Rare 16th Century Shipwreck Discovered Off Sweden, Older Than Iconic Vasa

A 16th century shipwreck has been discovered off Sweden’s southeastern coast, in a find officials say could offer important historical and archaeological information.

The wreck was found by Swedish navy vessel HMS Belos during a military exercise in late 2025 in the Kalmar Strait, a waterway between Sweden’s mainland and the Baltic Sea island of Öland.

Authorities announced the discovery on April 28 after analysis confirmed the vessel dates back to the late 1500s.

According to the County Administrative Board in Kalmar, dendrochronological analysis carried out on timber from the wreck showed the ship was built in the late 16th century.

The dating suggests the vessel is older than Sweden’s famous 17th century warship Vasa, which is preserved in Stockholm.

The ship has not yet been identified, but officials said the wreck has major cultural and historical value.

Antiquarian Daniel Tedenlind said in a statement that the wreck is of significant cultural historical value.

Authorities have placed the site under protection and the Swedish coast guard is monitoring the area. Diving, fishing and anchoring are not allowed near the wreck.

The Baltic Sea has long been known for preserving centuries-old wooden wrecks because of its brackish water, low oxygen levels, cold temperatures and darkness.

Those conditions have helped protect many vessels that might otherwise have deteriorated.

In February, a Swedish navy shipwreck buried underwater in central Stockholm for about 400 years became visible when unusually low Baltic Sea levels exposed parts of the site.

In another notable find, divers in July 2024 discovered a large cargo of champagne and wine aboard a shipwreck on the Baltic Sea floor off Sweden. The Swedish government later declared the site off limits.

Researchers also found centuries-old artifacts, including a weapons chest and pieces of armor, while exploring another ancient shipwreck off Sweden the same year.

Officials are expected to continue studying the newly found wreck, which may offer more information about shipbuilding and seafaring in the 1500s.

References: thelocal, cbsnews