Annaka Castle




The castle was built by Annaka Tadamasa to defend against incursions by Takeda Shingen. Tadamasa's son capitulated to Takeda Shingen and joined forces with him remaining as castellan of Annaka Castle. Annaka was killed at the Battle of Nagashino and the castle was abandoned. Due to it's strategic importance along the Nakasendo Road, the Annaka Province was established by the Tokugawa in 1614. Ii Naomasa's eldest son, Naokatsu, was made lord of the new Annaka domain. After the Ii, the lord of Annaka was always chosen from among those most loyal to the Tokugawa because of that important location on the Nakasendo to collect taxes and monitor traffic. Even in the Edo Period there was very little fortification around the castle.

Visit Notes

There is nothing left to see of the castle, but the samurai homes are fantastic. It is worth going out of your way to visit them. In particular, there are only a few examples of an original row house throughout Japan.

Loading map...


Castle Profile
English Name Annaka Castle
Japanese Name 安中城
Founder Annaka Tadamasa
Year Founded 1559
Castle Type Hilltop
Castle Condition No main keep but other buildings
Historical Period Edo Period
Features gates, samurai homes, castle town
Visitor Information
Access Annaka Station (Shin'etsu line), 20 min walk
Visitor Information 9am-5pm (Dec-Feb: 9am-4:30pm); 210 yen entrance fee for the samurai homes
Time Required 45 mins
Website spot/daimyou buke.html
Location Annaka, Gunma Prefecture
Coordinates 36° 19' 45.80" N, 138° 53' 47.58" E
Loading map...
Added to Jcastle 2018
Admin Year Visited 2018
Admin Visits March 11, 2018
(2 votes)
Add your comment welcomes all comments. If you do not want to be anonymous, register or log in. It is free.



33 months ago
Score 0++
Have you heard of "Samurai Marathon"? Or, the 安政遠足. In 1855, the Lord of Annaka had 96 of his retainers do a 30km run starting at the castle. So they hold an event like that annually apparently and last year there was a film loosely based on it.


32 months ago
Score 0++
Wow, never heard of it. The course looks interesting. If I were a runner I would definitely do it. Maybe you should try it! I'll come cheer you on and then visit some castles nearby :)