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Castle in Ranzan,Saitama

1.Sugaya Yakata
Sugaya Yakata (菅谷館) was a Japanese castle located in what is now the town of Ranzan, Hiki District, Saitama, Japan. Its ruins have been protected as a National Historic Site, since 2008.[1]
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2.Sugiyama Castle
Sugiyama Castle (杉山城, Sugiyama-jō), also known as Makino Castle, was a Sengoku period Japanese castle located in what is now part of the town of Ranzan, Hiki District, Saitama, in the Kantō region of Japan.[1] The site was designated a National Historic Site.[2][3] Its ruins have been protected as a National Historic Site, since 2008.[4]
Wikipedia  detail