Rai Kuninaga

Rai Kuninaga's Background and Nakajima Rai

Rai Kuninaga was a swordsmith of the Yamashiro-den Rai school who was active from the late Kamakura period into the Nanboku-chō period. The son of Rai Kunisue, Rai Kuninaga is considered a disciple of Rai Kunitoshi, and the style is said to be close to that of Rai Kunimitsu.

As the Kamakura shogunate fell and the country moved into the upheavals of the Nanboku-chō period, Rai Kuninaga left Kyoto and settled in Nakajima in Settsu Province (present-day area around Higashiyodogawa Ward, Osaka), where sword-making continued. The alternate name Nakajima Rai, taken from this place name, was widely used in later ages, and Rai Kuninaga is known as the founder of the Nakajima Rai line, a branch of the Rai school.

Style and Hamon

Rai Kuninaga's blades faithfully inherit the style of the Rai school. The body is broad, the chūkissaki extends, and the chūzori is high, giving a magnificent form. The hamon is mainly chū-suguha-chō, mixed with ko-chōji and ko-gunome, a delicate style with a bright, clear habuchi overall. The jigane is ko-itame-hada, tightly packed, with fine ji-nie that gives a beautiful finish and shares a dignity with the clear jigane of Rai Kunimitsu. The bōshi often sweeps (hakikake) and returns to a small round tip.

Representative Works and Cultural Property Designations

Rai Kuninaga's most famous representative work is the "Tachi, signed Rai Kuninaga" (held by Erin-ji Temple), designated as an Important Cultural Property by the national government. It is said to have been worn by Takeda Shingen. In 1705 (Hōei 2), Yanagisawa Yoshiyasu dedicated it to Erin-ji Temple for the 133rd memorial anniversary of Shingen. As a sword said to have been worn by one of the leading military commanders of the Sengoku period, it plainly shows the high standing of Rai Kuninaga as a swordsmith and is a historical relic. In addition, the "Tachi, unsigned, Rai Kuninaga" is designated as an Important Sword (jūyō tōken). That several extant works, both signed and unsigned, receive high ratings shows the technical stability of Rai Kuninaga.

Evaluation and Historical Position

Rai Kuninaga, as a disciple of Rai Kunitoshi, occupies a place in the mainstream of the Yamashiro-den Rai school. The move to Nakajima in Settsu established an independent lineage known as Nakajima Rai, which makes Rai Kuninaga especially noteworthy. During the turbulent period from the late Kamakura to the Nanboku-chō period, Rai Kuninaga moved the stage of activity from Kyoto to Nakajima in Settsu while passing down Rai school techniques, and leaves a firm mark in the history of Japanese swords.