Oka Castle
| Oka Castle (岡城, Oka-jō) was a Sengoku to Edo period yamajiro-style Japanese castle located in the city of Taketa, Ōita Prefecture, Japan. Its ruins have been protected as a National Historic Site since 2023.[1] | ||||||
| Type： yamajiro-style Japanese castle | ||||||
| Built： c.1185 | ||||||
| Builder： Ogata Koreyoshi | ||||||
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