page_title: Edo Castle
section_title: Ō-bansho
hierarchical_section_title: Edo Castle / Ninomaru / Ō-bansho
context_page_description: Edo Castle, also known as Chiyoda Castle, is a flatland castle that was built in 1457 by Ōta Dōkan. It is today part of the Tokyo Imperial Palace and is in Chiyoda, Tokyo, Toshima District, Musashi Province. Tokugawa Ieyasu established the Tokugawa shogunate here. It was the residence of the shōgun and location of the shogunate, and also functioned as the military capital during the Edo period of Japanese history. After the resignation of the shōgun and the Meiji Restoration, it became the Tokyo Imperial Palace. Some moats, walls and ramparts of the castle survive to this day. However, the grounds were more extensive during the Edo period, with Tokyo Station and the Marunouchi section of the city lying within the outermost moat. It also encompassed Kitanomaru Park, the Nippon Budokan Hall and other landmarks of the surrounding area.
context_section_description: The large stone wall in front of the Hyakunin-bansho is all that is left of the Naka-no-mon watari-yagura (Inner Gate Keep). This building to the inner-right side of the gate is the Ō-bansho (大番所). As the Honmaru enceinte was said to begin right behind the Naka-no-mon gate, the Ō-bansho probably played a key role in the security of Edo Castle.
caption: Ō-bansho
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