Tokugawa Mitsukuni (11 July 1628 - 14 January 1701) was a prominent daimyo who was known for his influence in the politics of the early Edo period. He was the third son of Tokugawa Yorifusa (who in turn was the ninth son of Tokugawa Ieyasu) and succeeded him, becoming the second daimyo of the Mito Domain. At age 63, he was awarded the court office of gon-ch?nagon, or provisional middle counsellor. He posthumously received the court rank of junior first rank (1869) and first rank (1900). In 1691, he retired to his villa, Seizan-s?. He died there a decade later.