 Spain, which ceded Spanish Florida to the British in the Treaty of Paris in order to regain its colonies in Havana and Manila, did not contest British authority over the eastern part of French Louisiana as it desired the western portion that was adjacent to its colony of New Spain.Spanish colonization efforts focused on New Orleans and its surroundings, and so Oklahoma remained free from European settlement during Spanish rule.In 1800, France regained sovereignty of the western territory of Louisiana in the secret Third Treaty of San Ildefonso.