Jouguuji Castle


Jouguujijou (3).jpg


Jōgūji was a long-standing temple even by the middle ages, with claims of having been founded by Shōtoku-taishi. The temple was certainly in place by the early 13th century when it switched between denominations. 23rd head priest, Rengyō Ajari, brought the temple back into the Jōdoshin faith from Tendai, and the 24th head priest was a direct disciple of Shinran called Sasaki Moritsuna. The area is called Sasaki to this day, and the castle site is also known as Sasakijō.

Jōgūjijō began with the fortification of the temple in the Sengoku period. In 1562, men under Matsudaira Motoyasu (Tokugawa Ieyasu) forcefully entered the temple and stole supplies. This outraged the Mikawa-shinshū faction who rebelled against the fledgling rule of Motoyasu as he tried to unify Mikawa. A merchant was murdered at Jōgūjijō by men from Honshōjijō, after which everything quickly went to pot. The principle fortified temples of Jōgūjijō, Honshōjijō, and Shōmanjijō united to form the Mikawa Ikkō-Ikki, and began an uprising that lasted for a year and a half. Eventually the brotherhood was defeated, with its final devastation coming at the Battle of Azukizaka in 1564, and their forts, temples and dōjō were destroyed. Jōgūji was restored in 1581 as a demilitarised temple at the behest of Myōshunni, the nanny of Tokugawa Ieyasu.

Visit Notes

Jōgūjijō is a fortified temple site in Kamisasaki village, Okazaki Municipality; the fort is / was also known as Sasakijō. No fortification ruins remain, but the temple is still around, though its architecture has been modernised following a fire in 1988 during which the main hall, constructed in 1796, burnt down. Despite there being little to see, I wanted to come here to complete my visitation of a triumvirate of fortified temple sites associated with the Mikawa Ikkō-Ikki, the others being Honshouji Castle and Shoumanji Fort.


Castle Profile
English Name Jouguuji Castle
Japanese Name 上宮寺城
Alternate Names Sasakijō
Founder Mikawa Ikkō-Ikki
Year Founded Before 1562
Castle Type Flatland
Castle Condition Ruins only
Historical Period Pre Edo Period
Visitor Information
Access Nishi-Okazaki Station on the Tōkaidō Main Line; 10 minute walk
Visitor Information 24/7; Free; Temple
Time Required 10 minutes
Website id=11
Location Okazaki, Aichi Prefecture
Coordinates 34° 56' 31.45" N, 137° 7' 26.65" E
Loading map...
Added to Jcastle 2023
Contributor ART
Admin Year Visited Viewer Contributed
Friends of JCastle
Umoreta Kojō

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