Archduke Stefan of Austria Austrian noble (1932–1998) (1932–1998) Parents Princess Ileana of Romania Archduke Anton of Austria Children Peter Habsburg Constantza Habsburg Christopher Habsburg Anton Habsburg Archduchess Ileana of Austria Siblings Archduke Dominic of Austria Archduchess Elisabeth of Austria Archduchess Maria Magdalena of Austria Archduchess Maria Ileana of Austria Archduchess Alexandra of Austria Partners Mary Jerrine Soper