Who married Catherine Montagu?
Alexandre Colonna-Walewski married Catherine Montagu on . 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.
Catherine Montagu

Alexandre Colonna-Walewski
Alexandre Florian Joseph, Count Colonna-Walewski (French pronunciation: [alɛksɑ̃dʁ kɔlɔna valɛvski]; Polish: Aleksander Florian Józef Colonna-Walewski; 4 May 1810 – 27 September 1868), also Count of the Empire, was a Polish and French politician and diplomat, the unacknowledged son of French emperor Napoleon I.
He is best known for his position as foreign minister of France under his cousin Napoleon III and for his diplomatic efforts presiding over the Congress of Paris, which ended the Crimean War and laid the base for modern international law of the sea with the Paris Declaration Respecting Maritime Law.
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