Following the Jacobite defeat at the Battle of Culloden on 16 April 1746, two French privateer ships, the Le Mars and the La Bellone arrived at Loch nan Uamh and anchored there on 30 April 1746. As they were privateers, their emblem was a black cockade which also happened to be the emblem of the British-Hanoverian supporters and as such the Jacobites on shore fired upon them. However, the privateers raised the French flag and the mistake was realized and sorted out. Le Mars was reluctant to unload her supplies as the British Navy was approaching and she took on board some escaping Jacobites including James Drummond, 3rd Duke of Perth and Sir Thomas Sheridan.
The Skirmish
On 2 May 1746 three British ships crept into the loch. As the British Government ships approached Captain Rouillee of the Le Mars decided to stay at anchor, but Captain Lorry of the La Bellone set sail. This allowed the Royal Navy's to give Le Mars a broadside at close quarters which caused great loss of life: Nearly a score of privateers were killed and according to eyewitnesses her decks were awash with blood. The crew panicked and had to be forced back to duty. The La Bellone and HMS Greyhound then attacked each other and the mast of the La Bellone was broken with a broadside. There was an attempt to board the La Bellone but she gave the Greyhound two broadsides. The Greyhound had to move out of range and this allowed Le Mars to set sail. tried to stop Le Mars but a volley from La Bellone disabled her. Le Mars was then led by La Bellone out to a bay at the head of Loch nan Uamh, where Le Mars started her repairs, and La Bellone engaged the British ships. Hundreds of spectators came to the shore to watch the battle, whom HMS Greyhound fired upon to try and stop them carrying away the gold and cargo that had been unloaded by the French ships. along with HMS Greyhound and HMS Terror tried to board the French ships, but Baltimore's captain sustained a head wound and her rigging was shattered. She also lost her anchor and two of her masts. The Baltimore then headed for The Minch to get help while the La Bellone hit the Greyhound'smain mast and set fire to her hand grenades. The Le Mars was in a bad state having been hit six times above the water line, seven times below the water line and with three feet of water in her hold. Le Mars had also suffered 29 men killed and 85 men wounded.
Aftermath
The French ships escaped, but another French ship returned in September and successfully rescued the Jacobite leader Charles Edward Stuart who had been in hiding. Both French privateers were captured the following year by the Royal Navy.
