83m keyhole mound in Nishikyo Ward, Kyoto City — one of the city's largest keyhole mounds, part of the National Historic Site "Otokuni Kofun Group." Known for the medieval tradition linking it to Emperor Montoku (hence the name and the place name "Goryo/Imperial Tomb" nearby), though it is archaeologically a late-4th-century chieftain tomb. A quiet green space cherished by local residents amid the urban landscape.
Finds & research
Cylindrical and morning-glory-shaped haniwa (recovered in 1988–89 excavations). Grave goods details not published.
Two views on the occupant
Archaeological view
83m keyhole mound in an early "e-kagami" (handle-mirror) style with an unusually narrow front section. Two-tiered; stone paving and haniwa rows confirmed. Late 4th century (confirmed by cylindrical and morning-glory haniwa in 1988–89 excavations). Located at the foot of the hills on the right bank of Katsura River — presumed tomb of a powerful chieftain controlling the area. The name "Tennonomori" (Emperor's Grove) derives from a medieval tradition linking it to Emperor Montoku, though Montoku's actual mausoleum is elsewhere.
Imperial Household Agency view
Not designated by the IHA. Designated as a standalone National Historic Site on March 8, 1922; incorporated into the "Otokuni Kofun Group" in 2016. Traditionally associated with Emperor Montoku's mausoleum, but archaeologically unrelated.
Field notes
Preserved amid residential housing; exterior viewing only. About 20 min walk from Hankyu Higashi-Mukou or Rakusaiguchi Station. The local place name "Goryo" (Imperial Tomb) derives from this kofun.