Yada Sakujūrō served as a bushō during the Sengoku period.

Sakujūrō served two generations of the Matsudaira clan – Matsudaira Hirotada and Matsudaira Motoyasu (later known as Tokugawa Ieyasu) in Mikawa Province.  Along with Kakei Masashige and Hachiya Sadatsugu, he was known as a fierce warrior.  In 1563, Sakujūrō served as a commander of ikki forces opposing Ieyasu during the Mikawa Ikkō-ikki.  On 11/25 of the same year, he was killed in action at Azukizaka in the Nukata District of Mikawa.