The action of 28 November 1751 was a naval engagement off Cape St. Vincent between a squadron of two Spanish ships of the line under captain Pedro Fitz-James Stuart and an Algerine squadron of two ships of the line under corsair Mohammed Chirif, which was fought from November 28 to December 2, 1751, and resulted in a victory for the Spanish fleet.

The Spanish set their sails in pursuit, and caught up to the Algerine flagship, the Danzik, while the other warship, the Castillo Nuevo, took the opportunity to flee and successfully made it back to a safe port.

The heavily damaged corsair was removed of the crew and Christian slaves held in the hold before set on fire, as it was too weak to make it back to port.

Although Charles spent his entire life trying to ensure that his daughter, Maria Theresa, would succeed him as rule of the Hapsburg dominions, many nations in Europe refused to accept the ascension.

However, the naval administration of Spain was keenly aware that the Spanish fleets needed to put to sea and engage in combat to ensure they retained their experience for the coming years.

Spain was resolved to end this threat to them by any means necessary, and the Marquis of Ensenada was ordered to assemble two naval divisions with the aim of engaging with the Barbary corsairs and to prevent the sailors of the Spanish fleet from remaining inactive and losing any experience they had gained from the war.

Around the same time, two Algerine corsairs sailed around the Iberian peninsula to carry out commerce raiding on Christian ships, posing a threat to the maritime trade of Spain.

The Danzik suddenly raised the Algerine colours and unleashed a furious cannonade upon the Dragón, and then almost immediately set sail and tried to evade the two Spanish warships.

[1] For a brief moment, she struck her colours, but Chirif, urged on by his crew, ordered it to be hoisted again and resumed the action until the sunset, when both himself and Stuart declined to continue fighting due to rough sea.

The Danzik, severely damaged, had to be set on fire after 320 prisoners-of-war were transferred aboard Stuart's flagship, among them Chirif, wounded during the battle, and 50 rescued Christian slaves, who were mostly Dutch sailors.

The expedition, although assembling 20,000 men and 74 warships, failed miserably, and was unable to move the position of the various Deys in regards to their approval of the enslavement of Christians.

[4] In 1783, Charles ordered Admiral Antonio Barceló to bombard Algiers, as it was commonly perceived that the humiliating defeat of the expedition eight years earlier had "offended the national pride of Spain".