In 1565 Pedro Menéndez de Avilés founded St. Augustine on the Florida peninsula. Spanish activity pushed Spain's northern frontier up as far as Chesapeake Bay, but effective control extended only to Port Royal, South Carolina. Menéndez, and subsequent Florida governors, established missions and presidios along the Atlantic seacoast and in the interior areas to give added protection to Florida.
Pearson, Jr., Fred Lamar
"Florencia Investigation of Spanish Timucua,"
Florida Historical Quarterly: Vol. 51:
2, Article 7.
Available at: https://stars.library.ucf.edu/fhq/vol51/iss2/7