governors (shugo) of Hitachi Province. They were vassals of the Ashikaga shogunate's Kamakura-kubō, the Kamakura-based official who oversaw the Ashikaga shogunate's affairs in the Kantō region. The Satake clan saw a great deal of military service under the Ashikaga banner. In the Sengoku period, the Satake worked toward unifying the often rebellious clans of the Hitachi region under their control. Satake Yoshishige, family head during the early Sengoku period, was renowned for his ferocity in battle; he was also known by the nickname of . He often fought against the Later Hōjō clan, who were extending their power into southern Hitachi. One such encounter was the Battle of Numajiri, where 20,000 men under Yoshishige fought 80,000 Hōjō troops. The Satake won, due in part to the use of over 8600 matchlock rifles by their troops. In 1586 and again in 1589, the Satake also fought with the Date clan at Sukagawa, but were ultimately defeated by forces under the command of Date Masamune. In 1590, under the headship of Yoshishige's son Satake Yoshinobu, the Satake clan pledged fealty to Toyotomi Hideyoshi during the siege of Odawara. After the fall of Odawara, Hideyoshi accepted them as vassals, and guaranteed their lordship of a 540,000 koku swath of territory in Hitachi Province. Having received recognition from Hideyoshi as the ruler of Hitachi Province, Yoshinobu's drive for unifying the province under his rule was strengthened. He brought nearly all of the province under his control, with the exception of the Tsuchiura and Shimodate areas, the control of which Hideyoshi had assured to the Yūki clan. In 1593, the Satake clan joined in Hideyoshi's invasion of Korea, deploying troops to Nagoya Castle in Hizen Province. Edo era In 1600, the Satake sided with the Western Army at the Battle of Sekigahara, and were discovered to be in secret communication with Ishida Mitsunari, the leader of the Western Army. After the Western Army's defeat by the Eastern forces of Tokugawa Ieyasu, the Satake clan was allowed to remain where they were in Hitachi but they would be punished by the victorious Tokugawa. The clan's income was severely reduced and in 1602 the clan was ordered to relocate to Kubota, a much smaller fief in northern Japan, where they remained until 1871. Kubota's income level was 205,000 koku, and it was classified as an outside (tozama) daimyō. The income level remained constant throughout its history. The