Satomi clan
The Satomi clan, virtually independent rulers of all of the Bōsō Peninsula during the Sengoku period, erected the original Ōtaki Castle in the early 1500s to guard the northern approaches to their domains, but fell into ruins by the end of the 16th century. This period of local hostilities, and the exploits of the Satomi clan, is richly described in the Bōsō Chiran-Ki.