The Mystery of the Dom van Keulen: How Gold Coins Helped Identify a Dutch Ship That Sank in 1633

The Mystery of Salcombe Bay Solved After Three Decades

Three decades ago, divers off the coast of Devon in southwest England spotted a golden glint on the seabed. First, a small ingot; then 17 coins; and finally, hundreds of other valuable objects buried in the sand of the bay.

For thirty years, the identity of this mysterious ship, its origin, and the reasons for its sinking so close to the English coast remained a complete mystery. This historical enigma has finally been definitively solved thanks to in-depth analysis and meticulous research conducted on land.

Archival documents extracted from old court records preserved in London have made it possible to identify the wreck as that of the Dom van Keulen, a Dutch merchant ship. The ship sank in December 1633 while carrying a precious cargo of gold from Morocco to Amsterdam, according to a study published in the British Museum Technical Research Bulletin.

The Underwater Discovery and Initial Red Flags

It was diver Ron Howell who first discovered the gold while exploring the seabed off Salcombe Bay in Devon. After reporting his discovery to the Receiver of Wreck—the British government agency responsible for managing shipwrecks—a team of specialists began methodically mapping the underwater site.

Over the following years, researchers recovered more than 400 gold coins, as well as ingots, jewelry, and scattered debris from a working vessel. Professor David Parham, a maritime archaeologist at Bournemouth University, led the efforts to identify the wreck.

The scientific team concluded that these items were not accidental losses from passengers, but rather a treasure of ingots deliberately transported as commercial cargo. The wreck site, which spans approximately 30 meters in length at a depth of 18 meters, contains cannons and anchors, but no painted depictions of the ship have survived. Initial leads suggested it was either a Barbary privateer or an English merchant ship, theories that were quickly ruled out.

The key to the mystery lies buried in London’s archives

Identifying this ship took nearly thirty years of effort. The key to the mystery was not found underwater, but on dry land, in a reading room. Independent historian Ian Friel spent years sifting through centuries-old Admiralty documents housed in Kew, in west London.

Among these judicial records, he discovered a report of a ship lost in December 1633, filed by two merchants from Amsterdam. Their vessel had departed from Safi, Morocco’s busiest port at the time, but never reached its destination.

One of the merchants’ statements described in detail a cargo of 9,000 gold coins known as “Barbarian ducats,” accompanied by sacks of gum and hides, which matched the Salcombe finds perfectly. The most recent coin found at the site dates to 1632, confirming the timeline of the tragedy.

A snapshot of 17th-century trans-Saharan trade

The cargo of the Dom van Keulen offers a fascinating glimpse into early modern trade routes. The ship had departed Morocco with 150 sacks of gum arabic—an acacia sap used in the manufacture of inks and medicines—as well as 64 sacks of saltpeter, an essential component of gunpowder.

The holds also contained 320 goatskins and approximately 9,000 Barbary ducats, gold coins minted in Morocco. At the time, the country was ruled by the Saadian dynasty, whose power and wealth were based in part on West African gold traded across the Sahara Desert.

This pure and abundant gold was a highly coveted resource among Dutch merchants. The crew had managed to recover most of the cargo shortly after the shipwreck because they knew the exact location of the wreck. The approximately 400 pieces that remained on the seabed—inaccessible at the time—are now preserved and partly on display at the British Museum along with the recovered jewelry.

Everyday Objects and the Fate of the Crew

Beyond the gold, divers also recovered ordinary objects that tell the story of daily life aboard a 17th-century merchant ship. Among these objects were a pewter bowl and spoon, pottery, a seal, and a fish-shaped lead sounding line that sailors used to measure water depth.

Some discoveries proved particularly unusual, such as perfectly preserved resin-coated pills, offering a rare glimpse into maritime medicine of the time. Moroccan-crafted gold jewelry—rarely found in such a precisely dated historical context—was also recovered from the sand.

The crew fared better than their ship. As water flooded the vessel, the sailors dropped anchor about 400 meters from Salcombe and rowed toward shore in the ship’s rowboat, allowing all the men to escape with their lives.

A Major Numismatic Discovery for History

Prior to this discovery, historians had very little Saadian gold from such a precisely dated archaeological context. The Dom van Keulen hoard now represents the largest known collection of Saadian coins in the world, minted in Morocco before 1633 and recovered together.

This absolute dating provides researchers with a reliable point of comparison for analyzing other coins, testing theories about the coinage of this dynasty, and assessing the amount of gold in circulation at that time.

“This provides important context for the wealth and architecture of the Saadian Sharifs, the African gold trade, and serves as tangible evidence of the flourishing 17th-century maritime trade linking Morocco, the Netherlands, and Great Britain,” explains Professor David Parham in the conclusions of his research.

The Unfinished Journey of Barbary Gold

Upon arrival in Amsterdam, Moroccan coins of this type were generally not intended to remain there for long. Dutch merchants melted down the foreign gold to re-strike it in the form of their own ducats—coins that became one of the most widely accepted currencies in the world for centuries.

The Dom van Keulen sank before its precious cargo could meet this fate, thus preserving a unique snapshot of global economic history. Today, the shipwreck site remains strictly protected under British National Heritage law, off-limits to unauthorized divers, and under constant surveillance.

Historians now have a ship’s name, a confirmed cargo, and a precise timeline for the gold routes that once connected Morocco to Northern Europe, bringing a three-decade-long historical investigation to a close.

Source: earth.com

The Mystery of the Dom van Keulen: How Gold Coins Helped Identify a Dutch Ship That Sank in 1633