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Danish Warship Sunk by Nelson's British Fleet Discovered After 225 Years

On Tuesday, March 31, 2026, marine archaeologists discovered the Danish flagship Dannebroge on the seabed of Copenhagen Harbor, launching an urgent excavation to recover artifacts before planned harbor construction begins.
The warship sank more than 200 years ago during the 1801 Battle of Copenhagen when the British fleet, led by Admiral Horatio Nelson, attacked and defeated the Danish defensive blockade.
Morten Johansen, head of maritime archaeology at Denmark's Viking Ship Museum, reported recovering significant items including a metal insignia, cannonballs, uniforms, ceramics, and a human jawbone from the wreck.
Diver and marine archaeologist Marie Jonsson described difficult conditions at the site, where thick sediment and nearly zero visibility require researchers to rely on touch to identify buried artifacts.
Researchers hope to uncover personal stories of the crew using dendrochronology, a tree ring dating method, to confirm the Dannebroge's construction year and provide new historical insight into the 1801 battle.

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Bulletin-Review

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Danish warship sunk by Nelson's British fleet discovered after 225 years

Working in thick sediment and almost zero visibility, divers are in a race against time to unearth the 19th-century wreck of the Dannebroge before it becomes a construction site.

5 days ago

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wprost

He Was Listed as Missing for 225 Years. His Remains Were Finally Found.

Underwater archaeologists have discovered the wreck of the Dannebrog, which exploded during the Battle of Copenhagen. This event shaped Denmark's history and sense of identity.

4 days ago

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WXXV 25

Danish warship sunk by Nelson’s British fleet discovered after 225 years - WXXV News 25

By JAMES BROOKS COPENHAGEN, Denmark (AP) — More than 200 years after being sunk by Adm. Horatio Nelson and the British fleet, a Danish warship has been discovered on the seabed of Copenhagen Harbor by marine archaeologists. Working in thick sediment and almost zero visibility 15 meters (49 feet) beneath the waves, divers are in a race against time to unearth...

6 days ago

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