Japan Castle Atlas

Ōseki clan

大関氏

Builder and lord records come from the Japan Castle Foundation list and Japanese Wikipedia.

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Connected castles

Kurohane CastleCastleNo photo of this castle yet

Basic information

Ōtawara, Tochigi

Kurohane Castle

黒羽城

LordRecord source: wikipedia

Shirahata CastleCastleNo photo of this castle yet

Basic information

Ōtawara, Tochigi

Shirahata Castle

白旗城

LordRecord source: wikipedia