Carlsten Fortress
Admin2023-07-29T07:51:46+02:00Carlsten Fortress - the Protector of Marstrand! Up until the peace at Roskilde in 1658 Marstrand belonged to Denmark-Norway. After the peace the Swedish King Karl X Gustav visited Marstrand and decided to improve the smaller fortifications built by the Norwegians. This is also why it was named Karlsten. Shortly thereafter in 1677 a Norwegian [...]