A Ryukyu Royal Tomb Cut Into a Shuri Hillside
On a wooded slope in Shuri Ishimine, in the eastern part of Naha, a low stone tomb stands behind a shallow run of steps. This is Ie Udun Baka, the burial ground of the Ie Udun, a branch family of the royal house that ruled the Ryukyu Kingdom. The tomb was completed in 1687, and because that date is set down in the family's own genealogy, it is one of the few Okinawan tombs of its age that can be dated with real confidence.
A word about the calendar is useful here. The Ryukyu Kingdom was an independent state governing the islands south of Japan until 1879. It sent regular tribute to the Chinese court and used Chinese reign names in its official records, so the year of construction is written as the 26th year of Kangxi, after the Qing emperor whose reign filled the late seventeenth century.
The tomb belongs to a form found only in Okinawa, the turtleback tomb, called kāminakū-baka in the local language. Its swelling stone roof was shaped to recall a turtle's shell, and in island belief the curved chamber also stood for the mother's body, to which the dead were thought to return. Families still gather at tombs like this one for Shīmī, the spring grave-visiting rite, sharing food in the forecourt among the generations buried within.
One of Okinawa's Oldest Dated Turtleback Tombs
The line of the Ie Udun begins with Chōgi, Prince Ie, the seventh son of King Shō Sei, fourth ruler of the Second Shō Dynasty, who took the throne in 1527. According to the family genealogy, the fourth-generation head, Chōfu, was granted the burial land at Ishimine, and his successor, the fifth-generation Chōka, fulfilled his father's intention by raising the tomb in 1687.
That documented date is the heart of the tomb's importance. Many Okinawan turtleback tombs survive without a firm year of construction, so a structure whose origin is fixed in writing serves as a measuring stick for the rest. The Agency for Cultural Affairs designated Ie Udun Baka an Important Cultural Property on 1 December 1999, citing its high historical value and its strong regional character, the two grounds recorded as criteria (iii) and (v).
Look closely and the tomb shows its age in its proportions. The raised band of stone above the chamber mouth, the feature Okinawan masons call the mayu, or brow, sits lower here than on the larger, more elaborate family tombs built in the following century. Reading that low brow is one way specialists place the structure near the start of the turtleback tradition rather than its showy late phase.
Reading the Stone
The whole tomb is built of cut Ryukyu limestone, the soft coral stone of the islands, with its main surfaces finished in white lime plaster. The burial chamber was carved back into the slope. In front of it lie two walled courts on different levels: the inner one, nearer the chamber, is the Sanmidē, and the outer one is the Nā, the open court where mourners stood. A gentle stair climbs to the front from the south.
The tomb itself is modest in scale next to the grand royal burials of later generations, roughly eleven metres wide and seventeen deep, covering about 140 square metres, while the tree-shaded precinct around it runs to some 2,266 square metres. For all its restraint, it carries the standard parts of a developed turtleback tomb, lacking only the hinpun, the free-standing screen wall that shields the entrance of grander examples.
One detail belongs to family memory rather than to the record. The Ie are said to have had the site read for feng shui by a geomancer named Tseng Te-lu, known in Okinawa as Chantārū, a refugee from Fuzhou who had crossed to the islands during the upheaval between the Ming and Qing dynasties and lived in Naha teaching Chinese learning. The story cannot be verified, but it fits a kingdom whose elite looked steadily toward China for both scholarship and ritual.
Visiting, and Where to Go Instead
Ie Udun Baka is still a working family tomb set among houses, not a managed visitor site. The exterior can be seen from the public approach, and that is as close as a respectful traveller should come; the precinct is private and is not entered. It rewards a short, quiet look on the way between other Shuri sights rather than a journey of its own.
Anyone who wants to step inside a Ryukyu royal tomb should head for Tamaudun, a few minutes' walk west of Shuri Castle. Built in 1501 for the kings of the Second Shō Dynasty, it became the first structure in Okinawa Prefecture to be named a National Treasure, in 2018, and it forms part of the World Heritage Gusuku Sites and Related Properties of the Kingdom of Ryukyu. Tamaudun is open to the public, keeps a small museum below the reception hall, and charges a modest admission, so it gives the context that the private Ie tomb cannot.
The whole Shuri district repays a half-day on foot. Shuri Castle, the Shureimon gate, and Tamaudun cluster within walking distance, and the monorail puts the area within easy reach of central Naha.
- 📍 Plan Your Visit to Okinawa
- Find tours, activities & transport passes near Ie Palace Tomb (Shuri Ishiminecho, Naha City, Okinawa
- [ Churaumi Aquarium & Shuri Castle Okinawa Tours ]
Q&A
- Can I go inside Ie Udun Baka?
- No. It remains a private family tomb in a residential area, so the interior and the walled courts are off limits. You can view the exterior from the public approach, but please keep your distance and do not enter the precinct.
- What is a turtleback tomb?
- It is an Okinawan tomb type whose rounded stone roof was shaped to resemble a turtle's shell. The curved chamber was also understood as the mother's body, a place to which the dead returned. The form spread among Ryukyu nobility from the seventeenth century onward.
- Why is the date given as a Chinese reign year?
- The Ryukyu Kingdom sent tribute to China and used Chinese reign names in official documents. The tomb's records date its construction to the 26th year of Kangxi, which corresponds to 1687.
- How does this tomb differ from Tamaudun?
- Tamaudun is the mausoleum of the Ryukyu kings themselves, larger and far grander, and it is open to visitors. Ie Udun Baka belongs to a royal branch family, is smaller and plainer, and is private. Its value lies in its early, securely dated form.
- What is Shīmī?
- Shīmī is the spring grave-visiting custom, held around early April at the time of the Chinese Qingming festival. Relatives gather in the forecourt of the family tomb to clean it and share a meal, a practice that reached Okinawa from China in the eighteenth century.
Basic Information
| Name | Ie Udun Baka (Tomb of the Ie Udun) |
|---|---|
| Location | 1-62-4, 1-62-14 and 67-1 Shuri Ishimine-cho, Naha City, Okinawa Prefecture |
| Designation | Important Cultural Property (Structures), designated 1 December 1999; designation no. 02377; criteria (iii) and (v) |
| Date built | 1687 (26th year of Kangxi) |
| Form | Stone turtleback tomb of cut Ryukyu limestone with white plaster; burial chamber with two walled courts, the Sanmidē and the Nā; count: one structure |
| Scale | Tomb approx. 11 m wide and 17 m deep, about 140 m²; precinct about 2,266 m² |
| Access | About 15 minutes on foot from Shuri Station on the Yui Rail monorail; near Shuri Castle and Tamaudun |
| Public access | Private family tomb; exterior viewing only, no entry to the precinct |
References
- Agency for Cultural Affairs, National Database of Designated Cultural Properties: Ie Udun Baka
- https://kunishitei.bunka.go.jp/bsys/maindetails/102/3673
- Okinawa Story (Okinawa Convention & Visitors Bureau): Ie Udun Baka
- https://www.okinawastory.jp/spot/30000007
- Naha City Tourism Resource Database: Ie Udun Baka
- https://www.naha-contentsdb.jp/spot/671
- Naha City Tourism Database (English): Tamaudun Mausoleum
- https://www.naha-contentsdb.jp/en/spot/717
Last verified: 2026.06.17