Maria Francesca Ottoboni Italian noblewoman (1715-1758) (1715–1758) Parents Marco Ottoboni, 1st Duke of Fiano Children Marco Boncompagni Ludovisi Ottoboni, 5th Duke of Fiano Siblings Maria Vittoria Ottoboni Partners Pietro Gregorio Ottoboni Boncompagni Ludovisi, 2nd Duke of Fiano