Princess Marie Cécile of Prussia Prussian Royal (b. 1942) Parents Grand Duchess Kira Kirillovna of Russia Louis Ferdinand, Prince of Prussia Children Rixa, Herzogin von Oldenburg Paul-Wladimir Herzog von Oldenburg Bibiane, Herzogin von Oldenburg Siblings Princess Kira of Prussia Princess Xenia of Prussia Prince Louis Ferdinand of Prussia Prince Christian-Sigismund of Prussia Prince Michael of Prussia Prince Friedrich Wilhelm of Prussia Partners Duke Friedrich August of Oldenburg
