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Archaeologists Uncover Largest Known Medieval Cog Off Denmark, Exceptionally Preserved

Dendrochronology places construction around 1410 with timber traced to Pomerania plus the Netherlands, highlighting new insight into northern European trade.

Overview

  • The Viking Ship Museum announced the discovery and ongoing excavation of Svælget 2 in the Øresund strait near Copenhagen at roughly 13 meters’ depth.
  • Measuring about 92 feet by 30 feet with an estimated 300-ton capacity, the 600-year-old merchant vessel expands the known scale of cog construction.
  • Extensive sand burial preserved rare features including rigging used to control sail and mast, offering unprecedented data on how large cogs were equipped.
  • Archaeologists documented intact high castles and a fireproof brick galley with around 200 bricks and 15 tiles, along with cooking pots, dishes, and food remains.
  • Personal items such as shoes, combs, and rosary beads were recovered, no bulk cargo was found, and researchers report no evidence of warfare or conflict at the site.