of Masamune: Go Yoshihiro, Sa, Go, Kaneuji, and More

Masamune and His Legacy

Masamune of Soshu (Kamakura) — active in the late Kamakura to early Nanbokucho period — is considered the supreme master in nihonto history. His soshu-den style, characterized by explosive nie activity, bold hamon, and powerful jihada, set the apex standard for all subsequent nihonto.

The Ten Great Disciples

Go Yoshihiro (Etchu Province) is often placed first among the Jutetsu. His extremely rare surviving works — perhaps ten blades, all designated National Treasures or Important Cultural Properties — show nie richness surpassing even Masamune's. His scarcity is legendary.

Sa Samonji (Chikuzen, Fukuoka) brought soshu-den to Kyushu, producing bold blades of powerful nie and brilliant jihada. The Yoshimoto Samonji (later Sozan Samonji), taken by Nobunaga at the Battle of Okehazama, is the most historically famous of his works.

Kaneuji (Mino Province) transplanted soshu-den techniques to Mino, laying the foundation for Mino-den — the mass-production tradition that supplied swords across Japan from the Muromachi period onward.

Hasebe Kunishige (Yamashiro/Kyoto) is immortalized as the maker of the Oshikiri Hasebe — a National Treasure housed at the Fukuoka City Museum, famously associated with Oda Nobunaga.