Tōdō Takatora
Local records state that, by 1331, barricades and small fortresses punctuated the "Jizōgatake", an strategic mound overhanging the . The defensive compound as it stands today, however, was not erected until 1585–1617. Toyotomi Hideyoshi and Tokugawa Ieyasu unification campaigns brought constant shifts on the incumbents of , including Wakisaka Yasuharu, Kobayakawa Takakage, Tōdō Takatora, and Toda Katsutaka warlords. Among them, renown castle designer Takatora is believed to have been the major contributor to the overall outline of the current structure.