横須賀藩
was a "daimyō" in mid-Edo period Japan, who ruled Yokosuka Domain in Tōtōmi Province. He also served as an official within the administration of Tokugawa shogunate, rising through the ranks first as "Sōshaban," "Jisha-bugyō", "Wakadoshiyori", and finally to the position of "Rōjū".