* Image is for illustrative purposes only.Niō Kiyotsuna
二王清綱
Description
Suō Niō School and Niō Kiyotsuna
Niō Kiyotsuna was a swordsmith of the Niō school (Niō-ha), based in Niho in Yoshiki District of Suō Province (present-day Yamaguchi City, Yamaguchi Prefecture; one theory places it in Kuga). The Niō school arose in the early Kamakura period and continued for a long time until the late Muromachi period. It was the largest swordsmith group in Suō Province, and its de facto founder is said to have been Niō Saburō Kiyotsuna. The leading theory holds that the name 'Niō' derives from the Nino estate (Nino-shō) where the school lived. A legend also survives that when the Niō-dō hall burned, he cut through the chains with a tachi he had made himself and rescued the Niō statue, which is why he came to be called Niō Saburō. Kiyotsuna is a prestigious name representing this school, and it was inherited over multiple generations.
Style Influenced by the Yamato Tradition
Suō Province had many estates of Tōdai-ji Temple, and it maintained close exchanges with swordsmiths of Yamato (Nara). For this reason, the influence of the Yamato tradition is strongly visible in the style of the Niō school. The jigane shows a ko-itame surface with masame flowing through it. The hamon is mainly suguba (straight hamon) and ko-gunome (small interlocking pattern), and the nioiguchi tends to be tight. Its calm, dignified style is characterized by an honest and steady beauty, in contrast to the flashy Bizen tradition.
Signature and Provenance
Works by Kiyotsuna bear signatures cut as 'Niō Kiyotsuna' or 'Kiyotsuna.' A tachi transmitted at Itsukushima Shrine, dated Bun'ei 2, is designated an Important Cultural Property. It is thought to be the work of the second or third generation, not the first. Other works of the school signed 'Kiyotsuna' are also designated Important Cultural Properties, and they are valued as materials that convey Suō's sword culture to the present day.
Lineage and Significance of the Niō School
The Niō school included several swordsmiths, including others who inherited the Kiyotsuna name as well as smiths such as Kiyozane. From the Kamakura period to the late Muromachi period, the school formed the core of Suō's sword production. The path of the Niō school is an important example in sword history of a regional school that kept a high standard for a long time. It was established in Suō, which faces the Seto Inland Sea and prospered through trade, and it absorbed Yamato tradition techniques while developing its own distinctive style.
Tendencies in Blade Production
Works of the Niō school show diverse forms suited to each period, including Kamakura-period tachi, large Nanboku-chō-period tachi, and Muromachi-period uchigatana and wakizashi. The Kiyotsuna name was not confined to one generation but was passed down over several generations, so even works with the same 'Niō Kiyotsuna' signature differ in production date, and changes in style by period can be seen. The underlying strength of the Niō school shows in its sustained, stable production of blades over a long period despite being in a provincial area.
Tōken-za and Niō Kiyotsuna
Tōken-za presents Niō Kiyotsuna as a representative smith of the Niō school, which took root in Suō and inherited the spirit of the Yamato tradition. Valuing honest dignity over flashiness, this style shows the solid achievement of sword culture that flowered in the provinces. It has been handed down for a long time as a famed lineage of the Seto Inland Sea region.
Famous Works
- Tachi, dated Bun'ei 2 (Important Cultural Property; Itsukushima Shrine)
- Wakizashi Niō Kiyotsuna (Gifu Prefectural Museum; said to have been used in the kaishaku of Kondō Isami)