When it came time for Napoleon to find a successor to Josephine as his wife, pickings were slimmer than you might expect. Russia's Alexander I wouldn't entertain the idea of a marriage between the French emperor and Alex's youngest sister, Anna Pavlovna. Austria, which had spent years battling - and losing to - France, became the unlikely solution to Napoleon's problem. Archduchess Marie Louise of Austria was 19, suitable in rank, and available. The fact that she was Marie Antoinette's grand-niece was perhaps not brought up by the French side during negotiations for her hand.

Her marriage to Napoleon in April 1810 started badly, but things would level out between the couple and she gave birth to their son, Napoleon II, on March 20, 1811. The heir situation handled, Napoleon resumed his increasingly disastrous military campaigns, including a failed invasion of Russia that cost him half a million soldiers. After a thorough defeat by unified European armies - including Austria's - in 1814, Napoleon was exiled to Elba, and Marie Louise and her son made their way back to Vienna, and what would become a surprising new chapter of her life.

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