Fredriksten fortress stands on the hill above Halden, built from 1661 and named after King Frederik III. It was designed as Norway's defence against Sweden after the border shifted in 1658, and it served that purpose well. The fortress was besieged six times and never taken.
The most famous event happened on the evening of 11 December 1718. Swedish King Karl XII was inspecting the forward trenches during his army's siege of the fortress. A projectile struck him in the left temple and exited through the right side of his head, killing him instantly. He was 36 years old. The Swedish army withdrew, and the Great Northern War effectively ended.
The bullet that killed Karl XII has been debated for over 300 years. Was it a Norwegian shot from the fortress walls, or was he assassinated by his own side? The entry and exit wounds were consistent with fire coming from the fortress. A 2022 study by Finnish researchers analysed the projectile found in the king's clothing and concluded it was most likely an iron grapeshot, the kind fired from fortress cannons. The assassination theory persists in Swedish popular culture, but the physical evidence points to a Norwegian shot.
The fortress grounds are free to visit year-round. The outer walls, bastions, and moat are impressive even in winter. In summer, the inner fortress hosts a museum covering the military history and the Karl XII story in detail. There are also regular concerts and events on the grounds.
The walk up from Halden town centre takes about 15 minutes and the views over the Iddefjord and into Sweden are worth it on a clear day.
The most famous event happened on the evening of 11 December 1718. Swedish King Karl XII was inspecting the forward trenches during his army's siege of the fortress. A projectile struck him in the left temple and exited through the right side of his head, killing him instantly. He was 36 years old. The Swedish army withdrew, and the Great Northern War effectively ended.
The bullet that killed Karl XII has been debated for over 300 years. Was it a Norwegian shot from the fortress walls, or was he assassinated by his own side? The entry and exit wounds were consistent with fire coming from the fortress. A 2022 study by Finnish researchers analysed the projectile found in the king's clothing and concluded it was most likely an iron grapeshot, the kind fired from fortress cannons. The assassination theory persists in Swedish popular culture, but the physical evidence points to a Norwegian shot.
The fortress grounds are free to visit year-round. The outer walls, bastions, and moat are impressive even in winter. In summer, the inner fortress hosts a museum covering the military history and the Karl XII story in detail. There are also regular concerts and events on the grounds.
The walk up from Halden town centre takes about 15 minutes and the views over the Iddefjord and into Sweden are worth it on a clear day.