* Image is for illustrative purposes only.Nagaoka Castle
長岡城
Nagaoka Castle is a historic castle in Chūbu dating from the Developed as the Echigo domain seat by Hori Hideharu from 1598; Makino Tadanari entered as lord in 1616, and the Makino clan held 74,000 koku through the Meiji Restoration, whose lord was Hori clan (Echigo Hori) → Matsudaira (Okudaira) clan → Makino clan (Makino Ecchūno-kami line).
Overview
Nagaoka Castle was a flatland castle located in central Nagaoka City, Niigata Prefecture, and functioned throughout the Edo period as the political, military, and economic center of Echigo Province (present-day Chūetsu region of Niigata Prefecture). Built near the confluence of the Shinano River and the Kariyata River, it was a water castle (mizushiro) whose concentric moats encircling the fortress epitomized defensive design that maximized Echigo's abundant water resources.
The castle's origins date to the end of the Sengoku period. During the era of Uesugi Kenshin, Echigo was governed from Kasugayama Castle (present-day Jōetsu City) as its seat of power, but around Keichō 10 (1605), Hori Naoyori began construction of a new castle and castle town in Nagaoka, a strategic location in the Chūetsu region—work that was later completed under the Makino clan. Hori family rule was relatively brief; following political upheaval after the Battle of Sekigahara (1600), the Hori family was removed from power and Echigo was divided among daimyo loyal to the Tokugawa.
The stable foundation of the Nagaoka domain was established by Makino Tadanari, who took office in Genwa 4 (1618). The Makino clan descended from Makino Yasunari, a trusted senior retainer of Tokugawa Ieyasu, and served the shogunate as hereditary daimyo through successive generations. Thereafter, the Makino family ruled the Nagaoka domain of 74,000 koku as daimyo for thirteen generations until the Meiji Restoration.
The Edo-period castle town of Nagaoka developed as a commercial center leveraging the transport networks of the Shinano River. It gained nationwide fame as a distribution hub for Echigo chijimi (Echigo ramie cloth), becoming the economic heart of the Echigo Plain. The castle town was arranged in concentric circles comprising the San-no-maru (third bailey), Ni-no-maru (second bailey), and Honmaru (inner bailey), with samurai residences, merchant quarters, and artisan districts organized in orderly fashion.
The Nagaoka domain of the late Edo period was known as a prestigious domain that produced senior councillors and also gave birth to an outstanding feudal administrator named Kawai Tsuginosuke. Kawai Tsuginosuke was an early modernizer who rapidly adopted modern Western weapons (Gatling guns) to strengthen the domain's military capabilities. In Meiji 1 (1868), during the Boshin War (Northern Etsu Campaign), he led fierce battles as leader of the Ōu Etsu Allied Provinces against imperial forces. This "Nagaoka War" was inscribed in history as one of the fiercest conflicts of the Boshin War. Despite Kawai Tsuginosuke's valiant resistance, Nagaoka Castle fell; Kawai escaped the castle with a gunshot wound to the thigh and died of illness at Shiozawa (Tadami, Fukushima Prefecture) while en route to Aizu.
The castle was abandoned and dismantled after the Meiji Restoration. Today, only the "Nagaoka Castle Site" memorial stone before JR Nagaoka Station and traces of partial moats remain. The Kawai Tsuginosuke Memorial Museum (Nagaoka City) displays Kawai's personal belongings, swords, and letters, preserving the martial culture of Nagaoka for posterity. Nagaoka City continues to be known for the spirit of "A Hundred Bales of Rice"—the historical anecdote of the domain allocating grain provisions toward education during times of hardship—and the Nagaoka Fireworks Festival (one of Japan's three great fireworks displays), maintaining the pride of a castle town.
Connection to Swords
The connection between Nagaoka Castle and the Japanese sword can be understood through three pillars: the history of sword production in the Echigo region, the blade culture of the warrior families centered on the Makino clan, and the use of swords during the turmoil of the Bakumatsu period. Echigo Province has long been known as one of Japan's premier sword-producing regions. Among these, the "Echigo Sanjō Smiths" (Echigo Sanjō Kaji) were a group of sword smiths who achieved nationwide acclaim during the Edo period. Based in Sanjō City (approximately 30 kilometers north of Nagaoka), the Echigo sword smiths had a versatile tradition of metalworking, handling both agricultural tools and swords. Throughout the Edo period, sword smiths across Echigo created uchigatana and wakizashi, which were supplied to Nagaoka domain samurai and the broader warrior class of Echigo. The sword-smithing techniques of Sanjō subsequently became the foundation for developing Sanjō as a major center of the blade industry, and maintain direct historical continuity with the metalworking industries of present-day Sanjō City. In the warrior culture of Nagaoka domain (ruled by the Makino clan), swords were the soul of domain samurai and were valued as practical weapons. The Makino clan, as a fudai daimyo, were integrated into the shogunate's military system, and fine blades commissioned by successive generations of domain lords and senior retainers from celebrated smiths in Echigo and Edo were passed down through the domain household. Nagaoka domain was particularly a prestigious realm that produced senior shogunal officials (such as Makino Shussei, a contemporary of Mizuno Tadakuni), and the swords worn by high-ranking domain samurai transcended mere weaponry to be cultural symbols embodying family prestige, ritual significance, and aesthetic refinement. The Hokuetsu Campaign of 1868 during the Bakumatsu period was one of the final large-scale battles in which the Japanese sword collided with modern weaponry. While the Gatling gun and Western-style firearms introduced by Kawai Tsuginosuke posed formidable challenges to imperial forces, many Nagaoka domain samurai concluded their lives with the Japanese sword, and the swords of domain samurai who fell in battle were subsequently donated to local temples and shrines, where they remain to this day. Kawai Tsuginosuke's personal effects are displayed at the Kawai Tsuginosuke Memorial Museum, transmitting to the modern era the final radiance of Echigo's sword culture. Furthermore, Echigo (Niigata) was also a production center for practical blades for farming and mountain villages, known as "Echigo mountain swords" (Echigo yamagana), and the foundation of blade culture that connected to the metalworking industries of Sanjō and Tsubame also breathed vitally within the castle town. As a castle situated at such a historical center of Echigo's sword and blade culture, Nagaoka Castle occupies an important position in narrating the regional production culture of the Japanese sword.
Highlights
- Nagaoka Castle ruins marker (Nagaoka Station) — commemorative stone at JR Nagaoka Station East Exit marking the original castle site
- Kawai Tsuginosuke Memorial Museum — displays the reformer's personal swords, Gatling gun, and documents, the finest expression of Nagaoka's warrior culture
- Echigo Sanjō sword tradition — the historical swordsmithy of Sanjō City, ancestor of the region's modern metalworking industry, that supplied blades to Nagaoka domain
- Nagaoka Festival Fireworks — one of Japan's three great fireworks displays, commemorating the Boshin War fallen and Nagaoka's spirit of reconstruction
- Hyappyō no Kome spirit — the celebrated episode of converting domain rice into education funding, a byword for Nagaoka's civic resilience
- Shinano River water castle traces — remnant moat lines in the city recalling the concentric water defenses of the Edo-period castle
* Opening hours and admission fees are subject to change. Please check the official website before visiting.