 | This article includes a list of references, related reading, or external links, but its sources remain unclear because it lacks inline citations. (March 2013) |
| Carlsten | |
|---|---|
Karlstens fästning | |
| Marstrand in Sweden | |
 Carlsten Fortress, 2009. | |
  Carlsten | |
| Coordinates | 57°53′10″N 11°34′42″E / 57.88611°N 11.57833°E |
| Type | Fortification |
| Site information | |
| Controlled by | Norway, Denmark–Norway, Sweden |
| Open to the public | Yes |
| Site history | |
| Built | 1658–1860 |
| In use | 1658–1882 |
| Materials | Granite, brick |
| Battles/wars | Battle of Marstrand Attack on Marstrand |
Carlsten (Swedish: Karlstens fästning) is a stone fortress located at Marstrand, on the western coast of Sweden. The fortress was built on the orders of King Carl X of Sweden following the Treaty of Roskilde, 1658 to protect the newly acquired province of Bohuslän from hostile attacks.[1] The site of Marstrand was chosen because of its location and its access to an ice free port. The fortress was decommissioned as a permanent defense installation in 1882, but remained in military use until the early 1990s.[2]
- ^ "Carlstens Fästning | Om fästningen". 2012-02-25. Archived from the original on 2012-02-25. Retrieved 2023-06-29.
- ^ "Welcome to Carlstens Fortress Marstrand". 2003-12-07. Archived from the original on 2003-12-07. Retrieved 2021-07-21.