A team of maritime archaeologists in Denmark says it has identified the wreck of the Dannebroge, a warship that served as a command vessel during the Battle of Copenhagen and sank after a violent explosion more than two centuries ago.
The discovery, made in Copenhagen Harbor, is being described as the first direct archaeological evidence linked to the fierce naval battle fought on April 2, 1801, between the Danish-Norwegian fleet and the British Royal Navy under Adm. Horatio Nelson.
Researchers from the Danish Viking Ship Museum uncovered the remains during an excavation connected to construction work for Lynetteholm, an artificial island project. The museum oversees seabed archaeology in eastern Denmark and has been examining the harbor floor as part of legally required surveys.
According to the research team, several pieces of evidence strongly indicate that the wreck is the Dannebroge. Archaeologists said the size and shape of the surviving timbers closely match historical drawings of the vessel. Tree-ring testing also aligns with the ship’s known construction date in 1772. Nearby finds, including cannons, cannonballs, and a bar shot, further support the conclusion.
A battle long known through records
The Dannebroge held an important role in Denmark’s naval defense during the battle. Positioned in the center of the fighting, the ship became one of the key vessels in the Danish line. Historical accounts say it caught fire during combat, later exploded, and sank in the channel known as the King’s Deep.
For historians, the wreck offers more than a dramatic shipwreck story. It provides physical proof from a battle that has largely been understood through paintings, written reports, and official records. Archaeologists say no earlier excavation had uncovered material directly tied to the Battle of Copenhagen, making the find especially significant.
The clash unfolded in shallow waters outside the Danish capital, where Danish sailors faced a larger British force with greater firepower. For more than four hours, the battle filled the harbor with smoke, flames and flying metal as ships exchanged heavy fire at close range.
Human traces emerge from the seabed
The excavation is also revealing details about the lives of ordinary crew members. Among the recovered objects are shoes, fragments of clothing, clay pipes, uniform insignia, and weapons. Researchers say such personal items are rarely preserved in museum collections, which more often focus on officers’ belongings or ceremonial artifacts.
Human remains have also been found at the site. Archaeologists recovered a lower jaw clearly identified as human, along with ribs and other bones still under study. Historical records cited by the team state that 53 people died aboard the Dannebroge, while several others later died of wounds, dozens were injured, and 19 were reported missing.