Marie, Princess of Hornes Belgian noble (1704–1736) Parents Thomas Bruce, 2nd Earl of Ailesbury Charlotte d'Argenteau, comtesse d'Esneux Children Maria Theresia de Horne Elisabeth Philippine Claudine von Horn Siblings Charles Bruce, 3rd Earl of Ailesbury Robert Bruce, Lord Bruce Elizabeth Brudenell, Countess of Cardigan Partners Maximilian, Prince of Hornes