The first fort established on the present site of Cape Coast Castle was built by
Hendrik Caerloff for the
Swedish Africa Company. Caerloff was a former employee of the
Dutch West India Company who had risen to the rank of fiscal administrator before employing himself with the latter company established by
Louis de Geer. As a former high-ranking officer of the Dutch, Caerloff had the friendly relations with the local chiefs necessary to establish a trading post. In 1650, Caerloff succeeded in getting the permission of the king of Fetu to establish a fort at Cabo Corso (meaning "short cape" in Portuguese, later corrupted to English
Cape Coast). The first timber lodge was erected at the site in 1653 and named
Carolusborg after King
Charles X of Sweden. Caerloff returned to Europe in 1655, leaving
Johann Philipp von Krusenstjerna in charge of Carolusborg. Louis de Geer had, however, died in the meantime, and Caerloff got himself involved in a serious dispute with his heirs. In Amsterdam, he convinced merchants to give a financial injection to the
Danish West India Company, for which he set sail to the Gold Coast in 1657, with the goal in mind to capture for Denmark the Swedish lodges and forts he had established himself. With the help of the Dutch, Caerloff succeeded in driving the Swedes out, leaving the Gold Coast on the captured ship
Stockholms Slott, and with Von Krusenstjerna on board as a prisoner. Caerloff had left Samuel Smit, also a former employee of the Dutch West India Company, in charge of Carolusborg. The Dutch were able to convince Smit in 1659 of the rumor that Denmark had been conquered by Sweden, upon which Smit rejoined the Dutch West India Company, handing over all Danish possessions to the Dutch. The King of Fetu was displeased with this, however, and prevented the Dutch from taking possession of the fort. A year later, the King decided to sell it to the Swedes. After the King died in 1663, the Dutch were finally able to occupy the fort. The Danes had in the meantime established another fort,
Fort Frederiksborg (1661), just a few hundred meters east from Carolusborg. Although situated perfectly to launch an attack on Carolusborg, the English capture of Carolusborg (1664) during the prelude to the
Second Anglo-Dutch War, prevented the Danes from challenging them; the English had reinforced the fort, which they named Cape Coast Castle, to such an extent that even Dutch Admiral
Michiel de Ruyter deemed it impossible to conquer. The castle was described as "a strong regular [f]ortification," with "four bulwarks, seventy guns, and two hundred and fifty men." In 1664, Sir Robert Holms captured Cape Coast Castle along with the "[F]orts of Tekorari . . ., Aaia, and Anemabo," on behalf of the Royal African Company. In 1665, Admiral Ruyter recaptured Fort Cormanytn/ Fort Amsterdam. He had intended on recapturing Cape Coast Castle, but the English "possessed themselves of a place where a hundred men might beat off a thousand," an indication that the English fortifications at Cape Coast Castle were stronger than the Dutch forces, and Ruyter's design "was laid aside." As the Dutch had captured the former English headquarters at Kormantsin and had rebuilt it as
Fort Amsterdam, Cape Coast became the new capital of the English possessions on the Gold Coast. In 1689, the pirate
Duncan Mackintosh was hanged at the Castle with a few of his crew, though he would not be the last pirate hanged at the fort. In 1722, the fort was the site where 54 men of the crew of the pirate
Bartholomew Roberts were condemned to death, of whom 52 were hanged and two reprieved. In 1757, during the
Seven Years' War, a French naval squadron badly damaged and nearly captured Cape Coast Castle. This event was likely one of the most important reasons to entirely reconstruct the Castle, which was quite notorious for its collapsing walls and leaking roofs. In 1762, an extensive spur ending in a tower was built on the western side and in 1773, a high building along the north curtain was erected, during which the last remnants of the 17th-century fort were demolished. Greenhill Point, a bastion to the east of the castle, was replaced by two new bastions, with a sea gate in the middle. To the south, two new bastions, named Grassle's Bastions, replaced an old round tower as the main defensive work. The tower, which now had no military use, was extended in the 1790s with two stories, now becoming the governors' apartments. The space below Grassle's Bastions was used as the new slave dungeons. == Siege of Carolusborg (1652) ==