Princes of the Holy Roman Empire
Marie Victoire was born in Brussels the eldest daughter of Léopold Philippe, Duke of Arenberg. Her mother was Maria Lodovica Francesca Pignatelli, Duchess of Bisaccia, Countess of Egmond , a grand daughter of Ottone Enrico del Carretto, who was an Imperial Army commander, like her own father. As a member of the House of Arenberg, she was allowed the style of "Serene Highness" reflecting the Arenbergs status as Princes of the Holy Roman Empire.