Mariana of Austria (Queen consort of Spain in the 17th century); Mariana Bracetti (Puerto Rican leader of 1860 independent movement); Mariana DÃaz-Oliva (tennis player); Mariana Seoane (Mexican actress and singer); Mariana Trench (deepest part of the ocean); Mariana Duque (tennis player); Mariana Victoria of Spain (18th century Queen of Portugal); Mariana Nicolesco (opera singer)
