히타치 국
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.