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Articles from Hiroto Uehara

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Hiroto Uehara
Hiroto is an ordinary Japanese office worker, but his true mission is searching for castles on the weekend.
  1. Kokokuji Castle

    Kokokuji Castle (興国寺城 Kōkokuji-jō, also known as 根古屋城 Negoya-jō) is located in Numazu in Shizuoka Prefecture. It was constructed some time between 1469 and 1487 and given to Hōjō Soun (or Ise Shinkuro at that time) for services rendered to the Imagawa clan. The rise of the Late Hōjō in the Kantō...
  2. Kogane Castle

    Takagi Taneyoshi (高城 胤吉, 1484 or 1501-1565), a vassal of the Hara clan, built Kogane Castle (小金城) in 1537 by order of the Chiba clan, themselves descendants of the Taira and rulers of Shimōsa Province (in modern-day Chiba). The Takagi controlled large lands in northwestern Chiba, including...
  3. Sugiyama Castle

    Sugiyama Castle (杉山城 Sugiyama-jō) was a hilltop castle located in modern-day Ranzan, Saitama Prefecture. Constructed on a mountain ridge at the edge of the Kantō plain it was overlooking the old Kamakura Highway, the modern-day Kanetsu Expressway. Making perfect use of the steep topography more...
  4. Sugaya Castle

    Sugaya Castle (菅谷城) is located in Ranzan, Hiki District, in Saitama Prefecture and allegedly the site of the former residence of Hatakeyama Shigetada, an important retainer of the Kamakura Shogunate in the early Kamakura period (1185-1333). The castle was designated a National Historic Site in...
  5. Ogura Castle

    Ogura Castle (小倉城) is a Sengoku-era hilltop castle located in Tokigawa Town, Saitama Prefecture. It stretched over three mountain ridges and was situated just 600 meters from the Tsuki River, forming a natural stronghold that allowed to monitor the traffic on the river. It was fortified with...
  6. Tenjinyama Castle

    This article is about castle ruins that are a little bit different from what we usually explore. Tenjinyama Castle (天神山城) is located in Nagatoro, Saitama Prefecture, on top of a hill on the eastern bank of the Arakawa River. The map is based on Google Earth; the location of enclosure may not be...
  7. Hachigata Castle

    Hachigata Castle (鉢形城), located in Yorii-machi, Saitama Prefecture, is a hilltop castle (山城 yamashirō) that formed a natural fortress between the Arakawa River and the Fukazawa River. Modern-day Yorii is an important traffic hub where JR Hachikō Line, Tōbu Tōjō Line and Chichibu Railway...
  8. Koga Castle

    Koga City is situated on the westernmost tip of Ibaraki Prefecture, at the confluence of Tone River in the south and Watarase River in the west. The town prospered as an important traffic point along the Nikko Highway. Koga Castle (古河城 Koga-jō) was built in the late Heian Era on the banks of the...
  9. Masugata Castle

    Masugata Castle (枡形城 Masugata-jō) is located in Tama Ward, Kawasaki, Kanagawa Prefecture. The castle was constructed on a hill facing the southern banks of Tama River. (This map bases on Tokyo Terrain Map powered by gridscapes.net ) The castle site formed a formidable stronghold, surrounded by...
  10. Kozukue Castle

    The remains of Kozukue Castle (小机城 Kozukue-jō) are located in present-day Kōhoku Ward, Yokohama. The castle was thought to be built by the Uesugi clan during the Eikyō Rebellion (永享の乱 Eikyō-no-ran) in 1438/39. The Uesugi were a powerful samurai family that descended from the Fujiwara and that...
  11. Sakura Castle

    Sakura Castle (佐倉城 Sakura-jō) is located in the city of Sakura in Chiba Prefecture and was constructed on the 30-meter-high Kashima plateau. Due to its elaborate use of the natural topography it was an impregnable location surrounded by marshes and rivers. The map is based on Google Earth. The...
  12. Usui Castle

    Usui Castle (臼井城) is a hilltop castle near present-day Sakura City, Chiba Prefecture. Its ruins are now part of Usui Castle Park. The castle is located on a plateau overlooking Lake Imbanuma to the north-east. According to legend Usui Tsuneyasu (臼井常安, 1106-1168) founded the castle. The Usui were...
  13. Konodai Castle

    When you cross Edo River on Keisei Line toward Chiba, you can see a huge plateau on the opposite bank. This is the Kōnodai (国府台) plateau with its long history that not only encompasses a Sengoku-era castle but reaches back to Paleolithic settlements. (This map bases on Tokyo Terrain Map...
  14. Setagaya Castle

    Once upon a time, right in the center of Tōkyō's Setagaya Ward near the present-day ward office, there was a small fortress called Setagaya Castle (世田谷城). The ancient castle was located on the tip of a tongue-shaped plateau that stretched south from the hills between Gōtōkuji (豪徳寺駅) and Kyōdō...
  15. Inohana Castle

    Inohana Castle (亥鼻城 ), also known as Chiba Castle, is located in Chiba City and was constructed on the Inohana Plateau, close to the present-day Chiba Prefectural Office. The Chiba clan (千葉氏), a cadet branch of the Kanmu Heike clan,* established a fortification there as early as 1126. For some...
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