In this Japanese name, the family name is Tokugawa.
Tokugawa Shigeyoshi (徳川 重好, March 17, 1745 – August 22, 1795) was a Japanese samurai of the mid-Edo period who was the founder of the Shimizu-Tokugawa family, one of the Gosankyō, the three lesser branches of the Tokugawa family. He was the second son of Tokugawa Ieshige, the ninth shogun.
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The original article can be found at Tokugawa Shigeyoshi and the edit history here.