Alonso Álvarez de Pineda

In Aldeacentenera, Spain, in 1494, he led several expeditions in 1519 to map the westernmost coastlines of the Gulf of Mexico, from the Yucatán Peninsula to the Pánuco River, and also explored parts of Florida, which at the time was believed to be an island.

Antón de Alaminos' explorations had eliminated the western areas as being the site of the passage, leaving the land between the Pánuco River and Florida to be mapped.

[1] At the western tip of southern Florida, he attempted to sail east, but the winds were not on his side, somehow he did anchor off Villa Rica de la Veracruz shortly after Hernán Cortés had departed.

[5] Álvarez de Pineda was subsequently killed in a battle with the native Huastec people at the Pánuco River.

Álvarez de Pineda became the first European to see the coastal areas of what is now western Florida, Alabama, Mississippi, Louisiana, and Texas, lands he called "Amichel".