Swedish archaeologists have announced earlier this month the discovery what appears to be a medieval cog from built between the 12th and 14th centuries. Sonar images reveal that the vessel is 28 metres long and seven metres wide.
The shipwreck was discovered at a depth of 100 metres in waters between the islands of Gotland and Öland off the east coast of Sweden.
There is speculation that the ship might be the lost ship from the fleet of the Danish king Valdemar Atterdag, who invaded Gotland in 1361. “There is a theoretical possibility that it is Atterdag’s ship,” said Richard Lundgren, who works for the exploration firm Ocean Recycling, in an interview with The Local.
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