New discoveries from the warship Mars

The exploration of the wreck of the 16th century Swedish warship Mars 250 feet under the surface of the cold, dark Baltic Sea has been ongoing since its discovery in 2011, and despite the zero visibility and the life-threatening challenges involved in diving the wreck, new finds continue to be made.

“This year, we have come closer to the people aboard. We found more skeletal parts, including a femur with trauma around the knee which we believe to stem from a sharp-edged weapon,” says maritime archaeologist Rolf Fabricius Warming, who is one of the researchers involved in the investigation.

“We also found large guns and a hand grenade. We can see from the wreckage that it was a very intense and tough battle. Between 800 and 1,000 men were on board. That is comparable to the population of an entire medium-sized town at the time. Most of them died in the explosion or when the ship sank into the watery depths,” he says.

The ship was the largest in the fleet of King Eric XIV (r. 1560-1568), capable of carrying a crew of 800. The reason for the estimate of how many went down with the ship is that it sank mid-boarding. The Swedish navy engaged in battle against Denmark, Lübeck and the Polish–Lithuanian Union off the coast of Öland on May 30th, 1564. On the second day of ferocious fighting, the Mars was boarded by the Danish and Lübeckian forces who didn’t know that the ship was already on fire from a cannon shot. The gunpowder stores exploded with enormous force, blowing the front of the ship clean off — that part of the wreck was found 130 feet away from the main body of the ship — and killing whatever crew had survived up until that point died along with the enemy they had been fighting. Historians estimate that at least 300 of the dead of the Mars were Danish-Lübeckian boarders.

The diving team has also discovered a historic first this season.

This time, one of the most spectacular finds was a large grapnel (grappling hook) an anchor-like hook, which hung from the bowsprits of warships and was used to cling onto another ships in order to board it.

Grapnels are illustrated in historical sources from the 16th century, but no actual surviving examples are known apart from this particular one, says Warming.

“It’s totally unique. Together with other exciting finds, it can shed new light on Medieval and Early Modern naval warfare,” he says, and adds that the divers also found remains of possible arms and armour, including helmets and swords.

Alas, there are no pictures of the grappling hook which is a bummer, but we must forgive because visibility down there is so terrible that it’s a miracle we get any photos at all, never mind the exceptional ones we’ve gotten so far. The divers have to use high-intensity bright lights to see a foot in front of their masks and they film everything they see for the archaeologists to examine. They do this carrying big tanks with a special gas mixture to keep them from getting the bends/dying and under a crazy time crunch because for their own safety, they can only dive 40 minutes at a time.

That precious footage they’ve shot is being used to create a detailed ultra high-resolution 3D model of the shipwreck. It’s not complete yet, but here’s an all-too brief demo of the 3D photogrammetry model of the Mars and it’s awesome.

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5 Comments »

Comment by Cheryl
2018-07-21 13:33:40

What is the picture of the dog for?

 
Comment by Il Magnifico
2018-07-22 01:33:58

Yeah, I too have doubts if canine livestock will be able to keep the rodents at bay >°°<

From 1589, there is a depiction by Franz Hogenberg of the event in 1564, and the negotiations held beforehand in Rostock. As he annotated, ‘the sea battle, in which the Swedish ship ‘Magelosa’ [aka ‘Mars’, aka ‘Jutehattaren’] went down in flames , and their Admiral Jacobus Bagge was taken prisoner, AD 1564, May30th’ (“Pugna navalis, in qua igens illa suecorum navis Magelosa incendio perit, et Admiralius Jacobus Bagge capitur, Anno Dominis 1564, 30Maij”).

From much later (‘Admiral Ratsherr Knebel and Henning Krage capture the Swedish Admirality ship Makeloes, Senator E. Possehl. Lübeck 21.12.1901’), there is this piece.

 
Comment by Carol
2018-07-22 10:08:25

To make up for the lack of a grappling hook picture, I’m sure.

Although it did make me worry that the “historic first” discovery involved a dog chained to it for luck or something, perhaps to distract the Swedes from noticing the hook (Hey, look, puppy! What a good doggo! Wait, how did all of these Danes get on our ship???)

 
Comment by Trevor
2018-07-23 05:47:12

What are those things that look like rolled-up rugs in the cannon picture? Bedding for the gun crew?

 
Comment by sidthecat
2018-07-23 14:04:10

The dog’s in an amazing state of preservation.

 
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