was a Sengoku period castle located in eastern Mikawa Province in what is today part of the city of Shinshiro, Aichi Prefecture, Japan. A fortified residence was constructed on this site by Suganuma Sadanori in 1508. The Suganuma clan were a subordination branch of the Okudaira clan, who ruled most of Mikawa Province. The castle was seized by the Imagawa clan in 1560, shortly before their defeat at the Battle of Okehazama in Owari Province. Suganuma Sadamitsu recovered the castle in a night battle in 1562. However, in 1571, a reconnaissance-in-force by the Takeda clan, led by Yamagata Masakage took the castle and held it briefly with little difficulty. When the armies of the Takeda clan, led by Takeda Shingen invaded Mikawa Province in 1573, the Takeda clan attempted to seize Noda Castle o