Ōtomo Yoshimune was a Japanese daimyō of the Sengoku period, heir of Otomo Sōrin at the head of the Ōtomo clan. He was the eldest son and successor of Otomo Sōrin as lord of the Bungo Province. His mo

Saiki Castle was an Edo period yamajiro-style Japanese castle located in the city of Saiki, Ōita Prefecture, Japan. Its ruins have been protected as a National Historic Site since 2023. It is No.194 o