Hakoinen Castle

Hakoinen Castle (Hakoisten linnavuori in Finnish) is the ruins of a fortification on a hill in Janakkala, Finland.

Dated to the medieval period, the fortification was situated on a very steep-sided rock by Lake Kernaala (Kernaalanjärvi) in a manner reminiscent of the hill fort tradition.

The top of the rock is 63 metres (207 ft) above the water level of the lake.

[citation needed] The name of the castle is not historical and was taken from the nearby Hakoinen mansion (Haga gård in Swedish).

It has been speculated that Hakoinen might have been the fort that was attacked by invading Novgorodian forces in 1311 during the Swedish-Novgorodian Wars, as described in the Novgorod Chronicle:[4] Eventually Hakoinen was abandoned.

Hakoinen Castle viewed from the south in 2024
Illustration of Hakoinen castle in Finland framstäldt i teckningar edited by Zacharias Topelius and published 1845-1852.