Who married Anne-Marie Stummer?

Johann Erzherzog von Österreich married Anne-Marie Stummer on May 28, 1977. Anne-Marie Stummer was 26 years old on the wedding day (26 years, 11 months and 13 days). Johann Erzherzog von Österreich was 29 years old on the wedding day (29 years, 8 months and 10 days). The age gap was 2 years, 8 months and 28 days.