Bohus Fortress - Loss To Sweden

Loss To Sweden

Under the terms of the Treaty of Roskilde in 1658, Denmark–Norway ceded the Danish provinces of Scania, Blekinge and Halland (the latter was agreed to be Swedish for a period of 30 years after the Peace of Brömsebro, but was in the treaty of Roskilde given to Sweden permanently) and the Norwegian provinces Trondhjem and Bohuslän (including Bohus Fortress).

After Denmark–Norway ceded the territory which included Bohus Fortress, Fredriksten Fortress was constructed in Fredrikshald on the newly established Norwegian-Swedish border.

Since Bohus Fortress no longer lay on the border, it was of minimal future use to Sweden, which relied on the existing Älvsborg Fortress at Gothenburg and a new Carlsten Fortress erected at Marstrand.