 Le Guillou is now remembered as the "founder" of Vieques (though this title is also sometimes conferred on Francisco Saínz, governor from 1843 to 1852, who founded Isabel Segunda, the "town of Vieques", named after Queen Isabel II of Spain).Vieques was formally annexed to Puerto Rico in 1854.In 1816, Vieques was briefly visited by Simón Bolívar when his ship ran aground there while fleeing defeat in Venezuela.