An imperial mausoleum at Yamada, Taishi Town, Minamikawachi District, Osaka Prefecture, managed by the IHA as the tomb of Emperor Kotoku, the 36th emperor. Taishi Town notes that it stands along the Takenouchi Kaido road and is also called Uguisu no Misasagi (the bush warbler's mausoleum).
Finds & research
Burial facilities and grave goods are not publicly detailed.
Official status & archaeological view
Official status
Managed by the IHA as the mausoleum of Emperor Kotoku, the 36th emperor; the official form is a round tumulus (enkyu).
Attribution (jitei): the Imperial Household Agency's determination of whose tomb it manages — separate from heritage designation.
Archaeological view
The IHA page gives no size. Taishi Town describes the mound, also called Yamada Uenoyama Kofun, as about 30 m in diameter; the town tourism association gives 32 m. Its construction date remains uncertain.
Field notes
Per the IHA, it is about a 12-minute walk from the Rokumaibashi-higashi bus stop, and worship is generally possible year-round from 8:30 to 17:00. The goryoin (mausoleum seal) is kept at the Furuichi Mausolea Office in Habikino, Osaka, where visitors can use it free of charge (reception 8:30–17:00; staff may be unavailable on weekends, holidays, 29 Dec–3 Jan and some other days). Nearby imperial mausolea: Taishi Nishiyama Kofun (Mausoleum of Emperor Bidatsu)↗, Kasuga Mukaiyama Kofun (Mausoleum of Emperor Yomei)↗ and Yamada Takatsuka Kofun (Mausoleum of Empress Suiko)↗.