Princess Margareta, Princess of Sayn-Wittgenstein-Berleburg Franco-Swedish and German Noble (1909–2005) Parents Countess Madeleine Douglas Charles-Louis Fouché d'Otrante, 6th Duke of Otrante Children Prince Robin of Sayn-Wittgenstein-Berleburg Richard, 6th Prince of Sayn-Wittgenstein-Berleburg Madeleine Prinzessin zu Sayn-Wittgenstein-Berleburg Princess Tatiana of Sayn-Wittgenstein-Berleburg Pia Prinzessin zu Sayn-Wittgenstein-Berleburg Siblings Louis Douglas Fouché d'Otrante Partners Gustav Albrecht, 5th Prince of Sayn-Wittgenstein-Berleburg