里見氏
The area of present-day Tateyama was part of ancient Awa Province, dominated by the Satomi clan during the Sengoku period, who ruled from Tateyama Castle. After the Edo period, most of the territory was part of the feudal domain of . After the start of the Meiji period, Tateyama Town (in Awa District), Chiba Prefecture was proclaimed on April 1, 1889 with the creation of the modern municipalities system. Tateyama annexed neighboring Toyosu Village on April 1, 1914, and merged with Hōjō Town to form Tateyamahōjō Town on April 18, 1933.