In January 1666 he set sail from Jamaica. According to John Esquemeling the fleet which he commanded, attacked and plundered both Granada and the Isle of St. Catharine, but this is not true. With the remaining of his fleet, Mansfield took, in May 1666, the island of Santa Catalina (named Providence Island by the English) from the Spaniards.
Mansfield, elected admiral of a fleet of about 500 men and ten ships, went to Costa Rica (April 1666), with the design to attack the city of Cartago (not Carthagena), several miles inland. But Mansfield was repulsed before the town of Turrialba. Then, some of his captains left him to return to Tortuga or Jamaica. Mansfield sailed on and attacked the Isle of St. Catharine.

After his capture of this island he attempted to persuade the Governor of Jamaica in June 1666 to send reinforcements to make it a permanent base for attacks upon the Spaniards. This attempt failed and afterwards he tried to persuade the Governor of Jamaica to establish a pirate base, but he died of an illness. John Esquemeling mentions Mansfield briefly in his book The Buccaneers of America. He sails away in June 1666 for another cruising (He didn’t go to Tortuga as Exquemelin says). During this he was taken by the Spaniards of Cuba, who executed him for his piracies.

Part of the information as well as the sources were provided by Raynald Laprise.

Written sources:

Cruishank, E.A.

The life of Sir Henry Morgan / E.A. Cruishank. - Toronto, 1935

Haring, Clarence Henry

The buccaneers in the West Indies in the XVIIth Century / Clarence Henry Haring. - New York : Metheun & Co., 1910

Pawson, Michael + DB

Port Royal, Jamaica / Michael Pawson and David Buisseret. - Oxford : Clarendon Press, 1975