Sannohe Castle




After the original Sannohe Castle was burned down in a rebellion by one of his retainers, Nanbu Harumasa built his new castle on this site. The castle was further fortified into a modern castle with a palace and yagura by Nanbu Nobunao after he became lord in 1582. After Kunohe Masazane's uprising in 1591, Nobunao moved into Kunohe Castle and his nephew became lord of Sannohe Castle.

Visit Notes

There is no evidence this castle had a main keep or yagura in this style. It is a mock reconstruction.

  • 3 level yagura
  • mock keep/yagura
  • Tsunagomon
  • Tsunagomon
  • Stone walls of the gate
  • map

Castle Profile
English Name Sannohe Castle
Japanese Name 三戸城
Founder Nanbu Harumasa
Year Founded 1558
Castle Type Mountaintop
Castle Condition Reconstructed main keep
Historical Period Pre Edo Period
Main Keep Structure 3 levels, 3 floors
Year Reconstructed 1967
Features gates, turrets, stone walls, walls
Visitor Information
Access Sannohe Sta (Aomori Tetsudo), bus
Visitor Information open 9am-4pm; closed Mondays or the day following a holiday and from Dec 1 to Mar31. 200 yen admission
Time Required
Location Sannohe, Aomori Prefecture
Coordinates 40° 22' 52.90" N, 141° 15' 50.72" E
Loading map...
Added to Jcastle 2012
Admin Year Visited Viewer Contributed

(3 votes)
Add your comment welcomes all comments. If you do not want to be anonymous, register or log in. It is free.



25 months ago
Score 0++
There is talk of demolishing this poor, defenceless mogi tower. The Agency for Cultural Affairs (or whatever it's called) is low-key strong-arming the locals over the issue in exchange for increased historical status for the site overall. I have my misgivings.


75 months ago
Score 1++
Sannohejō is a Sengoku Period mountaintop castle. The site has some remaining ishigaki (stone ramparts) and impressive dorui (earthen embankments) surrounding the ruins of a gate. The donjon is a 1967 historically inaccurate reconstruction and does not represent any structure that used to exist. In 1989 one of the castle's gatehouses was reconstructed from wood, which has a more authentic feel to it. One original historic structure exists today, a small gate relocated offsite at nearby Ryōsenji in the Meiji Period after having been used as part of the Jin'ya (fortified administrative center for lords or bureaucrats without a castle) which was built on the old castle site in 1684.