Buddhist and Confucian Graves of a Daimyo Family

The Graves of the Nakagawa Family, Lords of the Oka Domain (岡藩主中川家墓所) is the graves of the Nakagawa lords of the Oka domain at three places within the former domain in Taketa and Bungo-Ono cities, Oita Prefecture, designated a Historic Site in 1997.

The Agency for Cultural Affairs lists them under the criterion for tombs and monuments.

According to the Agency, Nakagawa Hidenari entered Oka Castle with a fief of 66,000 koku in 1594, and Taketa remained the Nakagawa castle town until the Meiji Restoration.

The Three Burial Places

According to the Agency, the graves are at three places: Hekiunji temple in the castle town, in the mountains of Taisen to the north, and on Kofujisan to the east. Hidenari began building Hekiunji in spring 1612 but died before it was finished, and his funeral was held there; the temple name is said to come from a plaque he brought back from Korea.

Hekiunji holds the graves of the first, second, fourth, fifth, sixth, ninth and eleventh lords. Within earthen walls beyond the Onari gate lies the Ryugin pond, with pagoda- and ring-shaped grave towers at the foot of the hill to the north. The towers once stood inside mausoleum buildings; the second lord's mausoleum survives, moved to the neighbouring Koryuji.

What to Look For

The Agency notes that the third lord, Hisakiyo, loved Mount Taisen and chose Toriikubo in its mountains for his grave, where he was buried with Confucian rites as he wished. The eighth lord, Hisasada, was likewise buried with Confucian rites on Kofujisan, overlooking Oka Castle.

The Agency values the combination of Buddhist graves with gardens, as at Hekiunji, and Confucian graves set in nature, as showing daimyo ideas about burial. The Hekiunji graveyard was restored by the Taketa board of education in fiscal 1992, based on a map of 1860.

Visiting the Graves of the Nakagawa Family, Lords of the Oka Domain

The Hekiunji graveyard is laid out for visitors. Hisakiyo's grave lies deep in the mountains, so check routes and equipment before going.

Enquiries go to the Taketa City board of education.

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Q&A

QWhen were the graves designated?
AOn 2 September 1997.
QWhere are they?
AAt Hekiunji, on Mount Taisen and on Kofujisan.
QWho is buried at Hekiunji?
AThe first, second, fourth, fifth, sixth, ninth and eleventh lords.
QWhich lords had Confucian burials?
AThe third, on Mount Taisen, and the eighth, on Kofujisan.
QWhy are they important?
AThey show daimyo ideas of burial in both Buddhist and Confucian forms.

Basic Information

NameGraves of the Nakagawa Family, Lords of the Oka Domain (岡藩主中川家墓所)
LocationTaketa City and Bungo-Ono City, Oita Prefecture
DesignationHistoric Site
Year DesignatedDesignated 1997/9/2 (Heisei 9)
Quantity3 burial places
DimensionsNot recorded in the Agency for Cultural Affairs database
OwnerNot recorded in the Agency for Cultural Affairs database
Public AccessHekiunji graveyard laid out for visitors

References

Agency for Cultural Affairs Database: Nakagawa Family Graves (Japanese)
https://kunishitei.bunka.go.jp/bsys/maindetails/401/2901
Cultural Heritage Online: Nakagawa Family Graves (Japanese)
https://online.bunka.go.jp/heritages/detail/162638

Last verified: 2026.09.29