Katana by Uda Kunimune

宇多国宗の刀

Also known as: Kunimune Katana

Smith

Uda Kunimune

Era

Nanbokuchō to early Muromachi period (14th–15th century)

Type

Katana

Designation

Important Sword

Location

Toyama City Local History Museum, Toyama

Description

Uda Kunimune was one of the leading swordsmiths of the Uda school of Etchū Province (present-day Toyama Prefecture), active from the Nanbokuchō through the early Muromachi period. The Uda school was founded by Uda Kunimitsu, who migrated to Etchū from Yamato Province (present-day Nara Prefecture), and its work is characterized by a powerful aesthetic that fuses the bold grandeur of Nanbokuchō-era swordsmanship with the distinctive character of Etchū province iron. This katana, approximately 68 centimeters in length, displays the transitional form of the late Nanbokuchō through early Muromachi eras: broad width and a pronounced koshi-zori curvature. The hamon is a vigorous ō-gunome-midare interspersed with chōji elements, with abundant sunagashi and kinsuji working throughout—a powerful, martial beauty that embodies the turbulent Nanbokuchō age. The jigane shows flowing ō-itame grain with coarse, strongly permeating ji-nie, reflecting the characteristically dense iron quality of Etchū province forges. Uda school blades were widely used by warrior families across Etchū, and Maeda Toshitsugu, lord of Toyama Castle, is said to have owned multiple Uda swords among his collection. The blade is now held by the Toyama City Local History Museum.

Legends & Stories

The Uda school smiths are said to have been deeply connected with the mountain worship traditions of Etchū Province, maintaining a custom of praying to the deity of Mt. Tateyama for success in sword-making. According to tradition, Kunimune climbed Tateyama the day after a great snowfall one year and used the sacred meltwater from the holy peak in his forging—afterward declaring that he had produced a blade with 'a clarity of jigane unlike anything before.' From that time, Uda swords were called 'swords infused with the sacred waters of Tateyama' and became objects of folk veneration, sought after as talismans for healing illness.

Smith

宇多国宗

Etchū Province, Uda School. An independent sword-making tradition that developed in Etchū, influenced by the Yamato tradition yet possessing its own distinctive steel and temper characteristics. The school's unique forging is sometimes called 'Uda-hada,' a complex mixing of itame and masame grain patterns.

Uda Kunimune

Active from the late Nanbokuchō period into the early Muromachi period (late 14th to early 15th century). A leading smith of the Uda school of Etchū Province (present-day Toyama Prefecture), he worked as the turmoil of the Northern and Southern Courts gave way to the established Muromachi shogunate.

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