Lifespan: Eishō 14 (1517) to 4/15 of Eiroku 4 (1561)
Father: Matsudaira Tadasada
Siblings: Yoshikage, Sadamasa, Asano Sadakiyo, Yasusada, Ichikawa Yoshiyuki, Kageyuki, sister (wife of Ōhara Masachika), sister (wife of Inō (Unknown)), sister (formal wife of Suganuma Sadamura), sister (wife of Yamamoto Kaga), sister (wife of Ogasawara Shuzen), sister (wife of Sano Magotarō)
Children: Koretada, daughter (formal wife of Matsudaira Kiyomune), daughter (second wife of Matsudaira Nobukazu)
Matsudaira Yoshikage served as a bushō during the Sengoku period. He was also known under the names of Matahachirō and Ōinosuke.
Yoshikage was the second head of the Fukōzu-Matsudaira family, a branch of the Matsudaira clan based in Mikawa Province. The Fukōzu-Matsudaira were included among the Eighteeen Matsudaira Families which referred to eighteen cadet families of the main branch of the Matsudaira clan that existed in the era of Tokugawa Ieyasu. Yoshikage was the lord of Fukōzu Castle.
Yoshikage was born as the son of Matsudaira Tadasada.
In 1561, at the Battle of Zenmyōtsutsumi, Yoshikage led a contingent of fifty mounted soldiers to attack a larger group of Kira forces near Nakashima. After gaining the upper hand, he relentlessly pursued the Kira forces, but get trapped by enemy ambushes in Kira-held territory, and, along with his party, was killed in action. His head was buried at Mukaino.
Based on the diary of a grandson, there is an alternate theory that he died in 1556.