List of colonial governors of Florida
The colonial governors of Florida governed Florida during its colonial period (before 1821). The first European known to arrive there was Juan Ponce de León in 1513, but the governorship did not begin until 1565, when Pedro Menéndez de Avilés founded St. Augustine and was declared Governor and "Adelantado" of Florida. This district was subordinated to the Viceroyalty of New Spain. In 1763, following the transfer of Florida to Britain, the territory was divided into West Florida and East Florida, with separate governors. This division was maintained when Spain resumed control of Florida in 1783, and continued as provincial divisions with the Spanish Constitution of 1812. The Spanish transferred control of Florida to the United States in 1821, and the organized, incorporated Florida Territory was established on March 30, 1822. This became the modern State of Florida on March 3, 1845.
Republic of West Florida
The United States did not recognize the independence of the Republic of West Florida, and on October 27, 1810, President James Madison of it, on the basis that it was part of the Louisiana Purchase. In his proclamation, Madison invoked the portion of the Louisiana Purchase agreement that directly quoted the 1800 St. Ildefonso treaty between France and Spain: Louisiana, Madison stated, had "the same extent that it had in the hands of Spain, and that it had when France originally possessed it." However, neither the 1800 treaty nor the 1803 purchase includes the word "originally"; instead, they state, "with the same extent that it now has in the hands of Spain and that it had when France possessed it." Madison's tweak served his annexation rationale but had no basis in the treaty language.