Ragnhildsholmen, Medieval castle ruins on an islet near Gothenburg, Sweden.
Ragnhildsholmen is a castle ruin on an islet near Gothenburg, built from stone and laid out with defensive intent. The site features walls forming a square courtyard with a tower positioned on the eastern side.
A Norwegian king built this border fortress around 1250 to defend his southeastern territory and the nearby city of Kungahälla. It served as a key strategic point controlling the region during the medieval period.
The name honors Queen Ragnhild, a figure connected to the fortress's royal history. The remaining stones today serve as a tangible link to that distant period of nobility and power.
To visit the ruins, follow Kongahällavägen road toward Säve where signs point to a designated parking area nearby. Once parked, the site is easily accessible on foot.
Excavations in 1881 uncovered medieval objects such as coins, weapons, and household items from daily life at the fortress. These discoveries reveal details about how people actually lived within these walls.
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