Images: Daniel O'Grady
中川氏1600 - 1871
岡城Oka Castle is classified as a mountain castle, and is located in Ōita Prefecture. During the pre-modern age, it found itself within the borders of Bungo Province. It is associated with the Ogata, Nakagawa clans. Dates in use: 1185 - 1871.
Few castles in Japan have had as long a history as this one. Oka castle was built and expanded upon in stages over a period of almost 500 years and was initially a castle aligned with the Minamoto clan during their battles with the Taira. The remnant stone walls & foundations stretch for several kilometres.
There was once a turret called the Suzumi (Cooling Oneself) Yagura for the ladies of the castle. Other buildings included, the main tower - Gosangai Yagura, the Tsukimi Yagura and the Ofuro Yagura.
|1185||Said to have been constructed by Ogata Saburo Koreyoshi.|
|1300's||During the mid 1300's, the castle was granted to, and repaired by, the Shiga clan who were subordinate to the Ōtomo clan.|
|1586||The castle garrison, under the command of Shiga Chikayoshi, resisted the attacks of the Shimazu clan.|
|1593||The Ōtomo had their lands, and thus that of the Shiga's confiscated.|
|1594||The Nakagawa clan were transferred here and remained for 14 generations. The castle was remodeled over the following two years.|
|1663||The castle was enlarged with the addition of the Nishi no Maru making it a truly giant mountain castle.|
|1769||The Sankai turret (三階櫓), the castle's de facto Tenshu, collapsed due to an earthquake.|
|1771||The majority of the castle's building were lost to fire. The fire had originated in the castle town.|
|1774||The three-layered tower (三階櫓) was rebuilt.|
|1871||The castle was decommissioned.|
|1874||A vote took place that the buildings of Oka castle, along with those of four other castles in Ōita, be torn down and their materials be used for other building projects.|
|1926||Designated a National Historic Site.|
|Site||National Historic Site|