Nakagawa Clan Cemetery of Oka Domain: A National Historic Site in Taketa, Oita
Nestled in the serene landscapes of Taketa City in Oita Prefecture, the Nakagawa Clan Cemetery (岡藩主中川家墓所, Oka Hanshu Nakagawa-ke Bosho) stands as a remarkable testament to the legacy of one of Kyushu's most enduring feudal families. Designated as a National Historic Site in 1997, this collection of burial grounds spans three distinct locations, each reflecting unique aspects of Edo-period funerary customs — from elegant Buddhist-style mausoleums set within tranquil temple gardens to austere Confucian graves perched high on remote mountain slopes.
The Nakagawa clan governed the Oka Domain from their stronghold at Oka Castle for nearly 280 years, from 1594 until the Meiji Restoration. Their burial sites offer an extraordinary window into how feudal lords chose to be remembered — and how their personal philosophies shaped the landscapes where they chose to rest for eternity.
History of the Nakagawa Clan and Oka Domain
The story of the Nakagawa clan in Taketa begins in 1594, when Nakagawa Hidenari (中川秀成) was assigned to Oka Castle by Toyotomi Hideyoshi with an estate assessed at 66,000 koku (later reassessed to 70,000 koku). Hidenari was the son of Nakagawa Kiyohide, a notable warrior who had served both Oda Nobunaga and Toyotomi Hideyoshi. The Nakagawa clan would go on to rule the Oka Domain — the largest domain in the former Bungo Province — for thirteen generations without interruption, a remarkable feat of political stability.
During the Battle of Sekigahara in 1600, Hidenari remained loyal to the Eastern Army under Tokugawa Ieyasu, securing the clan's position for the entire Edo period. Under Nakagawa rule, the castle town of Taketa flourished as a center of culture, commerce, and governance. The domain was known for its high-quality rice and soybeans, and its location on major trade routes brought considerable prosperity. The clan's cultural legacy includes connections to the renowned late-Edo-period painter Tanomura Chikuden, who hailed from the Oka Domain.
The Three Cemetery Sites
Hekiunji Temple Cemetery (碧雲寺墓所)
The principal cemetery of the Nakagawa clan is located at Hekiunji Temple in the Jouhoku-machi area of Taketa. The first lord, Hidenari, began construction of this temple in the spring of 1612, though he passed away that summer before its completion. His son, the second lord Hisamori, completed the temple as the family's ancestral Buddhist temple (bodaiji). The temple's name derives from a plaque that Hidenari brought back from Korea during the Bunroku Campaign under Toyotomi Hideyoshi.
Seven of the Nakagawa lords are interred here: the 1st lord Hidenari, the 2nd lord Hisamori, the 4th lord Hisatsune, the 5th lord Hisamichi, the 6th lord Hisatada, the 9th lord Hisamochi, and the 11th lord Hisanori. The cemetery is an exquisite blend of funerary architecture and garden design. The mausoleums are arranged along the northern hillside behind the Ryuginchi (Dragon Chanting Pond), featuring a variety of stone pagodas including modified treasure pagodas (hōtō) and multi-tiered ring pagodas (rintō). Originally, each tomb was sheltered within a wooden mausoleum building called a tama-ya (霊屋). The sole surviving example — the tama-ya of the 2nd lord Hisamori — was relocated to the neighboring Kōryūji Temple and still stands today.
Today, this cemetery has been beautifully restored as the Otamaya Park based on a historic map dating from 1860. Visitors can stroll through the manicured grounds, admire water lilies and irises blooming around the Ryuginchi Pond in early summer, and contemplate the stately row of feudal lord tombs against the backdrop of forested hillsides. A cliff-carved Buddhist relief sculpture (magaibutsu) from the early Edo period can also be found on the eastern rock face of the park.
Mt. Taisen Cemetery — Tomb of Lord Hisakiyo (大船山墓所)
Perhaps the most dramatic of the three sites, the tomb of the 3rd lord Nakagawa Hisakiyo (久清) sits at an elevation of approximately 1,400 meters on the slopes of Mt. Taisen (大船山) in the Kuju Mountain Range. Lord Hisakiyo was deeply devoted to this mountain, taking the name "Nyūzan" (入山, meaning "Entering the Mountain") after his retirement. Despite having difficulty walking, he regularly made the ascent carried on a special frame called a jinba-gura (人馬鞍) borne by his retainers. He conducted military exercises with his samurai in the highland meadow called Toriigakubo (鳥居窪).
