The area that is now Manhattan was long inhabited by the Lenape Native Americans. In 1524, Florentine explorer Giovanni da Verrazzano – sailing in service of King Francis I of France – became the first documented European to visit the area that would become New York City. He entered the tidal strait now known as The Narrows and named the land around Upper New York Harbor "New Angoulême", in reference to the family name of King Francis I that was derived from Angoulême in France; he sailed far enough into the harbor to sight the Hudson River, which he referred to in his report to the French king as a "very big river"; and he named the "Bay of Santa Margarita" – what is now Upper New York Bay – after Marguerite de Navarre, the elder sister of the king.