The remotely operated vehicle glided through black water nearly 3,000 feet below the Mediterranean when its cameras locked onto something that did not belong on the seafloor. Four iron cannons rested in formation. A spyglass lay nearby. Scattered across the sediment were pots, bottles, and tea bowls from three different continents.
This was not the English warship the team was hunting. Odyssey Marine Exploration had spent days in 2005 scanning for HMS Sussex, an 80-gun vessel lost in 1694 somewhere between Spain and Morocco. What they found instead sat deeper, smaller, and far more dangerous.
The wreck was a Barbary corsair, the first pirate ship from Algiers ever identified in the waters where these raiders once terrorized European nations. For nearly two decades the discovery remained confidential while researchers pieced together its story. The findings were published only recently in Wreckwatch magazine, according to editor-in-chief Sean Kingsley.
A Tartane Packed With Hidden Firepower
The vessel measures just 45 feet in length and has been identified as a tartane, a ship type rigged with triangular sails and oars that allowed crews to maneuver in tight coastal waters. Tartanes offered a tactical advantage beyond speed. They closely resembled fishing boats, letting corsairs close distance on merchant vessels before anyone grew suspicious.
What the crew carried below deck told a different story. Remote-operated inspections revealed four large cannons, ten swivel guns, and muskets for approximately twenty men. Swivel guns mounted on rails could be swung toward enemy rigging or crowded decks, devastating anti-personnel weapons in close combat.
Kingsley told Newsweek that heavy weaponry combined with cosmopolitan cargo defines a pirate ship. Ordinary traders did not carry this kind of firepower. The research appears in the summer 2024 issue of Wreckwatch, a publication covering global maritime archaeology and exploration.
A Cargo Assembled From Multiple Prizes
The artifacts strewn across the wreck site came from everywhere. Glass liquor bottles blown in Belgium or Germany. Tea bowls fired in Ottoman Turkey. A European spyglass, rare and valuable technology in the mid-18th century, likely seized from a captured ship.
Yet the most telling objects were also the most mundane. Pots and pans manufactured in Algiers filled part of the hold, suggesting the crew used everyday North African wares to strengthen their disguise as a peaceful trading vessel. The ship was probably heading toward Spanish settlements to raid for captives when it sank.
Researchers linked the pottery directly to kilns excavated years ago beneath Martyrs’ Square in Algiers. Those kilns supplied the corsair capital with domestic ceramics identical to the ones resting beside cannons on the seafloor. The eclectic collection, Kingsley noted in Live Science, made the wreck look unlike any normal Mediterranean trader.
Why These Pirates Terrorized Whole Nations
Barbary corsairs operated differently than their Caribbean pirates. Where figures like Blackbeard menaced individual ships, Algiers threatened entire coastal populations across Europe. Kingsley described the corsair capital as a city of 60,000 people who lived by the sword from the early 16th century until French conquest in 1830.
Raiding parties ranged as far north as southern England and Ireland. Ships and crews seized in the Atlantic or Mediterranean meant profit. Coastal villagers captured during night landings meant ransom or enslavement. Western merchants crossing the region gambled with capture on every voyage.
The newly identified wreck sank sometime around 1760. Glass bottles from the site were blown no later than that decade. Ottoman tea bowls found alongside them stopped being produced in Turkey around 1755. A sudden storm likely overwhelmed the small tartane before it could reach shallow water or safe harbor.
What Survived 260 Years Underwater
Extreme depth protected portions of the wreck that would have vanished in shallower seas. The lower third of the hull remains intact, buried beneath sediment where shipworms could not reach it. Upper sections exposed above the seabed were consumed long ago by the saltwater clams that devour exposed wood across the Mediterranean.
No fishing trawler has dragged across this site. No diver has disturbed it. The wreck sits exactly as it settled more than two and a half centuries ago, a frozen moment from the era when Barbary corsairs ruled the western Mediterranean and European sailors whispered warnings about the coast of Algiers.
Greg Stemm, director of Seascape Artifact Exhibits Inc., called the shipwreck a precious echo of one of the western Mediterranean’s great maritime horrors. Full excavation has not yet occurred, but researchers believe the vessel’s keel and much of its lower structure survive intact beneath the sand.
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