Maria Eleonora I Boncompagni Princess of Piombino (1686–1745) Parents Gregorio II Boncompagni Ippolita Ludovisi Children Gaetano I Boncompagni-Ludovisi Pietro Gregorio Ottoboni Boncompagni Ludovisi, 2nd Duke of Fiano Siblings Donna Anna Maria Boncompagni Donna Costanza Boncompagni Donna Maria Teresa Boncompagni Partners Antoni I Boncompagni-Ludovisi
