Imperial Household Agency: Shinaga-no-Haka (Tomb of Prince Shotoku)
Location
Taishi, Osaka
Shape
Round mound
Mound diameter
50 m
Period
Early 7th c.
Designation
IHA-managed tomb
IHA designation
Managed by the IHA (mound closed to the public)
Overview
A round mound within Eifukuji Temple in Taishi, known archaeologically as Eifukuji Kita Kofun. Long revered as Prince Shotoku's tomb, it forms a combined temple-and-mausoleum landscape.
Finds & research
A finely constructed cut-stone horizontal stone chamber is known. The account of three coffins is traditional; the identities of the buried persons and the grave goods have not been archaeologically established.
Official status & archaeological view
Official status
The Imperial Household Agency designates and manages it as Shinaga-no-Haka, the tomb of Prince Shotoku.
Attribution (jitei): the Imperial Household Agency's determination of whose tomb it manages — separate from heritage designation.
Archaeological view
Taishi Town describes a round mound about 50m across and 10m high. Kashiwara City’s review of mausoleum research describes a three-tiered oval, about 53m east–west by 43m north–south, with a horizontal stone chamber of finely cut stone. One view dates it to the early 7th century; another proposes a later 7th-century reburial based on the chamber type. Taishi Town explains that tradition places Shotoku, his mother Anahobe-no-Hashihito, and his consort Kashiwade-no-Iratsume here, hence the phrase “three remains in one mausoleum.”
Field notes
The worship area is accessible through the Eifukuji precinct. Do not enter the Imperial Household Agency-managed enclosure and follow the temple's visitor guidance.