Hara Castle built
1496 CE.
Shown on the map at 32.633°, 130.256°.
The Hara Castle (原城, Hara-jō) was a Sengoku period Japanese castle cemetery located in the Minami-Arima neighbourhood of city of Minamishimabara, Nagasaki Prefecture Japan. Its ruins were designated a National Historic Site of Japan in 1938.
Text from the Wikipedia article Hara Castle, licensed CC BY-SA 4.0.