 In February 1571, the entire party was massacred by Indians except Alonso de Olmos.The following year, a Spanish party from Florida went to the area, rescued Alonso, and killed an estimated 20 Indians.Early in the 16th century, Spanish explorers were the first recorded Europeans to see the mouth of the Chesapeake Bay, which the Spanish called "Bahía de Madre de Dios" or "Bahía de Santa Maria."