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Danish Warship ‘Dannebroge’ Unearthed After 225 Years Beneath Copenhagen Harbor
Marine archaeologists have made a remarkable discovery in Copenhagen Harbor-a Danish warship sunk more than two centuries ago during the Battle of Copenhagen in 1801. The wreck of the Dannebroge, Admiral Horatio Nelson’s prime target in the fierce naval battle, was found resting 50 feet underwater, along with personal artifacts including part of a sailor’s lower jaw.
The excavation, led by Denmark’s Viking Ship Museum, coincides with the 225th anniversary of the battle. Museum experts described the find as deeply significant to Danish national identity. “This wreck tells a story we’ve never really seen before-the reality of being onboard a ship under heavy fire,” said Morten Johansen, head of maritime archaeology.
The Dannebroge, a 157-foot flagship commanded by Commodore Olfert Fischer, was heavily damaged by British cannon fire and engulfed in flames before it exploded and sank. The battle was brutal, with thousands of casualties, and played a pivotal role in breaking up a Northern European alliance. Nelson’s aggressive tactics and his famous phrase, “I have only one eye, I have a right to be blind sometimes,” remain etched in naval lore.
Working in near-zero visibility through thick sediment, divers have uncovered cannons, uniforms, shoes, bottles, and fragments of the ship’s structure matching historical records and tree-ring dating. Among the finds is a lower jawbone, possibly belonging to one of the 19 crew members lost and never accounted for.
Time is of the essence, as the wreck site lies within an area slated for the Lynetteholm megaproject-a massive new housing development planned for completion by 2070. Archaeologists began their underwater survey late last year in hopes of preserving what they can before construction begins.
Diver Marie Jonsson described the challenging conditions: “Sometimes you can’t see anything, so you have to feel your way with your fingers.” Yet these painstaking efforts bring researchers closer to the human stories behind the historical event. “There are bottles, ceramics, even basket fragments-you get closer to the people onboard,” she said.
The Dannebroge discovery adds to a growing list of significant maritime finds in the region, including a 17th-century Swedish shipwreck recently exposed by low Baltic Sea levels and cargo from a British-seized Danish ship uncovered last year.
As archaeologists continue their work, the wreck promises new insights into a battle that shaped Denmark’s history and the lives of those who fought and perished on that fateful day in 1801.