Duke Georg Alexander, Duke of Mecklenburg-Strelitz Head of the House of Mecklenburg-Strelitz (1963-1996) (1921–1996) Parents Irina Rayevskaya Duke Georg, Duke of Mecklenburg-Strelitz Children Duchess Elisabeth Christina of Mecklenburg Duchess Irene of Mecklenburg Duke Borwin, Duke of Mecklenburg Duchess Marie Katharina of Mecklenburg Siblings Duchess Helene of Mecklenburg-Strelitz Duke Carl Gregor of Mecklenburg Irina Tolstaya Partners Archduchess Ilona of Austria