Amago clan
From the Kamakura period Oki Province was governed primarily by the "shugo" of Izumo Province. In the Muromachi period, it was ruled successively by the Sasaki clan, the Yamana clan and the Kyōgoku clan. In the Sengoku period the Amago clan held this province. After the Amago fell and the Tokugawa shogunate was established, Oki Province was declared a "tenryō" dominion under the direct control of the "shōgun". The "daimyō" of Matsue Domain, belonging to the Matsudaira clan, was appointed as governor.