Terabe Castle was a possession of the Ogasawara clan of Mikawa Province.

The Siege of Terabe Castle was Matsudaira Motoyasu's first battle, who would later change his name to Tokugawa Ieyasu.

The castle was built on the north shore of Mikawa Bay, in what is now called Hazu, in the city of Nishio, Aichi Prefecture.

Terabe Castle was the first of a series of battles waged against the Oda clan.

[2] Motoyasu's forces attacked Terabe Castle, but were driven off by reinforcements sent by Oda Nobunaga.