Before his death, Hisakiyo left instructions that he be buried in the Confucian rite (jusō, 儒葬) — rather than the Buddhist rite used for most feudal lords — at a spot overlooking Toriigakubo on the mountain he loved. This tomb is believed to be one of the highest-altitude feudal lord graves in all of Japan, a unique distinction that speaks to the deeply personal relationship between this lord and the natural landscape.
Mt. Kofuji Cemetery — Tomb of Lord Hisasada (小富士山墓所)
The tomb of the 8th lord Nakagawa Hisasada (久貞) is located on Mt. Kofuji (小富士山), south of Oka Castle in the present-day city of Bungo Ōno. Like the 3rd lord before him, Hisasada chose to be buried according to Confucian rites, leaving instructions for this site in his will. The location was selected for its commanding view of Oka Castle — a place of scenic splendor (fūkei zekka no chi, 風景絶佳の地) that visually links the departed lord to the seat of his former power.
Why Was It Designated as a National Historic Site?
The Nakagawa Clan Cemetery was designated as a National Historic Site on September 2, 1997, for its exceptional value in illustrating the diverse funerary customs and philosophies of Edo-period feudal lords. The three burial sites together demonstrate a remarkable range of approaches to death and memorial:
- The Hekiunji Temple site represents the formal Buddhist tradition, with elaborate stone pagodas, garden-integrated tomb layouts, and the characteristic tama-ya mausoleum buildings of daimyō funerary architecture.
- The Mt. Taisen and Mt. Kofuji sites represent the Confucian burial tradition, which was relatively unusual among Japanese feudal lords, featuring graves set within dramatic natural landscapes rather than temple precincts.
- Together, the three sites reveal how personal beliefs and aesthetic sensibilities of individual lords — rather than rigid adherence to a single tradition — shaped the treatment of death and memory in Edo-period Japan.
This diversity within a single clan's burial practices makes the Nakagawa Cemetery a uniquely valuable site for understanding the intellectual and spiritual currents that influenced Japanese aristocratic culture during the feudal era.
Highlights and What to See
The most accessible of the three cemetery sites is the Hekiunji Temple / Otamaya Park location in central Taketa. Here, visitors can enjoy a contemplative walk through a beautifully maintained historic landscape that combines funerary architecture, garden art, and Buddhist sculpture. The Ryuginchi Pond, bordered by stone bridges, creates a meditative atmosphere, especially in early summer when water lilies and Japanese irises are in bloom. The row of seven lord's tombs along the hillside offers a sense of the grandeur and continuity of samurai governance.
For adventurous travelers, the Mt. Taisen cemetery of the 3rd lord Hisakiyo offers a genuinely unique experience. Located within the Kuju Mountain Range — one of Kyushu's premier hiking destinations — the tomb can be reached via hiking trails from the Gakurokoji Temple area. The surrounding highlands of Toriigakubo, with remnants of stone torii gates and small Buddhist statues, create an atmosphere of sacred wilderness. The site is particularly stunning in autumn when the mountain slopes blaze with autumn foliage.
The neighboring Hekiunji Temple itself is also worth a visit. This Rinzai Zen temple preserves its solemn atmosphere, with a striking plaque brought from Korea over 400 years ago and a centuries-old Japanese hackberry tree (mukunoki) on its grounds. Zen meditation sessions (zazen) are held monthly for those interested in a deeper spiritual experience.
Surrounding Attractions
Taketa City offers a wealth of cultural and natural attractions that pair beautifully with a visit to the Nakagawa Clan Cemetery:
- Oka Castle Ruins (岡城跡) — The magnificent stone walls of the Nakagawa clan's former stronghold stretch along a dramatic hilltop. This National Historic Site inspired the famous song "Kōjō no Tsuki" (Moon over the Ruined Castle) by composer Rentarō Taki. It is one of Japan's Top 100 Castles and offers panoramic views of the Kuju Mountains.
- Taketa Castle Town (竹田城下町) — The well-preserved samurai district features traditional architecture, artisan workshops, galleries, and the Taketa Hidden Christian Museum (Misterio), which explores Taketa's fascinating connection to Japan's "hidden Christians" (kakure kirishitan).
- Nagayu Onsen (長湯温泉) — About 20 minutes by car from Taketa, this hot spring district is famous for its exceptionally high-concentration carbonated springs, considered among the finest in the world. The Ramune Onsen (Lemonade Hot Spring), designed by architect Terunobu Fujimori, is a must-visit. Historically, the Nakagawa lords themselves patronized these springs, building a teahouse here in 1706.
- Kuju Mountain Range (くじゅう連山) — The mountains surrounding Taketa offer superb hiking, with Mt. Taisen being particularly popular for its summit pond and spectacular autumn colors. The highlands also feature Kuju Flower Park and the Kuju Kōgen plateau with its wide-open grasslands.
