| 1．Mito Castle | ||||||
| Mito Castle was a 12th-century Japanese castle with an extensive history, now in ruins, located in what was Hitachi Province.[1] The castle ruins are located in the city of Mito, Ibaraki Prefecture, Japan. | ||||||
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| 2．Tsuchiura Castle | ||||||
| Tsuchiura Castle (土浦城, Tsuchiura-jō) is a flatland-style Japanese castle located in Tsuchiura, southern Ibaraki Prefecture, Japan. At the end of the Edo period, Tsuchiura Castle was home to the Tsuchiya clan, daimyō of Tsuchiura Domain. The castle was also known as "Ki-jō" (亀城, Turtle Castle). The early history of Tsuchiura Castle is not clear, and per folklore the original castle was founded in the Heian period by Taira no Masakado. During the Sengoku period, the area around Tsuchiura was controlled by the Oda clan, who were later destroyed by the Yūki clan. After the Battle of Sekigahara, and the establishment of the Tokugawa shogunate, the Yūki were relocated to Fukui Domain in Echizen Province and a portion of their vacated domain was given to Matsudaira Nobukazu as a reward for his rear-guard action in the Battle of Sekigahara. His son, Matsudaira Nobuyoshi, laid out the foundations of the castle town and built a number of gates on the Mito Kaidō highway linking Edo with Mito. | ||||||
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| Type： flatland-style Japanese castle | ||||||
| 3．Koga Castle | ||||||
| Koga Castle (古河城, Koga-jō) was a Japanese castle located in Koga, Ibaraki Prefecture, Japan. During the Muromachi period, Koga was the seat of the Kantō kubō, under the Ashikaga clan. At the end of the Edo period, Koga Castle was the administrative center of Koga Domain, which was held by a large number of fudai daimyō clans, spending the longest time under the control of the Doi clan (1633-1681, 1762–1871). | ||||||
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| Type： flatland-style Japanese castle Builder ： Muromachi period Buildyear ： Doi clan | ||||||
| 4．Kasama Castle | ||||||
| Kasama Castle (笠間城, Kasama-jō) is a Japanese castle located in Kasama, central Ibaraki Prefecture, Japan. At the end of the Edo period, Kasama Castle was home to a junior branch of Makino clan, daimyō of Kasama Domain, but castle and domain went through many changes in clans during the early Edo period. | ||||||
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| Type： mountain-style Japanese castle Builder ： 1219 Buildyear ： Kasama Tomonari | ||||||
| 5．Oda Castle | ||||||
| Oda Castle (小田城, Oda jō) is a hira-style Muromachi period Japanese castle located in what is now the city of Tsukuba, Ibaraki Prefecture, in the northern Kantō region of Japan. It has been protected by the central government as a National Historic Site since 1935.[1] | ||||||
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| Type： hira-style Japanese castle Builder ： Kamakura period Buildyear ： Hatta clan | ||||||
| 6．Seki Castle (Chikusei) | ||||||
| Seki Castle (関城, Seki-jō) is a hirayama-style Kamakura period Japanese castle located in the Makabe District, Hitachi Province in what is now the city of Chikusei, Ibaraki Prefecture, in the northern Kantō region of Japan. The ruins have been protected as a National Historic Site since 1934.[1] | ||||||
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| Type： hirayama-style Japanese castle Builder ： 1192 AD Kamakura period Buildyear ： Seki clan | ||||||
| 7．Makabe Castle | ||||||
| Makabe Castle (真壁城, Makabe-jō) was a Sengoku period "hirayama"-style castle located in the Makabe neighborhood of the city of Sakuragawa, Ibaraki Prefecture, Japan. The ruins have been protected as a National Historic Site since 1994.[1] | ||||||
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| Type： Hirayama- style Japanese Builder ： 1172 |