5 ships-of-war and 17 pirogues forcing the 14 French defenders to flee. However, the English colony succumbed to disease. The French took over again, but the English came back in June 1664 and retained possession until 20 Oct. 1665 when diplomacy gave the island back to the French. The English invaded again in 1665, but disease, famine and the Caribs forced their fleeing in Jan. 1666. The Treaty of Breda (1667) gave control of the island back to the French. The English raided the island in 1686, but relinquished all claims in a 1687 treaty and the 1697 Treaty of Ryswick. 18th century Both the British, with their headquarters in Barbados, and the French, centered on Martinique, found Saint Lucia attractive after the slave-based sugar industry developed in 1763, and during the 18th century the island changed ownership or was declared neutral territory a dozen times, although the French settlements remained and the island was a de facto a French colony well into the 18th century. In 1722, the George I of Great Britain granted both Saint Lucia and Saint Vincent to John Montagu, 2nd Duke of Montagu. He in turn appointed Nathaniel Uring, a merchant sea captain and adventurer, as deputy-governor. Uring went to the islands with a group of seven ships, and established settlement at Petit Carenage. Unable to get enough support from British warships, he and the new colonists were quickly run off by the French. The 1730 census showed 463 occupants of the island, which included just 125 whites, 37 Caribs, 175 slaves, and the rest free blacks or mixed race. The French took control of the island in 1744, and by 1745, the island had a population of 3455, including 2573 slaves. During the Seven Years' War Britain occupied Saint Lucia in 1762, but gave the island back at the Treaty of Paris on 10 February 1763. Britain occupied the island again in 1778 after the Grand Battle of Cul de Sac during the American Revolutionary War. British Admiral George Rodney then built Fort Rodney from 1779 to 1782. By 1779, the island's population had increased to 19,230, which included 16,003 slaves working 44 sugar plantations. Yet, the Great Hurricane of 1780 killed about 800. By the time the island was restored to French rule in 1784, as a consequence of the Peace of Paris (1783), 300 plantations had been abandoned and some thousand maroons