The Satake clan (佐竹氏 Satake-shi) was a Japanese samurai clan that claimed descent from the Minamoto clan. Its first power base was in Hitachi Province. The clan was subdued by Minamoto no Yoritomo in the late 12th century, but later entered Yoritomo's service as vassals. In the Muromachi period, the Satake served as provincial deputy (shugo) of Hitachi Province (today Ibaraki prefecture), under the aegis of the Ashikaga Shogunate. The clan sided with the Western Army during the Battle of Sekigahara, and was punished by Tokugawa Ieyasu, who moved it to a smaller territory in northern Dewa Province (northern Honshū) at the start of the Edo period. The Satake survived as lords (daimyō) of the Kubota Domain (also known as the Akita Domain). Over the course of the Edo period, two major branches of the Satake clan were established, one ruled the fief of Iwasaki, the other one the fief of Kubota-Shinden. During the Boshin War of 1868-69, the Satake were signatories to the pact that formed the Ōuetsu Reppan Dōmei, but after internal debate and a disagreement with the Sendai Domain, the clan switched sides and joined the imperial forces in subduing the alliance. As with all other daimyō families, the Satake clan was relieved of its title in 1871.