In 1523 Ayllón obtained a cédula, or royal patent, from Charles V and the Council of the Indies to explore the Atlantic coastline of Chicora and beyond; in 1525 he sent two caravels commanded by Pedro de Quexos to chart the coastline and sound its waters.
In 1523 Ayllón obtained a cédula, or royal patent, from Charles V and the Council of the Indies giving him permission to explore the Atlantic coastline of Chicora and beyond, and granting him exclusive rights to establish a settlement there. In 1525 he sent two caravels commanded by Pedro de Quexos to chart the coastline and sound its waters.