Oulu Castle

Oulu Castle (Swedish: Uleåborgs slott, Finnish: Oulun linna) was a late defense castle in Oulu, Finland. It was built on an island in the delta of Oulu River in 1590. The castle was mostly made of wood and earth walls. There probably was an earlier medieval castle on the same site latest by 1375. The Russian Sofia First Chronicle records that in 1377, men from Novgorod tried to conquer a newly built castle in the Oulu River delta but were unsuccessful.

The present-day ruins on Linnansaari Island belong to a later castle, built in 1605 by order of King Charles IX. In a decree issued on 8 April 1605, the king first instructed the construction of Kajaani Castle and then ordered the rebuilding of Oulu Castle. The decree stated that the old wooden structures were to be demolished and replaced with a fortified rampart featuring fire shelters around the island.

The castle was severely damaged in 1715 when Russian forces set it on fire during the Great Northern War. Its final destruction took place on 31 July 1793, at 10:45 p.m., when lightning set one of the powder magazines on fire; as a result, the powder cellar exploded and almost completely destroyed the building.

英語版ウィキペディア「Oulu Castle」より引用、CC BY-SA 4.0。

Oulu Castleは、アトラスの城の知名度ランキングで世界4,591位（全5,479件中）、フィンランドの18件では18位にランクされています。1590年に創建され、アトラスの年代判明済みの城の38%より古い城です（16世紀に創建されたアトラス収録の437件のひとつ）。フィンランドが他とどう比べられるかは、城の統計をご覧ください。

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