Princess Maria of Croÿ (born 1923) (b. 1923) Parents Prince Anton of Croÿ Rosalie von Heydon-Linden Children Wolfgang Graf von Schmettau Rosalie Gräfin von Schmettau Nikolaus Graf von Schmettau Isabelle Gräfin von Schmettau Siblings Prince Carl of Croÿ Princess Margarethe of Croÿ Prince Clemens of Croÿ Prince Englebert of Croÿ Prince Anton of Croÿ Princess Sophia of Croÿ Partners Matthias Graf von Schmettau