Johannisborg Fortress Ruins

Norrköping, Sweden

Johannisborg was fortress built by John, Duke of Östergötland, between 1614 and 1639. It was purposed to protect Norrköping increasing clothing and weapon factories. In 1719 Russian army destroyed the fortress in the Great Northern War and only one tower and some walls survived.

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Founded: 1614-1639
Category: Miscellaneous historic sites in Sweden
Historical period: Swedish Empire (Sweden)

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