Oshi Castle (Oshi-jo) was built by the daimyo Narita Akiyasu near the end of the 15th century. It was considered impregnable, and was built using the natural levee of the surrounding marshlands and river. When it was attacked by the army of Toyotomi Hideyoshi (who ruled Japan in the latter half of the 16th century) it was besieged by over 20,000 soldiers. The castle did not fall even when it was flooded by water drawn in from the nearby river. After that it was rumored that the castle had been able to withstand the flood because it floats on water. The largest turret in Oshi Castle is Gosankai Yagura, although it was demolished in the latter half of the 19th century when political power changed from the Edo shogunate to the Meiji government, due to its condemnation as a symbol of the samurai. The existing turret was reconstructed in 1988.
- 17-23 Honmaru, Gyoda-shi, Saitama
- Admission Fee
- 200 yen
The next day of each national holiday (except Saturdays and Sundays)
The 4th Friday of each month (except national holidays)
New Years holidays
- [Bus]JR Fukiage Station/Bus/15min./Oshijo Bus Stop/On foot/2 min.[Walk]Chichibu Railway Gyoda Station/On foot/15 min.