Duchess Marie Katharina of Mecklenburg (born 1949) (b. 1949) Parents Georg Alexander, Duke of Mecklenburg-Strelitz Archduchess Ilona of Austria Children Alexander Michael Thaddeus von Wasielewski Marie Nathalie Eleonore Charlotte von Wasielewski Siblings Duchess Irene of Mecklenburg Duchess Elisabeth Christina of Mecklenburg Duke Borwin, Duke of Mecklenburg Partners Wolfgang von Wasielewski