Tokugawa Ietsuna
Tadatomo became daimyō of Karatsu on the death of his brother in 1670. He was appointed as a "rōjū" under "shōgun" Tokugawa Ietsuna in 1677. His courtesy title was changed at that time from "Dewa no Kami" to "Kaga no Kami," and his court ranking elevated from lower 5th to lower 4th.