- visitdenmark.com denmark/plan-your-trip/museum-…Visit one of Sønderborg's Top-Attractions - Sønderborg Castle, where King Christian II was imprisoned, and learn more about the history of Sønderjylland.
- smalldanishhotels.com attractions/soenderborg-…Sønderborg Castle. Take a walk in the past. The castle was founded before 1200 and was from 1550-70 rebuilt into a four wing Renaissance castle.
- outdooractive.com en/poi/denmark/sonderborg-…The town of Sønderborg arose under the protection of the castle. The strong castle was used as a prison for the Danish King Christian II from 1532 to 1549.
- conferences.au.dk arkiv-nat-tech/…The town grew up around Sønderborg Castle, which was founded during the 1200. Sønderborg is well-known for the castle and for the recurring...
- britannica.com place/SonderborgIt was founded in the mid-13th century around Sønderborg Castle and chartered in 1461. King Christian II was a prisoner at the castle 1532–49.
- discoverdk.com activities/museet-paa-soenderborg-…Sønderborg Castle was built in the first half of the 13. century and is also the castle, where Christian II was kept imprisoned during the years 1532-49.
- hellotravel.com denmark/sonderborg-castleSonderborg Castle Tourism (2024) Denmark: Find top attractions, things to do & activities in Sonderborg Castle, sønderborg.
- OpenTripMap.com en/card/W137006086Sønderborg Castle (Danish: Sønderborg Slot) is located in the town of Sønderborg, Denmark on the island of Als in South Jutland.
- komoot.com guide/370002/castles-in-snderborg...hike outdoors or walk your way around the grounds with a guide — is always something special, and you’ve got 4 beautiful castles to choose from in Sønderborg.
- triphobo.com places/s-nderborg-denmark/s-nderborg…95% of people who visit Sønderborg include Sonderborg Castle in their plan. Number of Times Sonderborg Castle is Added in Itineraries.