- Rentarō Taki Memorial Hall (滝廉太郎記念館) — Dedicated to the young composer who spent his formative years in Taketa, this museum preserves the house where he lived and chronicles his life and musical legacy.
- 📍 Plan Your Visit to Oita
- Find tours, activities & transport passes near Graveyard of the Nakagawa Family, Lords of the Oka Domain
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Q&A
- How do I get to the Nakagawa Clan Cemetery (Otamaya Park)?
- The main cemetery site at Otamaya Park is located about a 10–15 minute walk from JR Bungo-Taketa Station on the Hōhi Main Line, or about a 5-minute drive. The park has a small free parking lot for about 5 cars. It is open from 9:00 to 17:00, closed on Mondays and during the year-end/New Year period. Admission is free.
- Can I visit the Mt. Taisen cemetery of the 3rd lord?
- Yes, but it requires a mountain hike. The tomb is located at approximately 1,400 meters elevation on Mt. Taisen in the Kuju Mountain Range. Access is via hiking trails from the Gakurokoji Temple area in Kuju. The hike is moderately challenging and takes several hours round trip. Proper hiking equipment, sufficient water, and favorable weather conditions are essential. Autumn is an especially rewarding time to visit.
- Is there English signage or information available?
- English information at the cemetery sites is limited. Otamaya Park has some basic signage, but detailed English explanations may not be available. It is recommended to research the site beforehand or visit the Taketa City Historical and Cultural Museum (Yugakukan), which is connected to the Oka Castle site and may have multilingual resources. The Taketa Tourism Association can also provide information.
- What is the best season to visit?
- Each season has its charm. Spring (March–April) brings cherry blossoms to the castle town area. Early summer (May–June) is ideal for Otamaya Park when water lilies and irises bloom around the Ryuginchi Pond. Autumn (October–November) is spectacular for the Mt. Taisen cemetery, as the Kuju Mountains are ablaze with fall foliage. Winter offers a more contemplative atmosphere with fewer visitors.
- Can I combine a visit with Oka Castle and other nearby attractions?
- Absolutely! Otamaya Park is within easy walking distance of both JR Bungo-Taketa Station and Oka Castle Ruins, making it simple to combine all three in a half-day or full-day itinerary. After visiting the castle ruins, you can cross to Otamaya Park via a pedestrian bridge near the former Taketa Elementary School. The samurai district, Rentarō Taki Memorial Hall, and hidden Christian sites are all within the compact castle town area. Nagayu Onsen is about 20 minutes away by car for a relaxing end to the day.
Basic Information
| Official Name | Nakagawa Clan Cemetery of Oka Domain (岡藩主中川家墓所) |
|---|---|
| Designation | National Historic Site (designated September 2, 1997) |
| Location | Taketa City (Ai-ai, Irita, and Kuju-machi districts) and Bungo Ōno City (Terahara), Oita Prefecture |
| Main Site (Otamaya Park) | 2027-1 Ai-ai, Taketa City, Oita 878-0011 |
| Hours | 9:00 – 17:00 (Otamaya Park) |
| Closed | Mondays; December 29 – January 3 |
| Admission | Free |
| Parking | Free (approximately 5 spaces at Otamaya Park) |
| Access | Approximately 10–15 minutes on foot from JR Bungo-Taketa Station (Hōhi Main Line); about 5 minutes by car |
| Contact | Taketa City Commerce and Tourism Division: 0974-63-4807 |
References
- Cultural Heritage Online — Nakagawa Clan Cemetery of Oka Domain
- https://bunka.nii.ac.jp/heritages/detail/162638
- National Designated Cultural Properties Database — Nakagawa Clan Cemetery
- https://kunishitei.bunka.go.jp/heritage/detail/401/2901
- Taketa Tourism Association — Otamaya Park
- https://taketa.guide/spots/detail/b87a7dea-200b-4980-bc54-3543ad047fc5
- Taketa Tourism Association — Nyūzan Kōbyō (Nakagawa Hisakiyo Tomb)
- https://taketa.guide/spots/detail/69a32833-03a4-4bfe-a9f1-760226c37350
- Oita Prefecture Official Tourism Site — Otamaya Park
- https://www.visit-oita.jp/spots/detail/6052
- Wikipedia — Oka Castle
- https://en.wikipedia.org/wiki/Oka_Castle
- Wikipedia — Oka Domain
- https://en.wikipedia.org/wiki/Oka_Domain
Last verified: 2026.03.12