Odawara Castle
Odawara was a stronghold of the Doi clan during the Kamakura period, and a fortified residence built by their collateral branch, the Kobayakawa clan, stood on the approximate site of the present castle. After the Uesugi Zenshū Revolt of 1416, Odawara came under the control of the Omori clan of Suruga. They were in turn defeated by Ise Moritoki of Izu, founder of the Odawara Hōjō clan in 1495. Five generations of the Odawara Hōjō clan improved and expanded on the fortifications of Odawara Castle as the center of their domains, which encompassed most of the Kantō region.