Tokugawa Munetake

He was the second son of the eighth shōgun Tokugawa Yoshimune with his concubine, Okon no Kata.

Munetake was considered by some as the logical choice for heir, as he was both physically fit and also well-educated.

However, Yoshimune preferred the route of primogeniture, instead selecting his son Ieshige as heir.

He had several sons who were brought up in this spartan environment, one of whom was the famed reformer Matsudaira Sadanobu.

He studied under Kada no Arimaro and Kamo no Mabuchi, eventually producing the kokugaku texts Kokka hachiron yogen (国歌八論余言) and Tenkō-gon (天降言).