Her father was Don Filippo Caracciolo, 8th Prince of Castagneto, 3rd Duke of Melito, and hereditary Patrician of Naples (1903–1965), from an old noble Neapolitan family dating back to the Kingdom of Naples; he took part in the Italian resistance movement, was the executive secretary of the National Liberation Committee, an undersecretary of the Italian Ministry of Foreign Affairs in the Second Badoglio government, helped overcome objections for the Italian Communist Party to join the government, became secretary for the Action Party, and was general-secretary of the Council of Europe.