Westerners arrived in Caroline Islands in 1525, by the Portuguese Diogo da Rocha and his pilot Gomes de Sequeira, naming them the Sequeira Islands. At about the same time, in 1526, they were sighted by the Spanish Toribio Alonso de Salazar, he called them "Carolinas" after the emperor Carlos I of Spain, and Charles V of Holy Roman Empire. Though early Spanish navigators in the area (from 1543) called them the Nuevas Filipinas ("New Philippines"), Admiral Francisco Lazeano named them the Carolinas after the Spanish King Charles II in 1686.