Mutsuna Castle (Mikawa)


MikawaMutsunajou (1).JPG


Mutsunajō was the castle of Naruse Masayoshi in the mid' 16th century. The Naruse Clan relocated here from Kageyamajō a little to the north. The Naruse Clan are famous as the latter day lords of Inuyamajō. During the Mikawa Ikkō-Ikki rebellion, the castellan was Ao Nobumori, who had relocated from Hadanashijō.

Various castellans commanded the fort under the aegis of the Matsudaira, including Andō Naotsugu, Hachiya Sadatsugu and Torii Tadahiro. The Torii Clan, based at Watarijō over the river, are thought to have been in charge of Mutsunajō whilst the Naruse were at Kageyamajō in the mid' 15th century. The reason for various castellans at Mutsunajō is due to casualties in war. Hachiya Sadatsugu died from wounds by gunshot sustained at Yoshidajō in 1564. Torii Tadahiro and Naruse Masayoshi were both slain at the battle of Mikataǵahara in 1572. Andō Naotsugu was likely the last lord of the castle, ruling until 1590 at the latest.

Visit Notes

Mutsunajō's location is roughly analogous to the Mamiya Heritage Park, which shows ruins from the ancient past. The site is on slight elevation overlooking the Oto River. The fort would've been safe when the river flooded. No ruins of medieval fortifications remain, however.

See also Kageyama Castle (Mikawa) and Yoshida Castle.

  • Site of the fort is now Mamiya Heritage Park; footprint of ancient pit home and pottery shown

Castle Profile
English Name Mutsuna Castle (Mikawa)
Japanese Name 三河六名城
Founder Torii Clan?
Year Founded 15th Century
Castle Type Fortified Manor
Castle Condition Ruins only
Historical Period Pre Edo Period
Visitor Information
Access Mutsuna Station on the Aichi Loop Line; 7 minute walk
Visitor Information 24/7 free; park
Time Required 10 minutes
Location Okazaki, Aichi Prefecture
Coordinates 34° 56' 45.46" N, 137° 9' 6.26" E
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Added to Jcastle 2023
Contributor ART
Admin Year Visited Viewer Contributed
Friends of JCastle
Jōkaku Shashin Kiroku
Umoreta Kojō
Aichi Shiro

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