Gokan Castle was built by Yoda Tadamasa around 1441. It was the home of the Gokan for 3 generations and 90 years. After the Yoda moved to Itahana Castle, Gokan Castle was controlled by the Hojo who were fighting with the local Nitta clan. The Nitta wrestled away control of Gokan Castle in 1560 and changed their name to Gokan. The Gokan allied themselves with the Takeda and ruled over Gokan Castle until 1582. After the fall of the Takeda, the castle was attacked and taken by Oda Nobunaga's retainer Takigawa Kazumasa. At this time the Gokan were still allied with the Hojo and moved to Maebashi Castle. Takigawa left after he lost at the Battle of Kanazawa and the castle was claimed by the Gokan under the banner of the Hojo. At the Siege of Odawara the Gokan were also besieged at Odawara castle. After the fall of the Hojo, Gokan Castle was abandoned.
It seems there is a bus from Annaka Station too, but Isobe is closer so I cycled from here. This is a neat little castle and well worth the time to visit if you are in the area. Nearby you'll also find Matsuida Castle and Isobe Castle which could round out a nice day of castle visits.
|English Name||Gokan Castle|
|Castle Condition||Ruins only|
|Designations||Local Historic Site|
|Historical Period||Pre Edo Period|
|Access||Isobe Sta. (Shin’etsu Line), 60 mins walk|
|Visitor Information||park, open any time|
|Time Required||60 mins|
|Location||Annaka, Gunma Prefecture|
|Coordinates||36° 19' 46.56" N, 138° 50' 29.90" E|
|Visits||October 18, 2015|
|Added to Jcastle||2016|