Shimotsuma Castle

Shimotsuma Castle is a medieval fortress in Shimotsuma that once covered a large area and was protected by multiple moats and earthen fortifications on its northern side. The ruins today form a park where visitors can walk through the remains and understand the original layout of this strategic stronghold.

The castle was built in 1455 by the Tagaya clan and served as a strategic outpost for several generations. After the Battle of Sekigahara in 1600, the fortress was taken over and lost its military importance.

The Gozutenno shrine, now called Shimotsuma Shrine, stood at the heart of the castle town and drew merchants and samurai families to settle nearby. This sacred place shaped daily life and remains a gathering point for local people.

The site is easy to reach on foot and today offers a well-maintained park with clear paths to explore the former fortress. Visitors should wear comfortable shoes as the ground can be uneven and some areas have steps or slopes to climb.

The fortress cleverly used two nearby rivers and natural marshlands as defense lines, which the builders innovatively integrated into their strategy. These natural barriers were as important as the constructed walls and allowed fewer defenders to protect a larger area.