Sunken warship found off Danish coast after 225 years in ‘remarkable’ discovery

by | Apr 3, 2026 | Science

A warship that sunk after it was attacked by Adm. Horatio Nelson and the British fleet 225 years ago has been found off the coast of Denmark in what’s been called a “remarkable” discovery.Maritime archaeologists from the Danish Viking Ship Museum found the ship, which was sunk during the the Battle of Copenhagen in 1801, while surveying the site on the seabed of Copenhagen Harbor ahead of the construction of an artificial island.The archaeologists, who have been working on the excavation of the shipwreck since the end of last year, found the remains of the vessel 15 meters (almost 50 feet) below the water’s surface, where visibility is virtually zero, according to a press release from the museum published Thursday.AdvertisementAdvertisement“We have found Dannebroge and the remains of those who never made it ashore after the battle,” Otto Uldum, maritime archaeologist at the Danish Viking Ship Museum, said in the release.Uldum said that the ship’s dimensions “correspond exactly” to surviving drawings of it, adding: “The area is littered with cannonballs and bar shot. And yes, we have found two cannons.”The items recovered, including this glass flask, are all now being surveyed and documented by the museum team. – The Viking Ship Museum in RoskildeThe team of archaeologists had been sent to survey the scene ahead of plans to develop a controversial infrastructure scheme.Lynetteholm is intended to be a 271-acre man-made peninsula devised to shield Copenhagen from rising sea levels. There has been considerable protests about the potential impact on the environment.AdvertisementAdvertisementThe museum said that the sunken ship is the Dannebroge, which on the morning of April 2, 1801 was anchored in the harbor as part of the Danish-Norwegian defense against British naval commander Nelson’s fleet.But that day, the Battle of Copenhagen broke out.Danish sailors spent four hours battling the superior British forces but were ultimately defeated, according to the museum. Heavily hit, the Dannebroge caught fire and then exploded. A ceasefire was declared soon afterwards.The battle is well documented in the country’s history book …

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