Beneditto Giustaniani, 5th Prince Giustiniani (1739-1793) (1739–1793) Parents Don Girolamo, 4.Principe Giustiniani Donna Anna Maria Angelica Ruspoli Children Catherine Giustiniani Vincenzo Giustiniani, 6th Prince Giustaniani Chevalier Lorenzo Giustiniani Giacomo Giustiniani Maria Isabella Giustiniani Partners Cecilia Mahony, Comtesse Mahony