Who married Catherine Montagu?

Alexandre Colonna-Walewski married Catherine Montagu on December 1, 1831. Catherine Montagu was 23 years old on the wedding day (23 years, 1 months and 24 days). Alexandre Colonna-Walewski was 21 years old on the wedding day (21 years, 6 months and 27 days). The age gap was 1 years, 6 months and 27 days.