The Satomi fought numerous battles with the Later Hōjō clan of Odawara for control of the Kantō region.

Following the Battle of Odawara in 1590, the Kantō region was assigned to Tokugawa Ieyasu, who confirmed the Satomi as daimyō of Awa and Kazusa Provinces, with revenues of 92,000 koku.

Following the Battle of Sekigahara, Satomi Yoshiyasu also gained control of Kashima District in Hitachi Province, which increased his holdings to 122,000 koku.

In 1617, the Tokugawa shogunate established Naitō Kiyomasa as a fudai daimyō, splitting of 30,000 koku of the former Satomi territories centered at Katsuyama and was allowed to build a jin'ya fortified residence, but not a full castle.

In 1668, Sakai Tadakuni who had risen through the administrative ranks within the Tokugawa shogunate, gained the requisite 10,000 koku in revenue to become daimyō and was permitted to revive the defunct Awa-Katsuyama Domain.