The Treaty of Fontainebleau was a secret agreement in 1762. In this treaty, France ceded Louisiana to Spain. The treaty happened shortly after the last battle in the French and Indian War in North America. This battle was the Battle of Signal Hill, and it happened in September 1762. This battle strengthened British control of Canada. In Europe, the related Seven Years' War continued. Because France already lost Canada, King Louis XV of France proposed to King Charles III of Spain that France should give Spain "the country known as Louisiana, as well as New Orleans and the island in which the city is at." Charles accepted on November 13, 1762.