信国

Nobukuni

Description

## Nobukuni and the Founding of the Nobukuni School Nobukuni was a master swordsmith active in Yamashiro province (present-day Kyoto) from the Nanbokuchō period through the early Muromachi era, and is the founding master of the Nobukuni school. The Nobukuni school stands alongside the Rai and Ayakōji schools as one of the major lineages within the Yamashiro tradition, remaining continuously active in Kyoto throughout the Muromachi period. The question of Nobukuni's teacher is debated — the strongest theory connects him to the Rai lineage — but the prominent Sōshū influence in his work suggests he drew from multiple technical sources, occupying an eclectic intermediate position. His active era, from the Nanbokuchō into the early Muromachi, was precisely the moment when Sōshū-den influence was spreading across the country and Yamashiro smiths began to move beyond the suguha and ko-nie of their tradition toward more dynamic hamon. Nobukuni responded to this demand while maintaining Yamashiro dignity, establishing a distinctive style that bridged the two worlds. ## Blade Characteristics: Yamashiro and Sōshū Synthesized Nobukuni's defining achievement is the synthesis of Yamashiro-den's refined jigane with Sōshū-den's dynamic hamon. His jigane shows tightly packed ko-itame with good ji-nie coverage — the luminous, refined steel quality that links directly to the Rai tradition — maintained without compromise. His hamon, however, moves beyond the tranquil suguha of the Rai school into active gunome and chōji mixtures with strong nie activity. Kinsuji and sunagashi appear abundantly in Sōshū fashion, expressing within Yamashiro refinement the era's yearning for power and drama. Hitatsura works also exist, demonstrating direct Sōshū influence. In tantō he shows fidelity to the Rai tradition's precision, producing diverse sizes for a wide range of patrons. ## Horimono: A Distinguished Carving Tradition One of Nobukuni's most celebrated features is the quality and variety of horimono on his blades — bō-hi, koshi-hi, kurikara dragons, Sanskrit characters, Fudō Myōō, and more. The standard of these carvings demonstrates not only his skill as a swordsmith but his talents as a sculptor. This carving tradition was inherited by his successors and made the Nobukuni school a major supplier of elaborately carved swords in Kyoto throughout the Muromachi period. ## Transmission Through the Muromachi Period Nobukuni's techniques and style were carried forward by many successors — Nobukuni Yoshisada, Yoshikane, Yoshitsugu — sustaining Kyoto's sword culture through the Muromachi era. The school's continuity owed to its flexibility in serving both the practical needs of warriors and the ritual needs of court and temple, and it was the founding Nobukuni who first established that flexibility. ## Nobukuni and DATEKATANA DATEKATANA presents Nobukuni to show how the Yamashiro tradition survived and transformed itself through the Nanbokuchō transition. The fusion of Rai school refinement with Sōshū dynamism in Nobukuni's work was not mere eclecticism but a genuinely creative act — holding the contradictions of the era within a new aesthetic unity. That creative spirit speaks to anyone asking how to preserve essential values while embracing necessary change.

Famous Works

• 太刀（重要文化財）
• 短刀（東京国立博物館蔵・重要文化財）