Francisco Saavedra de Sangronis (1746–1819) was a Spanish government official and soldier whose work in Cuba during the American Revolutionary War laid the foundations for the defeat of British forces in Florida and at Yorktown. Early career Francisco Saavedra was born in Seville, Spain, in 1746, and trained as a doctor. He served alongside Bernardo de Gálvez in Spain's military campaign at Algiers in the 1770s, and through him changed career to work in Spain's Ministry of the Indies, principally as a financial planner. In 1780 he was sent to try to sort out the Spanish administration at Havana in Cuba, with the additional task of working alongside Gálvez once more, to retake Florida from British control. When the ship taking him to the Caribbean was captured by the British, Saavedra passed himself off as a merchant, and was allowed free movement within Jamaica (the British being completely unaware that just two years earlier he had been involved in planning for a future Spanish invasion of the island). He took the opportunity to find out all he could about Jamaica's ports, defences etc. A thoughtful and prescient man, he recorded in his diary in 1780: What is not being thought about at present, what ought to occupy the whole attention of politics, is the great upheaval that in time the North American revolution is going to produce in the human race. Saavedra and Yorktown In January 1781 he was finally released by the British, and began work in Havana. After making initial recommendations for administrative changes, over the next few months he helped to organise, and actually took part in Gálvez' successful siege of Pensacola, the key British base in Florida. On his return he found that his recommendations had been accepted by the Spanish government, and key officials had been replaced. In July, at the request of the Minister (José de Gálvez, Bernardo's uncle), Saavedra, who spoke and wrote French fluently, met in the French colony of St. Domingue with Admiral de Grasse to discuss the best ways of using the large French fleet he had brought across the Atlantic, and they agreed a plan for the following year, known as the Grasse-Saavedra Convention. First priority was to aid the French and American forces in the United States, preferably by attacking the British force in Virginia under Lord Cornwallis. Next was to regain control of Caribbean islands captured by