* Image is for illustrative purposes only.Eisei Bunko
永青文庫
Overview
Museum Overview
This museum houses and displays art and historical materials that have been passed down through the Hosokawa family, lords of the former Higo Kumamoto Domain (540,000 koku), over seven centuries, serving as a living testament to the treasures of samurai culture. The name 'Eisei Bunko' derives from 'Ei' (永) of Eigenan, the Hosokawa family's Buddhist temple, and 'Sei' (青) from Shōryūji Castle, the ancestral seat of Hosokawa Tōkaku (Yūsai), the first Hosokawa lord of the early modern period. Founded in 1950 (Showa 25) by the 16th-generation head, Marquis Hosokawa Moritatsu, it is currently directed by Hosokawa Morihiro (the 18th-generation head and former Prime Minister).
Sword Treasures
The sword collection comprises masterworks carefully gathered and transmitted by successive Hosokawa lords with samurai pride. The greatest treasure is the National Treasure tachi inscribed 'Bungo Yukihira.' Yukihira, a renowned swordsmith of Bungo Province (present-day Oita Prefecture), flourished from the late Heian through the early Kamakura period. His softly flowing hamon and elegant tachi form rank among the finest achievements of Kyushu sword-making. Very few examples of Yukihira's work survive, making this blade the most important for understanding his mastery.
Calligraphy and Historical Records
Another highlight is the blade by Izumi no Kami Kaneshige, famously known as the 'Kasen Kaneshige.' This blade is said to have been owned by Hosokawa Tadaoki (husband of Gracia), and because Tadaoki executed thirty-six retainers, the blade became known as 'Kasen Kaneshige,' alluding to the Thirty-Six Poetry Immortals. Izumi no Kami Kaneshige was the second-generation Kaneshige (Noshio) of the Mino tradition, a master swordsmith whose blades achieved legendary fame during the Sengoku period as 'Seki no Kaneshige.' In recent years, influenced by historical video games, the museum has seen a sharp increase in younger visitors.
Academic Materials
The museum also boasts a rich collection of sword fittings, featuring exquisite koshirae (sword mountings) and masterworks of metalwork passed down through the Hosokawa family. The holdings also include calligraphy, painting, tea utensils, and nō masks reflecting samurai cultivation, allowing visitors to experience the Hosokawa family's dual mastery of martial and cultural arts.
Research Institution
The building occupies a section of the former Hosokawa Marquis residence situated on a quiet hilltop in Mejiro-dai. A charming Western-style structure from the early Showa period serves as the exhibition space. The building itself holds historical significance, and the lush garden grounds—remnants of the daimyo residence—provide a serene atmosphere. The adjacent Higo Hosokawa Garden (operated by Bunkyo Ward) is free to explore, and visitors can enjoy a peaceful atmosphere along the Kanda River.
Highlights
- National Treasure tachi inscribed 'Bungo Yukihira'—A masterwork by Yukihira, the renowned swordsmith of Bungo Province (late Heian–early Kamakura). Its softly flowing hamon and elegant tachi form exemplify the apex of Kyushu sword-making. Among the extremely rare surviving works of Yukihira, this blade is the most important for understanding his mastery.
- Kasen Kaneshige (by Izumi no Kami Kaneshige)—A celebrated blade said to have been owned by Hosokawa Tadaoki. Named after the Thirty-Six Poetry Immortals, alluding to Tadaoki's execution of thirty-six retainers. A masterwork by the second-generation Kaneshige (Noshio) of the Mino tradition.
- Hosokawa Family Heirloom Sword Fittings—Exquisite koshirae, tsuba, kozuka, kogai, and menuki meticulously preserved for seven centuries. The refined taste and masterful craftsmanship of a great daimyo house.
- Historic Former Hosokawa Marquis Residence—A charming Western-style structure from the early Showa period repurposed as an exhibition space. The building itself possesses cultural asset-level significance.
- Adjacent Higo Hosokawa Garden—A strolling pond garden (Bunkyo Ward managed, free admission). Its serene setting along the Kanda River offers the perfect post-gallery walk.
* Opening hours and exhibitions are subject to change. Please check the official website before visiting.