El Hierro
In 1566, Hernán Pérez de Grado, First Regent of the Royal Canary Islands Court, ordered the justices at La Palma, El Hierro and La Gomera to investigate the phenomenon. In his history, Abreu y Galindo reports a conversation with a French adventurer claiming to have visited San Borondon, departing thence when a storm set in and making the voyage to La Palma for shelter within a day. In another report, Alonso de Espinosa, governor of El Hierro, described sighting San Borondon island northwest of El Hierro and "leeward" of La Palma. He listed 100 witnesses to the apparition.