Of the principle spanish explorers - columbus, balboa de leon, cortes, pizarro, de soto and coronado-which four never visited the territory or territorial waters of the land that eventually became part of the united states

The four principal Spanish explorers or conquistadors in the list who never visited the territory or territorial waters of land that eventually became part of the United States are: Christopher Columbus, Hernando Cortes, Juan Pizarro, and Vasco Nunez de Balboa.