| Name | Carlsten |
| Image |  |
| Style | |
| Date demolished | |
| Type | |
| Use | |
| Administrative division | Västra Götaland County |
| Continent | Europe |
| Date completed | 1658 |
| Date Start construction | 17th century |
| Website | https://carlsten.se/ |
| Height (m) | |
| City | Marstrand |
| Country | Sweden |
| Latitude (°) | 57.8861111111 |
| Longitude (°) | 11.5783333333 |
| Original_owner/Owner/Protection | Charles x gustav of sweden, National Property Board of Sweden |
| entities - castle2 Relations |