Little is known of Giustiniani 's immediate family .
It seems certain there was some form of familial link to Olimpia Giustiniani , her grandmother Olimpia Maidalchini and grand - uncle Giovanni Battista Pamphili ( later Pope Innocent X who elevated Giustiniani   to cardinal ) .
Little is known of Giustiniani 's immediate family but it seems certain there was some form of familial link to Olimpia Giustiniani , her grandmother Olimpia Maidalchini and grand - uncle Giovanni Battista Pamphili ( later Pope Innocent X who elevated Orazio Giustiniani to cardinal ) .