The ruins of a Sengoku-period mountain castle situated on a hill in Tsumagi-cho, Toki City. Developed as the residence of the Tsumaki clan, it was abandoned after the Battle of Sekigahara. The castle was defended for generations by the Tsumaki clan, a branch family of the Toki clan, and its earthworks — including terraced compounds, ramparts, and trench cuts — remain well preserved today. The site…

Tsumagi Castle was a mountain fortress built by the Tsumaki clan, a branch family of the Toki clan who served as military governors (shugo) of Mino Province during the Muromachi period. The Tsumaki held the Tsumagi area of what is now Toki city and developed this hilltop castle as their seat of powe…