The young Archduchess of Austria has married her Belgian racing driver boyfriend in a small civil ceremony in Monaco, it has been reported. Eleonore von Habsburg, 26, whose full title is Archduchess of Austria, Royal Princess of Hungary, Bohemia and Croatia, tied the knot with Formula E racer Jérôme d’Ambrosio, 34, on Monday at a registry office, according to Hello! magazine.